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< 1 2 3 4 5 6 >Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 6258 | Bus | greedy implementation math | Statement | C | Codeforces Round 436 (Div. 2) {864} | PROGRAMMING | 1500 | ||
| 6419 | Make a Permutation! | greedy implementation math | Statement | D | Codeforces Round 436 (Div. 2) {864} | PROGRAMMING | 1500 | ||
| 10225 | Bark to Unlock | brute force implementation strings | Statement | A | Codeforces Round 438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) {868} | PROGRAMMING | 55046 | 1000 | |
| 1032 | Huge Strings | bitmasks brute force dp implementation strings | Statement | D | Codeforces Round 438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) {868} | PROGRAMMING | 55046 | 2100 | |
| 5411 | Sorting the Coins | dsu implementation sortings two pointers | Statement | B | Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} | PROGRAMMING | Codeforces Round #441. Editorial. | 1500 | |
| 10533 | Divisiblity of Differences | implementation math number theory | Statement | B | Codeforces Round 441 (Div. 2, by Moscow Team Olympiad) {876} | PROGRAMMING | Codeforces Round #441. Editorial. | 1300 | |
| 11637 | Alex and broken contest | implementation strings | Statement | A | Codeforces Round 442 (Div. 2) {877} | PROGRAMMING | 55362 | 1200 | |
| 2075 | Field of Wonders | implementation strings | Statement | E | 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} | PROGRAMMING | 1600 | ||
| 1811 | Palindromic Cut | brute force implementation strings | Statement | H | 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} | PROGRAMMING | 1800 | ||
| 5703 | Petya and Catacombs | dsu greedy implementation trees | Statement | C | Технокубок 2018 - Отборочный Раунд 3 {886} | PROGRAMMING | Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) | 1300 | |
| 9148 | K-Dominant Character | binary search implementation two pointers | Statement | C | Educational Codeforces Round 32 {888} | PROGRAMMING | Educational Codeforces Round 32 - Editorial | 1400 | |
| 10301 | Wrath | greedy implementation two pointers | Statement | B | Codeforces Round 446 (Div. 2) {892} | PROGRAMMING | Codeforces Round #446 Editorial | 1200 | |
| 10873 | Proper Nutrition | brute force implementation number theory | Statement | B | Codeforces Round 451 (Div. 2) {898} | PROGRAMMING | Codeforces Round #451 (Div.2) Editorial | 1300 | |
| 5908 | Phone Numbers | implementation strings | Statement | C | Codeforces Round 451 (Div. 2) {898} | PROGRAMMING | Codeforces Round #451 (Div.2) Editorial | 1400 | |
| 17795 | Rounding | implementation math | Statement | A | Codeforces Round 451 (Div. 2) {898} | PROGRAMMING | Codeforces Round #451 (Div.2) Editorial | 800 | |
| 3705 | Segments Removal | data structures dsu flows implementation two pointers | Statement | E | Codeforces Round 452 (Div. 2) {899} | PROGRAMMING | Codeforces Round #452 (Div.2) Editorial | 2100 | |
| 1632 | Swapping Characters | brute force hashing implementation strings | Statement | E | Educational Codeforces Round 34 (Rated for Div. 2) {903} | PROGRAMMING | Educational Codeforces Round 34 Editorial | 2200 | |
| 4495 | Shockers | implementation strings | Statement | A | Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} | PROGRAMMING | Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) | 1600 | |
| 7272 | New Year and Curling | brute force geometry implementation math | Statement | C | Good Bye 2017 {908} | PROGRAMMING | Good Bye 2017 Editorial | 1500 | |
| 24706 | Modular Exponentiation | implementation math | Statement | A | Hello 2018 {913} | PROGRAMMING | Tutorial | 1000 | |
| 20106 | Christmas Spruce | implementation trees | Statement | B | Hello 2018 {913} | PROGRAMMING | Tutorial | 1200 | |
| 15945 | Perfect Squares | brute force implementation math | Statement | A | Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} | PROGRAMMING | Tutorial | 1100 | |
| 5986 | Physical Education Lessons | data structures implementation sortings | Statement | E | Educational Codeforces Round 36 (Rated for Div. 2) {915} | PROGRAMMING | 57123 | 2300 | |
| 9747 | Jamie and Alarm Snooze | brute force implementation math | Statement | A | Codeforces Round 457 (Div. 2) {916} | PROGRAMMING | Codeforces Round #457 (Div. 2) Editorial | 1200 | |
| 3694 | The Monster | dp greedy implementation math | Statement | A | Codeforces Round 459 (Div. 1) {917} | PROGRAMMING | Codeforces Round #459 Editorial | 1900 | |
| 20754 | Radio Station | implementation strings | Statement | B | Codeforces Round 459 (Div. 2) {918} | PROGRAMMING | 900 | ||
| 32288 | Perfect Number | binary search brute force dp implementation number theory | Statement | B | Codeforces Round 460 (Div. 2) {919} | PROGRAMMING | Codeforces Round #460 (Div. 2) Editorial | 1100 | |
| 1471 | Picking Strings | constructive algorithms implementation strings | Statement | D | VK Cup 2018 - Round 1 {923} | PROGRAMMING | VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial | 2500 | |
| 2360 | Resource Distribution | binary search implementation sortings | Statement | B | VK Cup 2018 - Round 3 {925} | PROGRAMMING | Разбор VK 2018 Round 3 + Codeforces Round #477 | 1800 | |
| 4221 | 2-3-numbers | implementation math | Statement | A | VK Cup 2018 - Wild-card Round 1 {926} | PROGRAMMING | Разбор VK Cup 2018 — Уайлд-кард Раунд 1 | 1300 | |
| 3229 | Game with String | implementation probabilities strings | Statement | B | Codeforces Round 468 (Div. 1, based on Technocup 2018 Final Round) {930} | PROGRAMMING | Codeforces Round #468 and Technocup 2018 Final Round Analysis | 1800 | |
