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Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 13455 | Increasing Sequence | constructive algorithms implementation math | Statement | A | Codeforces Beta Round 11 {11} | PROGRAMMING | 1100 | ||
| 3378 | Party | constructive algorithms graphs math | Statement | B | Codeforces Beta Round 23 {23} | PROGRAMMING | Codeforces Beta Round #23 tutorial | 1600 | |
| 4056 | Find Color | constructive algorithms geometry implementation math | Statement | A | Codeforces Beta Round 39 {40} | PROGRAMMING | codeforces #39 | 1300 | |
| 411 | Strange town | constructive algorithms math | Statement | D | Codeforces Beta Round 41 {42} | PROGRAMMING | Solution of task е, Codeforces beta round #41 | 2300 | |
| 1695 | Disposition | constructive algorithms math | Statement | C | Codeforces Beta Round 46 (Div. 2) {49} | PROGRAMMING | 1700 | ||
| 415 | Tetris revisited | constructive algorithms graph matchings greedy math | Statement | B | Yandex.Algorithm 2011: Round 2 {86} | PROGRAMMING | Problemset analysis (Yandex, Round 2) | 2100 | |
| 93751 | Insomnia cure | constructive algorithms implementation math | Statement | A | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 900 | |
| 2530 | Mathematical Analysis Rocks! | constructive algorithms implementation math | Statement | F | Codeforces Round 116 (Div. 2, ACM-ICPC Rules) {180} | PROGRAMMING | 1300 | ||
| 549 | Headquarters | constructive algorithms math | Statement | A | Croc Champ 2012 - Final {183} | PROGRAMMING | 1900 | ||
| 6358 | Plate Game | constructive algorithms games math | Statement | A | Codeforces Round 124 (Div. 2) {197} | PROGRAMMING | Разбор задач | 1600 | |
| 3012 | Clear Symmetry | constructive algorithms dp math | Statement | A | Codeforces Round 127 (Div. 1) {201} | PROGRAMMING | Разбор задач | 1700 | |
| 375 | Pixels | constructive algorithms math | Statement | B | VK Cup 2012 Finals, Practice Session {209} | PROGRAMMING | 2200 | ||
| 2044 | Not Wool Sequences | constructive algorithms math | Statement | A | Codeforces Round 148 (Div. 1) {238} | PROGRAMMING | Editorial for Codeforces Round #148 | 1700 | |
| 779 | Maxim and Matrix | constructive algorithms dp math | Statement | C | Codeforces Round 160 (Div. 1) {261} | PROGRAMMING | Codeforces Round #160 tutorial | 2300 | |
| 1353 | Below the Diagonal | constructive algorithms greedy math | Statement | C | Codeforces Round 163 (Div. 2) {266} | PROGRAMMING | 2000 | ||
| 9439 | XOR and OR | constructive algorithms implementation math | Statement | C | Codeforces Round 173 (Div. 2) {282} | PROGRAMMING | Round #173 — Editorial | 1600 | |
| 3183 | Lucky Permutation | constructive algorithms math | Statement | A | Codeforces Round 176 (Div. 1) {286} | PROGRAMMING | Tutorial | 1600 | |
| 833 | Ladies' Shop | constructive algorithms fft math | Statement | E | Codeforces Round 176 (Div. 1) {286} | PROGRAMMING | Tutorial | 2600 | |
| 7970 | Lucky Permutation Triple | constructive algorithms implementation math | Statement | A | Codeforces Round 183 (Div. 1) {303} | PROGRAMMING | Codeforces Round #183 Editorial | 1400 | |
| 8064 | Permutation | constructive algorithms dp math | Statement | B | Codeforces Round 209 (Div. 2) {359} | PROGRAMMING | 1400 | ||
| 6522 | Valera and Contest | constructive algorithms implementation math | Statement | B | Codeforces Round 216 (Div. 2) {369} | PROGRAMMING | Editorial Codeforces Round #216 (Div. 2) | 1500 | |
| 754 | On Corruption and Numbers | constructive algorithms implementation math | Statement | B | Codeforces Round 232 (Div. 2) {397} | PROGRAMMING | 1000.0 | ||
| 96 | Flow Optimality | constructive algorithms flows math | Statement | E | MemSQL Start[c]UP 2.0 - Round 2 {457} | PROGRAMMING | 3200 | ||
