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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 5385 | Hometask | brute force constructive algorithms greedy math | Statement | B | Codeforces Round 131 (Div. 2) {214} | PROGRAMMING | Codeforces Round #131 Tutorial | 1600 | |
| 5674 | Vasya and Robot | brute force greedy math | Statement | A | Codeforces Round 206 (Div. 1) {354} | PROGRAMMING | Codeforces Round #206 — Editorial | 1600 | |
| 10927 | Bear and Strings | brute force greedy implementation math strings | Statement | B | Codeforces Round 226 (Div. 2) {385} | PROGRAMMING | Codeforces Round #226 (Div. 2) — Editorial | 1300 | |
| 3753 | MUH and House of Cards | binary search brute force greedy math | Statement | C | Codeforces Round 269 (Div. 2) {471} | PROGRAMMING | Codeforces Round #269 Editorial | 1700 | |
| 2684 | Om Nom and Candies | brute force greedy math | Statement | C | ZeptoLab Code Rush 2015 {526} | PROGRAMMING | ZeptoLab Code Rush 2015 — Editorial | 2000 | |
| 6163 | Tourist's Notes | binary search brute force greedy implementation math | Statement | C | Codeforces Round 300 {538} | PROGRAMMING | Codeforces Round #300 Editorial (+challenges) | 1600 | |
| 2784 | Mike and Frog | brute force greedy implementation math | Statement | A | Codeforces Round 305 (Div. 1) {547} | PROGRAMMING | Codeforces Round #305 Editorial | 1900 | |
| 5887 | Vanya and Scales | brute force dp greedy math meet-in-the-middle number theory | Statement | C | Codeforces Round 308 (Div. 2) {552} | PROGRAMMING | Codeforces #308 (Div. 2) Editorial | 1800 | |
| 1762 | Vanya and Brackets | brute force dp expression parsing greedy implementation strings | Statement | E | Codeforces Round 308 (Div. 2) {552} | PROGRAMMING | Codeforces #308 (Div. 2) Editorial | 2300 | |
| 4231 | Arthur and Table | brute force data structures dp greedy math sortings | Statement | C | Codeforces Round 311 (Div. 2) {557} | PROGRAMMING | Codeforces Round #311 (Div.2) Editorial | 1900 | |
| 4231 | Amr and Chemistry | brute force graphs greedy math shortest paths | Statement | C | Codeforces Round 312 (Div. 2) {558} | PROGRAMMING | Codeforces Round #312 (Div. 2) Editorial | 2000 | |
| 4627 | Block Towers | brute force greedy math number theory | Statement | C | 8VC Venture Cup 2016 - Elimination Round {626} | PROGRAMMING | 23522 | 1600 | |
| 18801 | Holidays | brute force constructive algorithms greedy math | Statement | A | Codeforces Round 350 (Div. 2) {670} | PROGRAMMING | Codeforces Round #350 (Div.2) Editorial | 1000 | |
| 4262 | Batch Sort | brute force greedy implementation math | Statement | B | Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined) {724} | PROGRAMMING | Tutorial | 1500 | |
| 32217 | Anton and Digits | brute force greedy implementation math | Statement | B | Codeforces Round 379 (Div. 2) {734} | PROGRAMMING | Tutorial of Codeforces Round #379 (Div. 2) | 800 | |
| 3297 | My pretty girl Noora | brute force dp greedy math number theory | Statement | D | Codeforces Round 422 (Div. 2) {822} | PROGRAMMING | Codeforces Round #422 (Div. 2) Editorial | 1800 | |
| 522 | Ever-Hungry Krakozyabra | brute force combinatorics greedy math | Statement | C | Codeforces Round 426 (Div. 1) {833} | PROGRAMMING | Codeforces Round #426 Editorial | 2600 | |
| 14893 | Pride | brute force dp greedy math number theory | Statement | A | Codeforces Round 446 (Div. 1) {891} | PROGRAMMING | Codeforces Round #446 Editorial | 1600 | |
| 13150 | 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 | |
| 1791 | Guard Duty (easy) | brute force geometry greedy math | Statement | E1 | Helvetic Coding Contest 2018 online mirror (teams allowed, unrated) {958} | PROGRAMMING | helvetic-coding-contest-2018-editorial.pdf | 1800 | |
| 2233 | Kuro and GCD and XOR and SUM | binary search bitmasks brute force data structures dp dsu greedy math number theory strings trees | Statement | D | Codeforces Round 482 (Div. 2) {979} | PROGRAMMING | 1750.0 | Codeforces Round #482 (Div. 2) Editorial | 2200 |
| 405 | Concise and clear | brute force greedy implementation math | Statement | F | Codeforces Round 491 (Div. 2) {991} | PROGRAMMING | 60181 | 2800 | |
| 2071 | Leaving the Bar | brute force data structures geometry greedy math sortings | Statement | C | Codeforces Round 492 (Div. 1) [Thanks, uDebug!] {995} | PROGRAMMING | Editorial for Codeforces Round #492 [Thanks u-Debug!] | 2200 | |