| 3546 | Laboratory Work | implementation math | Statement | C | Codeforces Round 468 (Div. 2, based on Technocup 2018 Final Round) {931} | PROGRAMMING | Codeforces Round #468 and Technocup 2018 Final Round Analysis | 1700 | |
| 13209 | Friends Meeting | brute force greedy implementation math | Statement | A | Codeforces Round 468 (Div. 2, based on Technocup 2018 Final Round) {931} | PROGRAMMING | Codeforces Round #468 and Technocup 2018 Final Round Analysis | 800 | |
| 4694 | Save Energy! | binary search implementation math | Statement | A | Codeforces Round 467 (Div. 1) {936} | PROGRAMMING | Codeforces Round #467, Editorial | 1700 | |
| 1291 | Lock Puzzle | constructive algorithms implementation strings | Statement | C | Codeforces Round 467 (Div. 1) {936} | PROGRAMMING | Codeforces Round #467, Editorial | 2500 | |
| 16763 | Olympiad | implementation sortings | Statement | A | Codeforces Round 467 (Div. 2) {937} | PROGRAMMING | Codeforces Round #467, Editorial | 800 | |
| 6799 | Phone Numbers | constructive algorithms implementation strings | Statement | C | Codeforces Round 466 (Div. 2) {940} | PROGRAMMING | [Editorial] Codeforces Round #466 (Div. 2) | 1500 | |
| 16562 | Left-handers, Right-handers and Ambidexters | implementation math | Statement | A | Codeforces Round 469 (Div. 2) {950} | PROGRAMMING | 58291 | 900 | |
| 7901 | String Typing | implementation strings | Statement | B | Educational Codeforces Round 40 (Rated for Div. 2) {954} | PROGRAMMING | 58519 | 1400 | |
| 3857 | Mahmoud and Ehab and the xor-MST | bitmasks dp graphs implementation math | Statement | E | Codeforces Round 473 (Div. 2) {959} | PROGRAMMING | Codeforces round #473 editorial | 1900 | |
| 1981 | Full Binary Tree Queries | brute force implementation trees | Statement | D | Divide by Zero 2018 and Codeforces Round 474 (Div. 1 + Div. 2, combined) {960} | PROGRAMMING | Divide by Zero 2018 and Codeforces Round #474 (Div. 1 + Div. 2, combined) Editorial | 2100 | |
| 27505 | Lecture Sleep | data structures dp implementation two pointers | Statement | B | Educational Codeforces Round 41 (Rated for Div. 2) {961} | PROGRAMMING | Educational Codeforces Round 41 Editorial | 1300 | |
| 8531 | Make a Square | brute force implementation math | Statement | C | Educational Codeforces Round 42 (Rated for Div. 2) {962} | PROGRAMMING | Educational Codeforces Round 42 Editorial | 1400 | |
| 10475 | Aramic script | implementation strings | Statement | A | Codeforces Round 478 (Div. 2) {975} | PROGRAMMING | Codeforces Round #478 (Div. 2), Editorial | 1000 | |
| 6098 | Lara Croft and the New Game | implementation math | Statement | B | Educational Codeforces Round 43 (Rated for Div. 2) {976} | PROGRAMMING | 59195 | 1300 | |
| 11692 | Nested Segments | greedy implementation sortings | Statement | C | Educational Codeforces Round 43 (Rated for Div. 2) {976} | PROGRAMMING | 59195 | 1500 | |
| 52046 | Two-gram | implementation strings | Statement | B | Codeforces Round 479 (Div. 3) {977} | PROGRAMMING | Codeforces Round #479 (Div. 3) Editorial | 900 | |
| 31105 | Letters | binary search implementation two pointers | Statement | C | Codeforces Round 481 (Div. 3) {978} | PROGRAMMING | T | 1000 | |
| 10171 | Almost Arithmetic Progression | brute force implementation math | Statement | D | Codeforces Round 481 (Div. 3) {978} | PROGRAMMING | T | 1500 | |
| 5008 | Petya's Exams | greedy implementation sortings | Statement | G | Codeforces Round 481 (Div. 3) {978} | PROGRAMMING | T | 1800 | |
| 11057 | Links and Pearls | implementation math | Statement | A | Codeforces Round 480 (Div. 2) {980} | PROGRAMMING | Tutorial | 900 | |
| 10445 | Antipalindrome | brute force implementation strings | Statement | A | Avito Code Challenge 2018 {981} | PROGRAMMING | 59713 | 1000 | |
| 7019 | Useful Decomposition | implementation trees | Statement | C | Avito Code Challenge 2018 {981} | PROGRAMMING | 59713 | 1400 | |
| 4874 | Finite or not? | implementation math | Statement | A | Codeforces Round 483 (Div. 1) [Thanks, Botan Investments and Victor Shaburov!] {983} | PROGRAMMING | Codeforces Round #483 [Thanks, Botan Investments and Victor Shaburov!] Editoral | 1700 | |
| 11344 | Equal Sums | implementation sortings | Statement | C | Codeforces Round 486 (Div. 3) {988} | PROGRAMMING | 59810 | 1400 | |
| 11259 | A Blend of Springtime | implementation strings | Statement | A | Codeforces Round 487 (Div. 2) {989} | PROGRAMMING | Codeforces Round #487 (Div. 2) Editorial | 1000 | |
| 11336 | Commentary Boxes | implementation math | Statement | A | Educational Codeforces Round 45 (Rated for Div. 2) {990} | PROGRAMMING | Educational Codeforces Round 45 Editorial | 1000 | |
| 415 | Concise and clear | brute force greedy implementation math | Statement | F | Codeforces Round 491 (Div. 2) {991} | PROGRAMMING | 60181 | 2800 | |
| 2042 | Nastya and a Game | brute force implementation math | Statement | D | Codeforces Round 489 (Div. 2) {992} | PROGRAMMING | 60083 | 2100 | |
| 14473 | Nastya and an Array | implementation sortings | Statement | A | Codeforces Round 489 (Div. 2) {992} | PROGRAMMING | 60083 | 900 | |
| 6101 | Knights of a Polygonal Table | greedy implementation sortings | Statement | B | Codeforces Round 488 by NEAR (Div. 2) {994} | PROGRAMMING | Codeforces Round #488 editorial | 1400 | |
| 7496 | Suit and Tie | greedy implementation math | Statement | B | Codeforces Round 492 (Div. 1) [Thanks, uDebug!] {995} | PROGRAMMING | Editorial for Codeforces Round #492 [Thanks u-Debug!] | 1500 | |
| 8710 | Convert to Ones | brute force greedy implementation math | Statement | A | Codeforces Round 493 (Div. 1) {997} | PROGRAMMING | 60357 | 1500 | |
| 8948 | Covered Points Count | data structures implementation sortings | Statement | C | Educational Codeforces Round 46 (Rated for Div. 2) {1000} | PROGRAMMING | 60288 | 1700 | |
| 11705 | Intense Heat | brute force implementation math | Statement | C | Codeforces Round 494 (Div. 3) {1003} | PROGRAMMING | 60417 | 1300 | |
| 10074 | Sonya and Exhibition | constructive algorithms greedy implementation math | Statement | B | Codeforces Round 495 (Div. 2) {1004} | PROGRAMMING | 60443 | 1400 | |
| 28122 | Delete from the Left | brute force implementation strings | Statement | B | Codeforces Round 496 (Div. 3) {1005} | PROGRAMMING | Codeforces Round 496 (Div. 3): Problem Tutorials | 1000 | |
| 14894 | Polycarp's Practice | greedy implementation sortings | Statement | B | Codeforces Round 498 (Div. 3) {1006} | PROGRAMMING | 60672 | 1200 | |
| 16549 | Romaji | implementation strings | Statement | A | Codeforces Round 497 (Div. 2) {1008} | PROGRAMMING | Editorial for Codeforces Round #497 by Skyglow | 900 | |
| 2635 | Mars rover | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 499 (Div. 1) {1010} | PROGRAMMING | 60851 | 2100 | |
| 13438 | Stages | greedy implementation sortings | Statement | A | Codeforces Round 499 (Div. 2) {1011} | PROGRAMMING | 60851 | 1000 | |
| 6732 | Photo of The Sky | brute force implementation math sortings | Statement | A | Codeforces Round 500 (Div. 1) [based on EJOI] {1012} | PROGRAMMING | 60920 | 1500 | |
| 16133 | Death Note | greedy implementation math | Statement | A | Educational Codeforces Round 48 (Rated for Div. 2) {1016} | PROGRAMMING | Разбор Educational Codeforces Round 48 | 900 | |
| 9739 | The Bits | implementation math | Statement | B | Codeforces Round 502 (in memory of Leopoldo Taravilse, Div. 1 + Div. 2) {1017} | PROGRAMMING | Разбор (англ.) | 1200 | |
| 9411 | Single Wildcard Pattern Matching | brute force implementation strings | Statement | A | Codeforces Round 504 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1023} | PROGRAMMING | Codeforces Round 504 Editorial | 1300 | |
| 627 | Colored Cubes | constructive algorithms implementation matrices | Statement | E | Codeforces Round 505 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1025} | PROGRAMMING | Codeforces Round #505 Editorial | 2600 | |
| 16798 | Doggo Recoloring | implementation sortings | Statement | A | Codeforces Round 505 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1025} | PROGRAMMING | Codeforces Round #505 Editorial | 900 | |
| 19375 | Palindromic Twist | implementation strings | Statement | A | Educational Codeforces Round 49 (Rated for Div. 2) {1027} | PROGRAMMING | Educational Codeforces Round 49 Editorial | 1000 | |
| 8831 | Numbers on the Chessboard | implementation math | Statement | B | Educational Codeforces Round 49 (Rated for Div. 2) {1027} | PROGRAMMING | Educational Codeforces Round 49 Editorial | 1300 | |
| 5185 | Rectangles | geometry implementation sortings | Statement | C | AIM Tech Round 5 (rated, Div. 1 + Div. 2) {1028} | PROGRAMMING | 61493 | 1600 | |
| 13684 | Many Equal Substrings | implementation strings | Statement | A | Codeforces Round 506 (Div. 3) {1029} | PROGRAMMING | Codeforces Round #506 (Div. 3) Editorial | 1300 | |
| 4347 | Concatenated Multiples | implementation math | Statement | D | Codeforces Round 506 (Div. 3) {1029} | PROGRAMMING | Codeforces Round #506 (Div. 3) Editorial | 2100 | |
| 13487 | Golden Plate | implementation math | Statement | A | Technocup 2019 - Elimination Round 2 {1031} | PROGRAMMING | Codeforces Round #517 and Technocup 2019 Elimination Round 2 Editorial | 700 | |
| 15805 | Equality | implementation strings | Statement | A | Codeforces Round 508 (Div. 2) {1038} | PROGRAMMING | Tutorial | 800 | |
| 27184 | Heist | greedy implementation sortings | Statement | A | Codeforces Round 509 (Div. 2) {1041} | PROGRAMMING | Codeforces Round #509 (Div. 2) Editorial | 800 | |
| 11358 | Elections | implementation math | Statement | A | Codeforces Round 519 by Botan Investments {1043} | PROGRAMMING | Codeforces Round #519 Editorial | 800 | |
| 8980 | Vasya And Password | greedy implementation strings | Statement | A | Educational Codeforces Round 51 (Rated for Div. 2) {1051} | PROGRAMMING | Educational Codeforces Round 51 Editorial | 1200 | |
| 10028 | Vasya and Multisets | brute force dp greedy implementation math | Statement | C | Educational Codeforces Round 51 (Rated for Div. 2) {1051} | PROGRAMMING | Educational Codeforces Round 51 Editorial | 1400 | |
| 519 | Chips Puzzle | constructive algorithms implementation math | Statement | E | Mail.Ru Cup 2018 Round 1 {1054} | PROGRAMMING | Editorial | 2400 | |
| 681 | Refactoring | greedy implementation strings | Statement | D | Mail.Ru Cup 2018 Round 2 {1055} | PROGRAMMING | Mail.Ru Cup 2018 Round 2 — analysis | 2300 | |
| 2605 | Pick Heroes | greedy implementation interactive sortings | Statement | C | Mail.Ru Cup 2018 Round 3 {1056} | PROGRAMMING | Mail.Ru Cup 2018 Round 3 Editorial | 1700 | |
| 5248 | Maximum Subrectangle | binary search implementation two pointers | Statement | C | Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) {1060} | PROGRAMMING | User editorial for Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) | 1600 | |
| 7737 | Views Matter | greedy implementation sortings | Statement | B | Codeforces Round 523 (Div. 2) {1061} | PROGRAMMING | Tutorial (en) | 1500 | |
| 11254 | Multiplicity | data structures dp implementation math number theory | Statement | C | Codeforces Round 523 (Div. 2) {1061} | PROGRAMMING | Tutorial (en) | 1700 | |
| 2611 | TV Shows | data structures greedy implementation sortings | Statement | D | Codeforces Round 523 (Div. 2) {1061} | PROGRAMMING | Tutorial (en) | 2000 | |
| 24602 | Coins | greedy implementation math | Statement | A | Codeforces Round 523 (Div. 2) {1061} | PROGRAMMING | Tutorial (en) | 800 | |