| 8684 | Convert to Ones | brute force greedy implementation math | Statement | A | Codeforces Round 493 (Div. 1) {997} | PROGRAMMING | 60357 | 1500 | |
| 3165 | Roman Digits | brute force combinatorics dp greedy math | Statement | B | Codeforces Round 493 (Div. 1) {997} | PROGRAMMING | 60357 | 2000 | |
| 6715 | Relatively Prime Graph | brute force constructive algorithms graphs greedy math | Statement | D | Educational Codeforces Round 47 (Rated for Div. 2) {1009} | PROGRAMMING | 60630 | 1700 | |
| 8574 | Weakened Common Divisor | brute force greedy number theory | Statement | B | Codeforces Round 505 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1025} | PROGRAMMING | Codeforces Round #505 Editorial | 1600 | |
| 9971 | 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 | |
| 1816 | Nice table | brute force constructive algorithms greedy math | Statement | B | Codeforces Round 530 (Div. 1) {1098} | PROGRAMMING | 64331 | 2300 | |
| 25389 | Divisors of Two Integers | brute force greedy math number theory | Statement | B | Codeforces Round 535 (Div. 3) {1108} | PROGRAMMING | 64751 | 1100 | |
| 12738 | Nice Garland | brute force greedy math | Statement | C | Codeforces Round 535 (Div. 3) {1108} | PROGRAMMING | 64751 | 1300 | |
| 4213 | Circus | brute force greedy math strings | Statement | B | Codeforces Round 545 (Div. 2) {1138} | PROGRAMMING | Codeforces Round #545 – Editorial | 1700 | |
| 3358 | Minimum Possible LCM | brute force greedy math number theory | Statement | G | Codeforces Round 552 (Div. 3) {1154} | PROGRAMMING | Codeforces Round #552 (Div. 3) Editorial | 2400 | |
| 2301 | Cute Sequences | binary search brute force greedy math | Statement | D | Codeforces Round 561 (Div. 2) {1166} | PROGRAMMING | Codeforces Round #561 (Div. 2) Editorial | 2100 | |
| 7853 | Exam in BerSU (hard version) | brute force data structures greedy math | Statement | C2 | Codeforces Round 568 (Div. 2) {1185} | PROGRAMMING | Editorial for Codeforces Round #568 (Div. 2) | 1700 | |
| 2793 | 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 | |
| 23546 | 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 | |
| 18276 | 2048 Game | brute force greedy math | Statement | A | Educational Codeforces Round 73 (Rated for Div. 2) {1221} | PROGRAMMING | Разбор Educational Codeforces Round 73 | 1000 | |
| 17309 | Stones | brute force greedy math | Statement | A | Codeforces Round 593 (Div. 2) {1236} | PROGRAMMING | 70654 | 800 | |
| 2819 | The Feast and the Bus | brute force constructive algorithms greedy math | Statement | B | 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} | PROGRAMMING | 1900 | ||
| 15716 | Suits | brute force greedy math | Statement | A | Codeforces Round 608 (Div. 2) {1271} | PROGRAMMING | 72247 | 900 | |
| 22206 | Three Friends | brute force greedy math sortings | Statement | A | Codeforces Round 605 (Div. 3) {1272} | PROGRAMMING | Codeforces Round #605 (Div. 3) Editorial | 900 | |
| 1794 | Beautiful Rectangle | brute force combinatorics constructive algorithms data structures greedy math | Statement | C | Codeforces Round 606 (Div. 1, based on Technocup 2020 Elimination Round 4) {1276} | PROGRAMMING | Technocup 2020 — Elimination Round 4 + Codeforces Round 606: Editorial | 2300 | |
| 12653 | Anu Has a Function | brute force greedy math | Statement | A | Codeforces Round 618 (Div. 1) {1299} | PROGRAMMING | 500.0 | Codeforces Round #618 Editorial | 1500 |
| 19273 | Composite Coloring | brute force constructive algorithms greedy math number theory | Statement | B | Codeforces Round 630 (Div. 2) {1332} | PROGRAMMING | 1000.0 | Codeforces Round #630 Editorial | 1500 |
| 4165 | 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 | |
| 18117 | Circle of Monsters | brute force constructive algorithms greedy math | Statement | C | Educational Codeforces Round 85 (Rated for Div. 2) {1334} | PROGRAMMING | Educational Codeforces Round 85 Editorial | ||
| 3482 | Perfect Triples | bitmasks brute force constructive algorithms divide and conquer greedy implementation math | Statement | C | Codeforces Round 633 (Div. 1) {1338} | PROGRAMMING | 1500.0 | Editorial | |
| 31919 | Berland Poker | brute force greedy math | Statement | A | Educational Codeforces Round 88 (Rated for Div. 2) {1359} | PROGRAMMING | Educational Codeforces Round 88 Editorial | 1000 | |