| 6009 | Banh-mi | greedy implementation math | Statement | C | Codeforces Round 520 (Div. 2) {1062} | PROGRAMMING | Tutorial | 1600 | |
| 4199 | Fun with Integers | dfs and similar graphs implementation math | Statement | D | Codeforces Round 520 (Div. 2) {1062} | PROGRAMMING | Tutorial | 1800 | |
| 15376 | Vasya and Chocolate | implementation math | Statement | A | Educational Codeforces Round 52 (Rated for Div. 2) {1065} | PROGRAMMING | Educational Codeforces Round 52 Editorial | 800 | |
| 6639 | Binary Numbers AND Sum | data structures implementation math | Statement | E | Codeforces Round 515 (Div. 3) {1066} | PROGRAMMING | 62419 | 1700 | |
| 17414 | Diverse Substring | implementation strings | Statement | A | Educational Codeforces Round 53 (Rated for Div. 2) {1073} | PROGRAMMING | 62742 | 1000 | |
| 11326 | Vasya and Books | implementation math | Statement | B | Educational Codeforces Round 53 (Rated for Div. 2) {1073} | PROGRAMMING | 62742 | 1100 | |
| 4622 | Taxi drivers and Lyft | implementation sortings | Statement | B | Lyft Level 5 Challenge 2018 - Final Round (Open Div. 2) {1075} | PROGRAMMING | E | 1200 | |
| 9211 | The King's Race | implementation math | Statement | A | Lyft Level 5 Challenge 2018 - Final Round (Open Div. 2) {1075} | PROGRAMMING | E | 900 | |
| 14928 | Divisor Subtraction | implementation math number theory | Statement | B | Educational Codeforces Round 54 (Rated for Div. 2) {1076} | PROGRAMMING | E | 1200 | |
| 1702 | Olya and magical square | constructive algorithms implementation math | Statement | D | Codeforces Round 524 (Div. 2) {1080} | PROGRAMMING | Codeforces Round #524 (Div. 2) Editorial | 2000 | |
| 574 | Tricky Interactor | constructive algorithms implementation interactive | Statement | F | Avito Cool Challenge 2018 {1081} | PROGRAMMING | 63888 | 2500 | |
| 9482 | Vasya and Book | implementation math | Statement | A | Educational Codeforces Round 55 (Rated for Div. 2) {1082} | PROGRAMMING | 63544 | 1200 | |
| 5709 | Connect Three | implementation math | Statement | C | Technocup 2019 - Elimination Round 4 {1085} | PROGRAMMING | Technocup 2019 — Elimination Round 4 + Codeforces Round 528: editorial | 1600 | |
| 5994 | Minimum Diameter Tree | constructive algorithms implementation trees | Statement | D | Technocup 2019 - Elimination Round 4 {1085} | PROGRAMMING | Technocup 2019 — Elimination Round 4 + Codeforces Round 528: editorial | 1700 | |
| 1161 | Vasya and Templates | greedy implementation strings | Statement | E | Technocup 2019 - Elimination Round 4 {1085} | PROGRAMMING | Technocup 2019 — Elimination Round 4 + Codeforces Round 528: editorial | 2500 | |
| 12782 | Right-Left Cipher | implementation strings | Statement | A | Technocup 2019 - Elimination Round 4 {1085} | PROGRAMMING | Technocup 2019 — Elimination Round 4 + Codeforces Round 528: editorial | 900 | |
| 13735 | Ehab and subtraction | implementation sortings | Statement | B | Codeforces Round 525 (Div. 2) {1088} | PROGRAMMING | Codeforces round #525 editorial | 1000 | |
| 3255 | Ehab and another another xor problem | bitmasks constructive algorithms implementation interactive | Statement | D | Codeforces Round 525 (Div. 2) {1088} | PROGRAMMING | Codeforces round #525 editorial | 2000 | |
| 1122 | New Year and the Acquaintance Estimation | binary search data structures graphs greedy implementation math sortings | Statement | E | Good Bye 2018 {1091} | PROGRAMMING | Editorial | 2400 | |
| 18623 | New Year and the Christmas Ornament | brute force implementation math | Statement | A | Good Bye 2018 {1091} | PROGRAMMING | Editorial | 900 | |
| 5937 | Great Vova Wall (Version 1) | greedy implementation math | Statement | D1 | Codeforces Round 527 (Div. 3) {1092} | PROGRAMMING | Codeforces Round #527 (Div. 3) Editorial | 2100 | |
| 19842 | Find Divisible | greedy implementation math | Statement | A | Educational Codeforces Round 57 (Rated for Div. 2) {1096} | PROGRAMMING | Разбор Educational Codeforces Round 57 | 800 | |
| 449 | Fedya the Potter | binary search implementation math number theory | Statement | E | Codeforces Round 530 (Div. 1) {1098} | PROGRAMMING | 64331 | 3400 | |
| 17391 | Game with string | data structures implementation math | Statement | B | Codeforces Round 534 (Div. 2) {1104} | PROGRAMMING | Codeforces Round #534 — Editorial | 1300 | |
| 15983 | Splitting into digits | constructive algorithms implementation math | Statement | A | Codeforces Round 534 (Div. 2) {1104} | PROGRAMMING | Codeforces Round #534 — Editorial | 800 | |
| 10633 | Zuhair and Strings | brute force implementation strings | Statement | B | Codeforces Round 533 (Div. 2) {1105} | PROGRAMMING | Tutorial | 1200 | |
| 4492 | Kilani and the Game | dfs and similar graphs implementation shortest paths | Statement | D | Codeforces Round 533 (Div. 2) {1105} | PROGRAMMING | Tutorial | 1900 | |
| 16408 | Lunar New Year and Number Division | greedy implementation math sortings | Statement | C | Codeforces Round 536 (Div. 2) {1106} | PROGRAMMING | Tutorial | 1000 | |
| 3942 | Compression | dp implementation math number theory | Statement | D | Educational Codeforces Round 59 (Rated for Div. 2) {1107} | PROGRAMMING | Educational Codeforces Round 59 Editorial | 1800 | |
| 18292 | Superhero Transformation | implementation strings | Statement | A | CodeCraft-19 and Codeforces Round 537 (Div. 2) {1111} | PROGRAMMING | CodeCraft-19 and Codeforces Round #537 (Div. 2) Editorial | 1000 | |
| 6589 | Average Superhero Gang Power | brute force implementation math | Statement | B | CodeCraft-19 and Codeforces Round 537 (Div. 2) {1111} | PROGRAMMING | CodeCraft-19 and Codeforces Round #537 (Div. 2) Editorial | 1600 | |