| 21687 | Codeforces Subsequences | brute force constructive algorithms greedy math strings | Statement | B | Codeforces Global Round 8 {1368} | PROGRAMMING | 1000.0 | Codeforces Global Round 8: editorial | |
| 46988 | C+= | brute force greedy math | Statement | A | Codeforces Global Round 8 {1368} | PROGRAMMING | 500.0 | Codeforces Global Round 8: editorial | |
| 66256 | Maximum GCD | brute force greedy implementation number theory | Statement | A | Codeforces Round 651 (Div. 2) {1370} | PROGRAMMING | 500.0 | Editorial — Codeforces Round #651 | |
| 2985 | Sum of Digits | brute force constructive algorithms dp greedy math number theory | Statement | E | Educational Codeforces Round 90 (Rated for Div. 2) {1373} | PROGRAMMING | Educational Codeforces Round 90 Editorial | ||
| 5058 | Berserk And Fireball | brute force greedy math | Statement | D | Educational Codeforces Round 91 (Rated for Div. 2) {1380} | PROGRAMMING | Educational Codeforces Round 91 Editorial | ||
| 4579 | Segment Intersections | binary search brute force greedy implementation math | Statement | D | Educational Codeforces Round 92 (Rated for Div. 2) {1389} | PROGRAMMING | 80809 | ||
| 11743 | RPG Protagonist | binary search brute force greedy math | Statement | B | Educational Codeforces Round 94 (Rated for Div. 2) {1400} | PROGRAMMING | 81942 | ||
| 18197 | Big Vova | brute force greedy math number theory | Statement | B | Codeforces Round 669 (Div. 2) {1407} | PROGRAMMING | 1000.0 | Codeforces Round #669 Editorial | |
| 31196 | Minimum Product | brute force greedy math | Statement | B | Codeforces Round 667 (Div. 3) {1409} | PROGRAMMING | Codeforces Round #667 (Div. 3) Editorial | ||
| 17081 | Stairs | brute force constructive algorithms greedy implementation math two pointers | Statement | B | Codeforces Round 671 (Div. 2) {1419} | PROGRAMMING | 750.0 | Codeforces Round #671 Editorial | |
| 8191 | Rock, Paper, Scissors | brute force constructive algorithms flows greedy math | Statement | E | Codeforces Round 674 (Div. 3) {1426} | PROGRAMMING | 83120 | 1800 | |
| 18503 | Marketing Scheme | brute force constructive algorithms greedy math | Statement | A | Educational Codeforces Round 97 (Rated for Div. 2) {1437} | PROGRAMMING | 84149 | ||
| 4468 | Checkpoints | brute force constructive algorithms greedy math probabilities | Statement | D | Codeforces Round 688 (Div. 2) {1453} | PROGRAMMING | 2000.0 | Codeforces Round #688 (Div. 2) Editorial | |
| 1679 | Four Points | brute force constructive algorithms flows geometry greedy math ternary search | Statement | E | Educational Codeforces Round 99 (Rated for Div. 2) {1455} | PROGRAMMING | 85186 | ||
| 2238 | Water Level | brute force graphs greedy implementation math | Statement | E | Codeforces Round 689 (Div. 2, based on Zed Code Competition) {1461} | PROGRAMMING | 2250.0 | Codeforces Round #689 (Div. 2). Editorial | |
| 20006 | Strange List | brute force greedy implementation math | Statement | B | Codeforces Round 694 (Div. 2) {1471} | PROGRAMMING | 750.0 | Codeforces Round #694 Editorial | |
| 21748 | Inflation | binary search brute force greedy math | Statement | B | Educational Codeforces Round 103 (Rated for Div. 2) {1476} | PROGRAMMING | 87356 | ||
| 34878 | Add and Divide | brute force greedy math ternary search | Statement | A | Codeforces Round 701 (Div. 2) {1485} | PROGRAMMING | 500.0 | Editorial of Codeforces Round #701 (Div. 2) | 1000 |
| 15541 | Minimum Ties | brute force constructive algorithms dfs and similar graphs greedy implementation math | Statement | C | Educational Codeforces Round 104 (Rated for Div. 2) {1487} | PROGRAMMING | 87873 | ||
| 14288 | Minimal Cost | brute force greedy implementation math | Statement | B | Codeforces Global Round 13 {1491} | PROGRAMMING | 750.0 | Codeforces Global Round 13 Editorial | |
| 34457 | Array Reodering | brute force greedy math number theory sortings | Statement | B | Educational Codeforces Round 110 (Rated for Div. 2) {1535} | PROGRAMMING | 91481 | ||
| 13931 | Cobb | bitmasks brute force greedy math | Statement | B | Codeforces Round 735 (Div. 2) {1554} | PROGRAMMING | 1250.0 | Editorial of Codeforces Round #735 (Div. 2) | 1700 |