| 8078 | Trailing Loves (or L'oeufs?) | brute force implementation math number theory | Statement | C | Codeforces Round 538 (Div. 2) {1114} | PROGRAMMING | Codeforces Round #538 (Div. 2) Editorial | 1700 | |
| 11597 | Best Subsegment | implementation math | Statement | A | Educational Codeforces Round 60 (Rated for Div. 2) {1117} | PROGRAMMING | 65365 | 1100 | |
| 7223 | Ramesses and Corner Inversion | constructive algorithms greedy implementation math | Statement | C | Codeforces Global Round 2 {1119} | PROGRAMMING | Codeforces Global Round 2 Editorial | 1500 | |
| 1756 | Diana and Liana | greedy implementation two pointers | Statement | A | Codeforces Round 543 (Div. 1, based on Technocup 2019 Final Round) {1120} | PROGRAMMING | Разбор задач финала Технокубка 2019 и Codeforces Round #543 | 2200 | |
| 484 | Once in a casino | constructive algorithms greedy implementation math | Statement | B | Codeforces Round 543 (Div. 1, based on Technocup 2019 Final Round) {1120} | PROGRAMMING | Разбор задач финала Технокубка 2019 и Codeforces Round #543 | 2700 | |
| 7528 | Technogoblet of Fire | implementation sortings | Statement | A | Codeforces Round 543 (Div. 2, based on Technocup 2019 Final Round) {1121} | PROGRAMMING | Codeforces Round #543 and Technocup 2019 Final Round Editorial | 1100 | |
| 4727 | Skyscrapers | implementation sortings | Statement | A | Codeforces Round 545 (Div. 1) {1137} | PROGRAMMING | Codeforces Round #545 – Editorial | 1600 | |
| 17793 | Even Substrings | implementation strings | Statement | A | Codeforces Round 548 (Div. 2) {1139} | PROGRAMMING | Codeforces Round #548 Editorial | 700 | |
| 11805 | Good String | implementation strings | Statement | B | Educational Codeforces Round 62 (Rated for Div. 2) {1140} | PROGRAMMING | Educational Codeforces Round 62 Editorial | 1200 | |
| 40870 | Game 23 | implementation math | Statement | A | Codeforces Round 547 (Div. 3) {1141} | PROGRAMMING | 66062 | 1000 | |
| 18496 | Parity Alternated Deletions | greedy implementation sortings | Statement | B | Codeforces Round 550 (Div. 3) {1144} | PROGRAMMING | 66307 | 1000 | |
| 22316 | Diverse Strings | implementation strings | Statement | A | Codeforces Round 550 (Div. 3) {1144} | PROGRAMMING | 66307 | 900 | |
| 9461 | Hate "A" | implementation strings | Statement | B | Forethought Future Cup - Elimination Round {1146} | PROGRAMMING | 66639 | 1100 | |
| 23885 | Love "A" | implementation strings | Statement | A | Forethought Future Cup - Elimination Round {1146} | PROGRAMMING | 66639 | 600 | |
| 2090 | Three Religions | dp implementation strings | Statement | B | Codeforces Round 556 (Div. 1) {1149} | PROGRAMMING | 66783 | 2200 | |
| 1763 | Tree Generator™ | data structures implementation trees | Statement | C | Codeforces Round 556 (Div. 1) {1149} | PROGRAMMING | 66783 | 2900 | |
| 16334 | Neko Finds Grapes | greedy implementation math | Statement | A | Codeforces Round 554 (Div. 2) {1152} | PROGRAMMING | T | 800 | |
| 11670 | Gourmet Cat | implementation math | Statement | C | Codeforces Round 552 (Div. 3) {1154} | PROGRAMMING | Codeforces Round #552 (Div. 3) Editorial | 1400 | |
| 7109 | Two Teams | data structures implementation sortings | Statement | E | Codeforces Round 552 (Div. 3) {1154} | PROGRAMMING | Codeforces Round #552 (Div. 3) Editorial | 1800 | |
| 28864 | Reverse a Substring | implementation sortings strings | Statement | A | Educational Codeforces Round 63 (Rated for Div. 2) {1155} | PROGRAMMING | 66687 | 1000 | |
| 6622 | Ugly Pairs | dfs and similar greedy implementation sortings strings | Statement | B | Educational Codeforces Round 64 (Rated for Div. 2) {1156} | PROGRAMMING | 66827 | 1800 | |
| 8634 | The Party and Sweets | binary search constructive algorithms greedy implementation math sortings two pointers | Statement | A | Codeforces Round 559 (Div. 1) {1158} | PROGRAMMING | 66993 | 1500 | |
| 7891 | Expansion coefficient of the array | implementation math | Statement | B | Codeforces Round 559 (Div. 2) {1159} | PROGRAMMING | 66993 | 1300 | |
| 13499 | A pile of stones | implementation math | Statement | A | Codeforces Round 559 (Div. 2) {1159} | PROGRAMMING | 66993 | 800 | |
| 4025 | Power Transmission (Hard Edition) | data structures geometry implementation math | Statement | C2 | Codeforces Round 558 (Div. 2) {1163} | PROGRAMMING | 66943 | 2000 | |
| 14830 | Remainder | implementation math | Statement | A | Codeforces Round 560 (Div. 3) {1165} | PROGRAMMING | Codeforces Round #560 (Div. 3) Editorial | 1200 | |
| 596 | Anagram Paths | dp implementation trees | Statement | D | Codeforces Round 562 (Div. 1) {1168} | PROGRAMMING | Codeforces Round #562 — Editorial | 2900 | |
| 12818 | Circle Metro | implementation math | Statement | A | Codeforces Round 562 (Div. 2) {1169} | PROGRAMMING | Codeforces Round #562 — Editorial | 1000 | |
| 836 | Minus and Minus Give Plus | *special implementation strings | Statement | C | Kotlin Heroes: Episode 1 {1170} | PROGRAMMING | Kotlin Heroes Editorial | ||
| 2109 | Ehab and the Big Finale | constructive algorithms divide and conquer graphs implementation interactive trees | Statement | F | Codeforces Round 563 (Div. 2) {1174} | PROGRAMMING | Codeforces round #563 editorial | 2300 | |
| 20199 | From Hero to Zero | implementation math | Statement | A | Educational Codeforces Round 66 (Rated for Div. 2) {1175} | PROGRAMMING | Editorial | 1000 | |
| 4850 | Minimal Segment Cover | data structures dfs and similar divide and conquer dp greedy implementation trees | Statement | E | Educational Codeforces Round 66 (Rated for Div. 2) {1175} | PROGRAMMING | Editorial | 2200 | |
| 2460 | Destroy it! | dp implementation sortings | Statement | F | Codeforces Round 565 (Div. 3) {1176} | PROGRAMMING | 67598 | 2500 | |