| 5403 | Array Stabilization (AND version) | binary search brute force graphs greedy implementation math number theory shortest paths | Statement | F | Codeforces Round 744 (Div. 3) {1579} | PROGRAMMING | Codeforces Round #744 (Div. 3) Editorial | ||
| 29833 | Make Them Equal | brute force greedy math strings | Statement | C | Codeforces Round 747 (Div. 2) {1594} | PROGRAMMING | 1500.0 | 95525 | 1200 |
| 1966 | AmShZ and G.O.A.T. | binary search brute force greedy math | Statement | E | Codeforces Global Round 17 {1610} | PROGRAMMING | 2500.0 | Codeforces Global Round 17 Editorial | |
| 9256 | Menorah | brute force graphs greedy math | Statement | C | Codeforces Global Round 18 {1615} | PROGRAMMING | 1750.0 | Global Round 18 Editorial | |
| 7318 | BA-String | bitmasks brute force dp greedy implementation math shortest paths | Statement | C | Educational Codeforces Round 119 (Rated for Div. 2) {1620} | PROGRAMMING | 98061 | ||
| 17172 | Meximum Array | brute force constructive algorithms greedy math | Statement | A | Codeforces Round 767 (Div. 1) {1628} | PROGRAMMING | 500.0 | 99276 | |
| 14195 | Strange Test | binary search bitmasks brute force greedy math | Statement | C | Codeforces Round 769 (Div. 2) {1632} | PROGRAMMING | 1500.0 | Editorial of Codeforces Round #769 | |
| 15502 | MEX and Array | brute force dp greedy math | Statement | B | Codeforces Global Round 19 {1637} | PROGRAMMING | 1000.0 | Tutorial | |
| 15764 | Make it Increasing | brute force greedy math | Statement | A | Codeforces Round 783 (Div. 1) {1667} | PROGRAMMING | 250.0 | Codeforces Round #783 Editorial | 1300 |
| 26821 | Dolce Vita | binary search brute force greedy math | Statement | C | Educational Codeforces Round 127 (Rated for Div. 2) {1671} | PROGRAMMING | 102181 | ||
| 7794 | Breaking the Wall | binary search brute force constructive algorithms greedy math | Statement | E | Codeforces Round 786 (Div. 3) {1674} | PROGRAMMING | 102482 | ||
| 35285 | Most Similar Words | brute force greedy implementation implementation math strings | Statement | C | Codeforces Round 790 (Div. 4) {1676} | PROGRAMMING | Codeforces Round #790 (Div. 4) Editorial | ||
| 42668 | AvtoBus | brute force greedy math number theory | Statement | A | Codeforces Round 791 (Div. 2) {1679} | PROGRAMMING | 500.0 | Codeforces Round #791 (Div. 2) Editorial | |
| 1377 | Dog Walking | brute force greedy math | Statement | D | Educational Codeforces Round 128 (Rated for Div. 2) {1680} | PROGRAMMING | 102852 | ||
| 17361 | Sum of Substrings | brute force constructive algorithms greedy math strings | Statement | C | CodeCraft-22 and Codeforces Round 795 (Div. 2) {1691} | PROGRAMMING | 1250.0 | Editorial for CodeCraft-22 and Codeforces Round #795 (Div. 2) | |
| 214 | Maximum Product? | brute force combinatorics dp greedy math two pointers | Statement | H | Codeforces Global Round 21 {1696} | PROGRAMMING | 4000.0 | Editorial of Codeforces Global Round 21 | |
| 12948 | Good Key, Bad Key | bitmasks brute force dp greedy math | Statement | G | Codeforces Round 806 (Div. 4) {1703} | PROGRAMMING | 104786 | ||
| 3527 | Fibonacci Strings | brute force data structures greedy implementation math number theory | Statement | B | Codeforces Round 814 (Div. 1) {1718} | PROGRAMMING | 1250.0 | Codeforces Round #814 (Div. 1, Div. 2) Editorial | |
| 1882 | Tonya and Burenka-179 | brute force data structures greedy math number theory | Statement | C | Codeforces Round 814 (Div. 1) {1718} | PROGRAMMING | 1250.0 | Codeforces Round #814 (Div. 1, Div. 2) Editorial | |
| 7787 | Maximum AND | bitmasks brute force divide and conquer greedy math sortings | Statement | D | Educational Codeforces Round 134 (Rated for Div. 2) {1721} | PROGRAMMING | 106416 | ||
| 2065 | Red-Black Pepper | binary search brute force greedy math number theory sortings ternary search | Statement | E | Educational Codeforces Round 135 (Rated for Div. 2) {1728} | PROGRAMMING | 106805 | ||
| 19507 | Minimize the Thickness | brute force greedy math two pointers | Statement | C | Codeforces Round 826 (Div. 3) {1741} | PROGRAMMING | 107908 | ||
| 13585 | Orray | bitmasks brute force greedy math | Statement | G | Codeforces Round 827 (Div. 4) {1742} | PROGRAMMING | 107962 | ||
| 10931 | Lucky Chains | brute force dp greedy math number theory | Statement | D | Educational Codeforces Round 139 (Rated for Div. 2) {1766} | PROGRAMMING | 110066 | ||