| 2679 | Serge and Dining Room | binary search data structures graph matchings greedy implementation math trees | Statement | C | Codeforces Round 569 (Div. 1) {1179} | PROGRAMMING | Editorial of Round #569 | 2400 | |
| 27925 | Alex and a Rhombus | dp implementation math | Statement | A | Codeforces Round 569 (Div. 2) {1180} | PROGRAMMING | Editorial of Round #569 | 800 | |
| 6715 | Split a Number | greedy implementation strings | Statement | B | Codeforces Round 567 (Div. 2) {1181} | PROGRAMMING | Editorial of Codeforces Round #567 (based on All-Russian olympiad in the name of Keldysh) | 1500 | |
| 2976 | Irrigation | binary search data structures implementation sortings trees two pointers | Statement | D | Codeforces Round 567 (Div. 2) {1181} | PROGRAMMING | Editorial of Codeforces Round #567 (based on All-Russian olympiad in the name of Keldysh) | 2100 | |
| 12128 | Plus from Picture | dfs and similar implementation strings | Statement | B | Codeforces Round 566 (Div. 2) {1182} | PROGRAMMING | 67614 | 1300 | |
| 1059 | Complete Mirror | constructive algorithms dfs and similar dp hashing implementation trees | Statement | D | Codeforces Round 566 (Div. 2) {1182} | PROGRAMMING | 67614 | 2500 | |
| 5609 | Subsequences (easy version) | dp graphs implementation shortest paths | Statement | E | Codeforces Round 570 (Div. 3) {1183} | PROGRAMMING | Tutorial | 2000 | |
| 2760 | Candy Box (hard version) | greedy implementation sortings | Statement | G | Codeforces Round 570 (Div. 3) {1183} | PROGRAMMING | Tutorial | 2100 | |
| 14371 | Email from Polycarp | implementation strings | Statement | B | Codeforces Round 568 (Div. 2) {1185} | PROGRAMMING | Editorial for Codeforces Round #568 (Div. 2) | 1200 | |
| 7244 | Extra Element | implementation math | Statement | D | Codeforces Round 568 (Div. 2) {1185} | PROGRAMMING | Editorial for Codeforces Round #568 (Div. 2) | 1700 | |
| 6629 | Vus the Cossack and Strings | implementation math | Statement | C | Codeforces Round 571 (Div. 2) {1186} | PROGRAMMING | E | 1800 | |
| 801 | Vus the Cossack and a Field | divide and conquer implementation math | Statement | E | Codeforces Round 571 (Div. 2) {1186} | PROGRAMMING | E | 2500 | |
| 13085 | Letters Shop | binary search implementation strings | Statement | B | Educational Codeforces Round 67 (Rated for Div. 2) {1187} | PROGRAMMING | Разбор Educational Codeforces Round 67 | 1300 | |
| 1360 | Add on a Tree: Revolution | constructive algorithms dfs and similar implementation trees | Statement | A2 | Codeforces Round 572 (Div. 1) {1188} | PROGRAMMING | Editorial of Codeforces Round #572 | 2500 | |
| 11218 | Candies! | data structures dp implementation math | Statement | C | Codeforces Round 572 (Div. 2) {1189} | PROGRAMMING | Editorial of Codeforces Round #572 | 1400 | |
| 9872 | Tokitsukaze and Discard Items | implementation two pointers | Statement | A | Codeforces Round 573 (Div. 1) {1190} | PROGRAMMING | E | 1500 | |
| 14779 | From S To T | implementation strings | Statement | C | Educational Codeforces Round 68 (Rated for Div. 2) {1194} | PROGRAMMING | Разбор Educational Codeforces Round 68 | 1300 | |
| 10588 | RGB Substring (hard version) | data structures dp implementation two pointers | Statement | D2 | Codeforces Round 575 (Div. 3) {1196} | PROGRAMMING | Editorial | 1600 | |
| 4484 | White Lines | brute force data structures dp implementation two pointers | Statement | D | Codeforces Round 578 (Div. 2) {1200} | PROGRAMMING | Codeforces Round #578 (Div. 2) Editorial | 1900 | |
| 10128 | Compress Words | brute force hashing implementation string suffix structures strings | Statement | E | Codeforces Round 578 (Div. 2) {1200} | PROGRAMMING | Codeforces Round #578 (Div. 2) Editorial | 2000 | |
| 1250 | Graph Traveler | brute force data structures dfs and similar dp graphs implementation math number theory | Statement | F | Codeforces Round 578 (Div. 2) {1200} | PROGRAMMING | Codeforces Round #578 (Div. 2) Editorial | 2500 | |
| 17278 | Important Exam | implementation strings | Statement | A | Codeforces Round 577 (Div. 2) {1201} | PROGRAMMING | Codeforces Round #577 (Div 2) Editorial | 900 | |
| 2811 | You Are Given a WASD-string... | brute force data structures dp greedy implementation math strings | Statement | C | Educational Codeforces Round 70 (Rated for Div. 2) {1202} | PROGRAMMING | 68972 | 2100 | |
| 667 | You Are Given Some Letters... | binary search implementation math | Statement | F | Educational Codeforces Round 70 (Rated for Div. 2) {1202} | PROGRAMMING | 68972 | 2800 | |
| 25593 | Common Divisors | implementation math | Statement | C | Codeforces Round 579 (Div. 3) {1203} | PROGRAMMING | Codeforces Round #579 (Div. 3) Editorial | 1300 | |
| 8460 | Remove the Substring (hard version) | binary search greedy implementation two pointers | Statement | D2 | Codeforces Round 579 (Div. 3) {1203} | PROGRAMMING | Codeforces Round #579 (Div. 3) Editorial | 1800 | |
| 1303 | Palindromic Paths | implementation interactive | Statement | C | Codeforces Round 580 (Div. 1) {1205} | PROGRAMMING | 69158 | 2500 | |
| 23704 | There Are Two Types Of Burgers | brute force greedy implementation math | Statement | A | Educational Codeforces Round 71 (Rated for Div. 2) {1207} | PROGRAMMING | Educational Codeforces Round 71 Editorial | 700 | |
| 11936 | Uniqueness | binary search brute force implementation two pointers | Statement | B | Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2) {1208} | PROGRAMMING | 69357 | 1500 | |
| 327 | Red Blue Tree | data structures implementation trees | Statement | H | Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2) {1208} | PROGRAMMING | 69357 | 3500 | |
| 8611 | Koala and Lights | implementation math number theory | Statement | B | Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2) {1209} | PROGRAMMING | 69791 | 1300 | |
| 4171 | Into Blocks (easy version) | data structures dsu greedy implementation two pointers | Statement | G1 | Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2) {1209} | PROGRAMMING | 69791 | 2000 | |
| 12987 | Paint the Numbers | greedy implementation math | Statement | A | Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2) {1209} | PROGRAMMING | 69791 | 900 | |
| 153 | kotlinkotlinkotlinkotlin... | *special graphs implementation strings | Statement | F | Kotlin Heroes: Episode 2 {1211} | PROGRAMMING | Kotlin Heroes: Episode 2 Editorial | 2400 | |
| 3174 | Unstable String Sort | data structures dfs and similar dsu graphs greedy implementation strings | Statement | F | Codeforces Round 582 (Div. 3) {1213} | PROGRAMMING | Codeforces Round #582 (Div. 3) Editorial | 2400 | |
| 12342 | Yellow Cards | greedy implementation math | Statement | A | Codeforces Round 585 (Div. 2) {1215} | PROGRAMMING | Codeforces Round #585 Editorial | 1000 | |
| 19963 | Shooting | greedy implementation sortings | Statement | B | Codeforces Round 587 (Div. 3) {1216} | PROGRAMMING | Codeforces Round #587 (Div. 3) Editorial | 1000 | |
| 2134 | Sum Queries? | data structures greedy implementation math | Statement | E | Educational Codeforces Round 72 (Rated for Div. 2) {1217} | PROGRAMMING | Educational Codeforces Round 72 Editorial | 2300 | |
| 2505 | Periodic integer number | implementation strings | Statement | C | Bubble Cup 12 - Finals [Online Mirror, unrated, Div. 2] {1219} | PROGRAMMING | E | 1700 | |
| 33244 | Cards | implementation sortings strings | Statement | A | Codeforces Round 586 (Div. 1 + Div. 2) {1220} | PROGRAMMING | Codeforces Round #586 Editorial | 600 | |
| 12388 | TV Subscriptions (Hard Version) | implementation two pointers | Statement | B2 | Technocup 2020 - Elimination Round 2 {1225} | PROGRAMMING | 70898 | 1300 | |
| 11971 | Filling the Grid | implementation math | Statement | B | Codeforces Round 589 (Div. 2) {1228} | PROGRAMMING | 70162 | 1300 | |
| 625 | One Node is Gone | constructive algorithms implementation trees | Statement | F | Codeforces Round 589 (Div. 2) {1228} | PROGRAMMING | 70162 | 2700 | |
| 22658 | Balanced Rating Changes | implementation math | Statement | A | Codeforces Global Round 5 {1237} | PROGRAMMING | T | 1100 | |
| 4612 | Balanced Removals (Harder) | binary search constructive algorithms divide and conquer greedy implementation sortings | Statement | C2 | Codeforces Global Round 5 {1237} | PROGRAMMING | T | 1900 | |
| 8448 | Paint the Tree | brute force constructive algorithms dp graphs implementation trees | Statement | D | Codeforces Round 592 (Div. 2) {1244} | PROGRAMMING | Codeforces Round #592 (Div. 2) Tutorial | 1700 | |
| 17455 | Dominated Subarray | greedy implementation sortings strings two pointers | Statement | C | Educational Codeforces Round 76 (Rated for Div. 2) {1257} | PROGRAMMING | Educational Codeforces Round 76 Editorial | 1200 | |
| 13704 | Beautiful Numbers | data structures implementation math two pointers | Statement | B | Codeforces Round 604 (Div. 2) {1265} | PROGRAMMING | Codeforces Round #604 Editorial | 1300 | |
| 3980 | Decreasing Debts | constructive algorithms data structures graphs greedy implementation math two pointers | Statement | D | Codeforces Global Round 6 {1266} | PROGRAMMING | Codeforces Global Round 6 Editorial | 2000 | |
| 3136 | Just Arrange the Icons | greedy implementation math | Statement | J | 2019-2020 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {1267} | PROGRAMMING | nerc-2019-tutorial.pdf | 1900 | |
| 1081 | Intriguing Selection | brute force constructive algorithms implementation interactive sortings | Statement | I | 2019-2020 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {1267} | PROGRAMMING | nerc-2019-tutorial.pdf | 2700 | |
| 9214 | Long Beautiful Integer | constructive algorithms greedy implementation strings | Statement | A | Codeforces Round 609 (Div. 1) {1268} | PROGRAMMING | Codeforces Round #609 — Editorial | 1700 | |
| 3496 | Portals | data structures dp greedy implementation sortings | Statement | D | Codeforces Round 608 (Div. 2) {1271} | PROGRAMMING | 72247 | 2100 | |
| 3290 | Let's Play the Words? | data structures hashing implementation math | Statement | D | Codeforces Round 606 (Div. 2, based on Technocup 2020 Elimination Round 4) {1277} | PROGRAMMING | Technocup 2020 — Elimination Round 4 + Codeforces Round 606: Editorial | 1800 | |
| 18638 | Shuffle Hashing | brute force implementation strings | Statement | A | Educational Codeforces Round 78 (Rated for Div. 2) {1278} | PROGRAMMING | Educational Codeforces Round 78 Editorial | 1000 | |
| 5912 | Cut and Paste | implementation math | Statement | A | Codeforces Round 607 (Div. 1) {1280} | PROGRAMMING | Codeforces Round #607 Editorial | 1700 | |
| 4230 | Beingawesomeism | implementation math | Statement | B | Codeforces Round 607 (Div. 1) {1280} | PROGRAMMING | Codeforces Round #607 Editorial | 1800 | |
| 15587 | Temporarily unavailable | implementation math | Statement | A | Codeforces Round 610 (Div. 2) {1282} | PROGRAMMING | 72461 | 900 | |
| 11625 | New Year and Ascent Sequence | binary search combinatorics data structures dp implementation sortings | Statement | B | Hello 2020 {1284} | PROGRAMMING | Hello 2020 Editorial | 1500 | |
| 18635 | New Year and Naming | implementation strings | Statement | A | Hello 2020 {1284} | PROGRAMMING | Hello 2020 Editorial | 600 | |
| 543 | Harry The Potter | brute force constructive algorithms dp fft implementation math | Statement | F | Codeforces Round 612 (Div. 1) {1286} | PROGRAMMING | Codeforces Round #612 - Editorial | 3200 | |