| 913 | Laboratory on Pluto | brute force combinatorics dp fft greedy math | Statement | F | Codeforces Round 843 (Div. 2) {1775} | PROGRAMMING | 3000.0 | Codeforces Round #843 (Div. 2) Editorial | |
| 27237 | GCD Partition | brute force greedy math number theory | Statement | B | Codeforces Round 846 (Div. 2) {1780} | PROGRAMMING | 1000.0 | 111841 | |
| 4116 | Timofey and Black-White Tree | brute force dfs and similar divide and conquer graphs greedy math shortest paths trees | Statement | F | Codeforces Round 847 (Div. 3) {1790} | PROGRAMMING | 111948 | ||
| 17027 | Min Max Sort | binary search brute force greedy math | Statement | C | Educational Codeforces Round 142 (Rated for Div. 2) {1792} | PROGRAMMING | 111835 | ||
| 12911 | Equalize by Divide | brute force constructive algorithms greedy math | Statement | B | Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} | PROGRAMMING | 1000.0 | Codeforces Round #854 Editorial | |
| 13973 | Pull Your Luck | brute force greedy math number theory | Statement | C | Nebius Welcome Round (Div. 1 + Div. 2) {1804} | PROGRAMMING | 1000.0 | Nebius Welcome Round Editorial | |
| 5586 | Black Cells | binary search brute force greedy math | Statement | D | Educational Codeforces Round 147 (Rated for Div. 2) {1821} | PROGRAMMING | 115296 | ||
| 1116 | Lottery | binary search brute force greedy math sortings two pointers | Statement | B | Codeforces Round 880 (Div. 1) {1835} | PROGRAMMING | 1250.0 | Codeforces Round 880 Editorial | |
| 9218 | Ranom Numbers | brute force dp greedy math strings | Statement | C | Educational Codeforces Round 150 (Rated for Div. 2) {1841} | PROGRAMMING | 117262 | ||
| 9155 | Rating System | brute force data structures dp greedy implementation math | Statement | D | Educational Codeforces Round 151 (Rated for Div. 2) {1845} | PROGRAMMING | 117791 | ||
| 47748 | Longest Divisors Interval | brute force combinatorics greedy math number theory | Statement | B | Codeforces Round 889 (Div. 2) {1855} | PROGRAMMING | 1000.0 | Editorial of Codeforces Round 889 (Div. 1 + Div. 2) | |
| 13136 | The Walkway | brute force greedy implementation math number theory | Statement | B | Codeforces Round 893 (Div. 2) {1858} | PROGRAMMING | 1250.0 | Codeforces Round #893 (Div. 2) Editorial | 1500 |
| 18839 | Another Permutation Problem | brute force dp greedy math | Statement | C | Codeforces Round 892 (Div. 2) {1859} | PROGRAMMING | 1250.0 | Video solutions from Geothermal. | |
| 19136 | Fancy Coins | binary search brute force greedy math | Statement | B | Educational Codeforces Round 153 (Rated for Div. 2) {1860} | PROGRAMMING | Educational Codeforces Round 153 Editorial | ||
| 63987 | Good Kid | brute force brute force brute force greedy math | Statement | B | Codeforces Round 898 (Div. 4) {1873} | PROGRAMMING | 120634 | ||
| 19233 | Simple Design | brute force constructive algorithms greedy math | Statement | A | Codeforces Round 904 (Div. 2) {1884} | PROGRAMMING | 500.0 | Codeforces Round #904 (Div. 2) Editorial | |
| 1111 | Brukhovich and Exams | brute force greedy math sortings | Statement | E | Codeforces Round 907 (Div. 2) {1891} | PROGRAMMING | 2000.0 | ||
| 1902 | Infinite Card Game | brute force dfs and similar games graphs greedy sortings | Statement | E | Educational Codeforces Round 157 (Rated for Div. 2) {1895} | PROGRAMMING | Educational Codeforces Round 157 Editorial | ||
| 17441 | Insert and Equalize | brute force constructive algorithms greedy math number theory | Statement | C | Educational Codeforces Round 159 (Rated for Div. 2) {1902} | PROGRAMMING | Educational Codeforces Round 159 Editorial | ||
| 12559 | Watering an Array | brute force greedy implementation math | Statement | C | Codeforces Round 917 (Div. 2) {1917} | PROGRAMMING | 1500.0 | Editorial of Codeforces Round 917 (Div. 2) | |
| 29782 | Satisfying Constraints | brute force greedy math schedules | Statement | A | Codeforces Round 919 (Div. 2) {1920} | PROGRAMMING | 500.0 | Editorial for Codeforces Round #919 (Div. 2) | |
| 23483 | A Balanced Problemset? | brute force greedy math number theory | Statement | B | Codeforces Round 921 (Div. 2) {1925} | PROGRAMMING | 1000.0 | Codeforces Round 921 (Div. 1, Div. 2) Editorial | |
| 31892 | Choose the Different Ones! | brute force greedy math | Statement | C | Codeforces Round 923 (Div. 3) {1927} | PROGRAMMING | 125597 | ||
| 5239 | Lonely Mountain Dungeons | binary search brute force data structures greedy math ternary search | Statement | D | Codeforces Round 924 (Div. 2) {1928} | PROGRAMMING | 1750.0 | Codeforces Round 924 Editorial | |
| 17527 | Sasha and the Casino | binary search brute force dp games greedy math | Statement | C | Codeforces Round 926 (Div. 2) {1929} | PROGRAMMING | 1500.0 | Codeforces Round #926 (Div. 2) Editorial. | |
| 4918 | Sum over all Substrings (Easy Version) | brute force dp greedy strings | Statement | D1 | think-cell Round 1 {1930} | PROGRAMMING | 1250.0 | think-cell Round 1 Editorial | |
| 34287 | Make Equal Again | brute force greedy math | Statement | C | Codeforces Round 925 (Div. 3) {1931} | PROGRAMMING | 125878 | ||
| 22339 | Yet Another Coin Problem | brute force dp greedy math | Statement | B | Codeforces Round 931 (Div. 2) {1934} | PROGRAMMING | 1000.0 | Tutorial | |
| 4582 | No Palindromes | brute force constructive algorithms greedy hashing implementation strings | Statement | E | Codeforces Global Round 25 {1951} | PROGRAMMING | 2250.0 | Codeforces Global Round 25 Editorial | |
| 17627 | Permutation Game | brute force dfs and similar games graphs greedy math | Statement | D | Codeforces Round 943 (Div. 3) {1968} | PROGRAMMING | 129096 | 1300 | |
| 21274 | 378QAQ and Mocha's Array | brute force greedy math sortings | Statement | B | Codeforces Round 947 (Div. 1 + Div. 2) {1975} | PROGRAMMING | 500.0 | editorial_zh.pdf | 1000 |
| 8146 | Nikita and LCM | brute force data structures dp greedy math number theory sortings | Statement | C | Codeforces Round 948 (Div. 2) {1977} | PROGRAMMING | 1750.0 | 129858 | 1900 |
| 24356 | Turtle and Piggy Are Playing a Game | brute force greedy math | Statement | A | Codeforces Round 949 (Div. 2) {1981} | PROGRAMMING | 500.0 | Simplified Chinese Tutorial | |
| 27272 | Split the Multiset | brute force dp greedy math | Statement | A | Codeforces Round 958 (Div. 2) {1988} | PROGRAMMING | 500.0 | Editorial of Codeforces Round 958 (Div. 2) | |
| 7219 | Smithing Skill | brute force dp greedy math sortings two pointers | Statement | D | Educational Codeforces Round 167 (Rated for Div. 2) {1989} | PROGRAMMING | Educational Codeforces Round 167 Editorial | ||
| 14832 | Mad MAD Sum | brute force greedy math | Statement | C | Codeforces Round 960 (Div. 2) {1990} | PROGRAMMING | 1500.0 | Video Tutorial | |
| 2809 | Triangle Formation | brute force greedy math sortings | Statement | F | Pinely Round 4 (Div. 1 + Div. 2) {1991} | PROGRAMMING | 2500.0 | Video Tutorial | |
| 50012 | Only Pluses | brute force constructive algorithms greedy math sortings | Statement | A | Codeforces Round 957 (Div. 3) {1992} | PROGRAMMING | Shayan's Video Tutorial | ||
| 10420 | Squaring | brute force constructive algorithms data structures greedy implementation math number theory | Statement | C | Codeforces Round 961 (Div. 2) {1995} | PROGRAMMING | 1750.0 | Video Tutorial | |
| 26542 | Diagonals | brute force greedy implementation math | Statement | A | Codeforces Round 961 (Div. 2) {1995} | PROGRAMMING | 500.0 | Video Tutorial | |
| 2304 | Eliminating Balls With Merging (Easy Version) | binary search brute force data structures divide and conquer dp greedy math | Statement | E1 | Codeforces Round 965 (Div. 2) {1998} | PROGRAMMING | 1750.0 | Video Tutorial | |
| 17959 | Black Circles | brute force constructive algorithms geometry greedy math | Statement | C | EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) {2002} | PROGRAMMING | 1000.0 | EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) Editorial | |
| 1436 | Make a Palindrome | brute force data structures dp greedy math | Statement | F | Educational Codeforces Round 169 (Rated for Div. 2) {2004} | PROGRAMMING | Educational Codeforces Round 169 Editorial | ||
| 6782 | Sakurako's Task | binary search brute force greedy math number theory | Statement | G | Codeforces Round 970 (Div. 3) {2008} | PROGRAMMING | Codeforces Round 970 (Div. 3) Editorial | ||
| 3653 | Sakurako's Test | binary search brute force greedy math number theory | Statement | H | Codeforces Round 970 (Div. 3) {2008} | PROGRAMMING | Codeforces Round 970 (Div. 3) Editorial | ||
| 42256 | Sakurako's Exam | brute force constructive algorithms greedy math | Statement | A | Codeforces Round 970 (Div. 3) {2008} | PROGRAMMING | Codeforces Round 970 (Div. 3) Editorial | ||