| 23180 | Collecting Packages | implementation sortings | Statement | B | Codeforces Round 615 (Div. 3) {1294} | PROGRAMMING | Codeforces Round #615 (Div. 3) Editorial | 1200 | |
| 12885 | MEX maximizing | data structures greedy implementation math | Statement | D | Codeforces Round 615 (Div. 3) {1294} | PROGRAMMING | Codeforces Round #615 (Div. 3) Editorial | 1600 | |
| 5289 | Obtain a Permutation | greedy implementation math | Statement | E | Codeforces Round 615 (Div. 3) {1294} | PROGRAMMING | Codeforces Round #615 (Div. 3) Editorial | 2000 | |
| 127 | Movie Fan | *special data structures greedy implementation sortings | Statement | F | Kotlin Heroes: Episode 3 {1297} | PROGRAMMING | Kotlin Heroes: Episode 3 Editorial | ||
| 433 | Cartoons | *special implementation sortings | Statement | B | Kotlin Heroes: Episode 3 {1297} | PROGRAMMING | Kotlin Heroes: Episode 3 Editorial | ||
| 26498 | Assigning to Classes | greedy implementation sortings | Statement | B | Codeforces Round 618 (Div. 2) {1300} | PROGRAMMING | 750.0 | Codeforces Round #618 Editorial | 1000 |
| 21833 | Non-zero | implementation math | Statement | A | Codeforces Round 618 (Div. 2) {1300} | PROGRAMMING | 500.0 | Codeforces Round #618 Editorial | 700 |
| 1571 | Super Jaber | dfs and similar graphs implementation shortest paths | Statement | F | Codeforces Round 619 (Div. 2) {1301} | PROGRAMMING | 2500.0 | Codeforces Round #619 (Div. 2) Editorial | 2700 |
| 20281 | Three Strings | implementation strings | Statement | A | Codeforces Round 619 (Div. 2) {1301} | PROGRAMMING | 500.0 | Codeforces Round #619 (Div. 2) Editorial | 800 |
| 37603 | Erasing Zeroes | implementation strings | Statement | A | Educational Codeforces Round 82 (Rated for Div. 2) {1303} | PROGRAMMING | Educational Codeforces Round 82 | 700 | |
| 18992 | Longest Palindrome | brute force constructive algorithms greedy implementation strings | Statement | B | Codeforces Round 620 (Div. 2) {1304} | PROGRAMMING | 1000.0 | Codeforces Round #620 (Div. 2) Editorial | 1100 |
| 18113 | Air Conditioner | dp greedy implementation sortings two pointers | Statement | C | Codeforces Round 620 (Div. 2) {1304} | PROGRAMMING | 1500.0 | Codeforces Round #620 (Div. 2) Editorial | 1500 |
| 3306 | Kuroni and the Score Distribution | constructive algorithms greedy implementation math | Statement | E | Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!) {1305} | PROGRAMMING | 2000.0 | Ozon Tech Challenge 2020 Editorial | 2100 |
| 1475 | Cow and Treats | binary search combinatorics dp greedy implementation math | Statement | E | Codeforces Round 621 (Div. 1 + Div. 2) {1307} | PROGRAMMING | 2500.0 | Codeforces Round #621 (Div. 1 + Div. 2) Editorial | 2400 |
| 5040 | Moving Points | data structures divide and conquer implementation sortings | Statement | F | Codeforces Round 624 (Div. 3) {1311} | PROGRAMMING | 74224 | 2100 | |
| 46982 | Add Odd or Subtract Even | greedy implementation math | Statement | A | Codeforces Round 624 (Div. 3) {1311} | PROGRAMMING | 74224 | 700 | |
| 18697 | Adding Powers | bitmasks greedy implementation math number theory ternary search | Statement | C | Educational Codeforces Round 83 (Rated for Div. 2) {1312} | PROGRAMMING | 74640 | ||
| 7086 | Different Rules | binary search constructive algorithms greedy implementation math | Statement | B | Codeforces Round 622 (Div. 2) {1313} | PROGRAMMING | 1000.0 | Editorial | 1700 |
| 11873 | String Modification | brute force constructive algorithms implementation sortings strings | Statement | B | CodeCraft-20 (Div. 2) {1316} | PROGRAMMING | 1000.0 | Codecraft-20 (Div.2) Editorial | 1400 |
| 27568 | Yet Another Tetris Problem | implementation number theory | Statement | A | Codeforces Round 627 (Div. 3) {1324} | PROGRAMMING | Codeforces Round #627 (Div. 3) Editorial | ||
| 25507 | Maximums | implementation math | Statement | B | Codeforces Global Round 7 {1326} | PROGRAMMING | 1000.0 | 74961 | 900 |
| 32735 | K-th Beautiful String | combinatorics implementation math | Statement | B | Codeforces Round 629 (Div. 3) {1328} | PROGRAMMING | 75246 | 1300 | |
| 9827 | Dreamoon Likes Coloring | constructive algorithms greedy implementation math | Statement | A | Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov! {1329} | PROGRAMMING | 500.0 | Codeforces Round #631 Editorial | 1800 |
| 1840 | Drazil Likes Heap | constructive algorithms data structures greedy implementation sortings | Statement | C | Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov! {1329} | PROGRAMMING | 1500.0 | Codeforces Round #631 Editorial | 2400 |
| 14669 | Dreamoon Likes Permutations | implementation math | Statement | B | Codeforces Round 631 (Div. 2) - Thanks, Denis aramis Shitov! {1330} | PROGRAMMING | 1000.0 | Codeforces Round #631 Editorial | 1400 |
| 19926 | Exercising Walk | greedy implementation math | Statement | A | Codeforces Round 630 (Div. 2) {1332} | PROGRAMMING | 500.0 | Codeforces Round #630 Editorial | 1200 |
| 22138 | K-Complete Word | dfs and similar dsu greedy implementation strings | Statement | C | Codeforces Round 630 (Div. 2) {1332} | PROGRAMMING | 1250.0 | Codeforces Round #630 Editorial | 1500 |
| 13732 | Eugene and an array | binary search data structures hashing implementation two pointers | Statement | C | Codeforces Round 632 (Div. 2) {1333} | PROGRAMMING | 1250.0 | Codeforces Round #632 (Div. 2) editorial | |
| 4190 | Challenges in school №41 | brute force constructive algorithms games graphs greedy implementation sortings | Statement | D | Codeforces Round 632 (Div. 2) {1333} | PROGRAMMING | 1750.0 | Codeforces Round #632 (Div. 2) editorial |