| 4364 | Prefix GCD | brute force dp greedy math number theory | Statement | E | Codeforces Round 973 (Div. 2) {2013} | PROGRAMMING | 2500.0 | 134298 | |
| 12828 | Cards Partition | brute force greedy implementation math | Statement | A | Codeforces Round 975 (Div. 1) {2018} | PROGRAMMING | 500.0 | Editorial of Codeforces Round 975 (Div. 1, Div. 2) | |
| 1959 | Digital Village (Easy Version) | brute force data structures dp dsu graphs greedy implementation math shortest paths trees | Statement | E1 | Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} | PROGRAMMING | 1750.0 | Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial | |
| 19132 | Maximize Mex | brute force greedy math number theory | Statement | B | Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} | PROGRAMMING | 750.0 | Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial | |
| 1399 | C+K+S | brute force constructive algorithms dfs and similar graphs greedy hashing math strings | Statement | C | Codeforces Round 980 (Div. 1) {2023} | PROGRAMMING | 1500.0 | 135341 | |
| 3591 | Common Generator | brute force constructive algorithms greedy math number theory | Statement | E | Refact.ai Match 1 (Codeforces Round 985) {2029} | PROGRAMMING | 2500.0 | Refact.ai Match 1 (Codeforces Round 985) Editorial | |
| 14454 | Sakurako, Kosuke, and the Permutation | brute force data structures dfs and similar dsu fft greedy math | Statement | E | Codeforces Round 981 (Div. 3) {2033} | PROGRAMMING | 135520 | ||
| 2048 | Permutations Harmony | brute force combinatorics constructive algorithms greedy hashing implementation math | Statement | E | Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2) {2034} | PROGRAMMING | 2000.0 | Rayan 2024 Selection Round Editorial | |
| 5900 | Yet Another Real Number Problem | binary search brute force data structures dp greedy implementation math two pointers | Statement | D | Codeforces Global Round 27 {2035} | PROGRAMMING | 1500.0 | Codeforces Global Round 27 Editorial | |
| 8317 | Bridge Renovation | brute force dp greedy math | Statement | L | 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2038} | PROGRAMMING | 1400 | ||
| 1958 | Make It Equal | binary search brute force greedy math | Statement | B | 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2038} | PROGRAMMING | 2100 | ||
| 11466 | Sums on Segments | binary search brute force data structures dp greedy math | Statement | C | Educational Codeforces Round 173 (Rated for Div. 2) {2043} | PROGRAMMING | Educational Codeforces Round 173 Editorial | ||
| 27595 | Transfusion | brute force greedy math | Statement | B | Codeforces Round 991 (Div. 3) {2050} | PROGRAMMING | Разбор Codeforces Round 991 (Div. 3) | ||
| 19360 | Digital string maximization | brute force greedy math strings | Statement | D | Codeforces Round 991 (Div. 3) {2050} | PROGRAMMING | Разбор Codeforces Round 991 (Div. 3) | ||
| 12811 | Customer Service | brute force constructive algorithms graph matchings greedy math sortings | Statement | C | Codeforces Round 1002 (Div. 2) {2059} | PROGRAMMING | 1500.0 | 139094 | |
| 19084 | Cost of the Array | brute force constructive algorithms greedy math | Statement | B | Codeforces Round 1002 (Div. 2) {2059} | PROGRAMMING | 1000.0 | 139094 | |
| 2297 | Kevin and Binary String (Easy Version) | binary search brute force data structures dp greedy implementation strings two pointers | Statement | F1 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} | PROGRAMMING | 2000.0 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial | |
| 14926 | Kevin and Geometry | brute force constructive algorithms data structures geometry greedy implementation math two pointers | Statement | B | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} | PROGRAMMING | 1000.0 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial | |
| 11018 | Kevin and Numbers | brute force data structures greedy implementation math | Statement | D | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} | PROGRAMMING | 1500.0 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial | |
| 12990 | Devyatkino | brute force dp greedy math | Statement | C | Codeforces Round 1004 (Div. 2) {2067} | PROGRAMMING | 1250.0 | ||
| 21237 | Perfecto | brute force constructive algorithms greedy math probabilities | Statement | B | Codeforces Round 1007 (Div. 2) {2071} | PROGRAMMING | 1000.0 | Codeforces Round 1007 (Div. 2) Editorial | |
| 17958 | For Wizards, the Exam Is Easy, but I Couldn't Handle It | brute force greedy implementation | Statement | D | Codeforces Round 1006 (Div. 3) {2072} | PROGRAMMING | Codeforces Round 1006 (Div. 3) Editorial | ||
| 5968 | Equalization | bitmasks brute force dp greedy math | Statement | D | Educational Codeforces Round 176 (Rated for Div. 2) {2075} | PROGRAMMING | Educational Codeforces Round 176 Editorial | ||
| 9089 | Arcology On Permafrost | binary search brute force constructive algorithms greedy math | Statement | D | Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2) {2084} | PROGRAMMING | 1750.0 | 141155 | |
| 19329 | Large Array and Segments | binary search brute force dp greedy math | Statement | B | Educational Codeforces Round 177 (Rated for Div. 2) {2086} | PROGRAMMING | Educational Codeforces Round 177 Editorial | ||
| 1557 | Gleb and Boating | brute force constructive algorithms data structures dp graphs greedy math shortest paths | Statement | G | Codeforces Round 1013 (Div. 3) {2091} | PROGRAMMING | Codeforces Round 1013 (Div. 3) Editorial | ||
| 437 | Andryusha and CCB | brute force constructive algorithms greedy math number theory strings | Statement | F | Codeforces Round 1014 (Div. 2) {2092} | PROGRAMMING | 3000.0 | Codeforces Round #1014 (Div. 2) Editorial | |
| 25175 | Common Multiple | brute force greedy math | Statement | A | Codeforces Round 1019 (Div. 2) {2103} | PROGRAMMING | 500.0 | 142149 | |
| 17723 | Card Game | brute force games greedy math | Statement | C | Educational Codeforces Round 178 (Rated for Div. 2) {2104} | PROGRAMMING | Educational Codeforces Round 178 Editorial | ||
| 1452 | Puzzle | brute force constructive algorithms greedy math | Statement | F | Educational Codeforces Round 179 (Rated for Div. 2) {2111} | PROGRAMMING | Educational Codeforces Round 179 Editorial | ||
| 14958 | Come a Little Closer | brute force greedy implementation math | Statement | D | Codeforces Round 1027 (Div. 3) {2114} | PROGRAMMING | 143268 | ||
| 15976 | Gellyfish and Flaming Peony | brute force constructive algorithms dp greedy math number theory shortest paths | Statement | A | Codeforces Round 1028 (Div. 1) {2115} | PROGRAMMING | 500.0 | Codeforces Round 1028 (Div.1, Div.2) Editorial | |
| 906 | Sea, You & copriMe | brute force combinatorics constructive algorithms graphs greedy math number theory | Statement | H | Codeforces Round 1042 (Div. 3) {2131} | PROGRAMMING | Codeforces Round 1042 (Div. 3) Editorial | ||
| 7786 | Chicken Jockey | binary search brute force dp greedy math | Statement | D | Codeforces Round 1044 (Div. 2) {2133} | PROGRAMMING | 2250.0 | Codeforces Round 1044 (Div. 2) Editorial | |
| 23663 | Maximum Even Sum | brute force greedy implementation math | Statement | C | Codeforces Round 1047 (Div. 3) {2137} | PROGRAMMING | Codeforces Round 1047 (Div. 3) Editorial | ||
| 21471 | Strange Machine | binary search brute force greedy implementation | Statement | B | Codeforces Round 1061 (Div. 2) {2156} | PROGRAMMING | 750.0 | Codeforces Round 1061 (Div. 2) Editorial | |
| 556 | Isaac's Queries | brute force constructive algorithms dfs and similar divide and conquer greedy interactive math probabilities | Statement | G | Codeforces Round 1066 (Div. 1 + Div. 2) {2157} | PROGRAMMING | 3000.0 | Codeforces Round 1066 (Div. 1 + Div. 2) Editorial | |
| 26410 | Yes or Yes | brute force greedy strings | Statement | A | Good Bye 2025 {2178} | PROGRAMMING | 500.0 | ||
| 310 | Fuzzy Concatenation (Easy Version) | binary search bitmasks brute force data structures greedy string suffix structures | Statement | E1 | Codeforces Round 1079 (Div. 1) {2196} | PROGRAMMING | 2000.0 | Tutorial | |
| 18407 | Slimes on a Line | brute force greedy math | Statement | A | Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) {2229} | PROGRAMMING | 500.0 | Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) Editorial | |
| 20231 | Omsk Programmers | brute force greedy math | Statement | C | Codeforces Round 1103 (Div. 3) {2236} | PROGRAMMING | 154496 | ||
| 1202 | Product of Closures | bitmasks brute force constructive algorithms dp greedy implementation math | Statement | E | Educational Codeforces Round 192 (Rated for Div. 2) {2242} | PROGRAMMING |