| 8005 | 24 Game | constructive algorithms greedy math | Statement | A | Codeforces Round 268 (Div. 1) {468} | PROGRAMMING | 13896 | 1600 | |
| 4685 | Dreamoon and Sets | constructive algorithms greedy math | Statement | D | Codeforces Round 272 (Div. 2) {476} | PROGRAMMING | Editorial | 2000 | |
| 9712 | Vasya and Chess | constructive algorithms games math | Statement | D | Codeforces Round 281 (Div. 2) {493} | PROGRAMMING | 1700 | ||
| 5827 | New Year Book Reading | constructive algorithms greedy implementation math | Statement | C | Good Bye 2014 {500} | PROGRAMMING | 1600 | ||
| 760 | Restoring Numbers | constructive algorithms math | Statement | D | Codeforces Round 289 (Div. 2, ACM ICPC Rules) {509} | PROGRAMMING | 2400 | ||
| 20459 | Game | constructive algorithms math | Statement | A | Rockethon 2015 {513} | PROGRAMMING | 16260 | 900 | |
| 12316 | Exam | constructive algorithms implementation math | Statement | A | Codeforces Round 298 (Div. 2) {534} | PROGRAMMING | 1100 | ||
| 1135 | Idempotent functions | constructive algorithms graphs math | Statement | C | VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) {542} | PROGRAMMING | 17697 | 2000 | |
| 1396 | Brackets in Implications | constructive algorithms greedy implementation math | Statement | E | Codeforces Round 306 (Div. 2) {550} | PROGRAMMING | 2300 | ||
| 16194 | Simple Game | constructive algorithms games greedy implementation math | Statement | B | Codeforces Round 316 (Div. 2) {570} | PROGRAMMING | Codeforces Round #316 Editorial | 1300 | |
| 1428 | Anton and Ira | constructive algorithms greedy math | Statement | E | Codeforces Round 324 (Div. 2) {584} | PROGRAMMING | Tutorial | 2400 | |
| 284 | Beautiful Function | constructive algorithms math | Statement | C | Codeforces Round 329 (Div. 2) {593} | PROGRAMMING | 2700 | ||
| 1014 | Necklace | constructive algorithms math | Statement | C | Codeforces Round 339 (Div. 1) {613} | PROGRAMMING | Tutorial | 2800 | |
| 635 | Finals in arithmetic | constructive algorithms implementation math | Statement | D | Codeforces Round 342 (Div. 2) {625} | PROGRAMMING | 2400 | ||
| 6630 | Cards | constructive algorithms dp math | Statement | B | 8VC Venture Cup 2016 - Elimination Round {626} | PROGRAMMING | 23522 | 1300 | |
| 555 | Ants on a Circle | constructive algorithms math | Statement | F | Educational Codeforces Round 10 {652} | PROGRAMMING | Editorial of Educational Codeforces Round 10 | 2800 | |
| 1635 | International Olympiad | constructive algorithms greedy implementation math | Statement | D | CROC 2016 - Final Round [Private, For Onsite Finalists Only] {662} | PROGRAMMING | Editorial for CROC 2016 Finals and Codeforces Round #347 | 2000 | |
| 3303 | Rebus | constructive algorithms expression parsing greedy math | Statement | A | Codeforces Round 347 (Div. 1) {663} | PROGRAMMING | Editorial for CROC 2016 Finals and Codeforces Round #347 | 1800 | |
| 13117 | Bear and Prime 100 | constructive algorithms interactive math | Statement | A | Codeforces Round 356 (Div. 1) {679} | PROGRAMMING | 1400 | ||
| 32393 | Lovely Palindromes | constructive algorithms math | Statement | B | Codeforces Round 360 (Div. 2) {688} | PROGRAMMING | Codeforces Round #360 Editorial [+ Challenges!] | 1000 | |
| 3246 | Recover the String | constructive algorithms greedy implementation math | Statement | B | AIM Tech Round 3 (Div. 1) {708} | PROGRAMMING | Editorial | 1900 | |
| 5132 | Magic Odd Square | constructive algorithms math | Statement | C | Educational Codeforces Round 16 {710} | PROGRAMMING | Editorial of Educational Codeforces Round 16 | 1600 | |
| 5625 | Plus and Square Root | constructive algorithms math | Statement | A | Codeforces Round 372 (Div. 1) {715} | PROGRAMMING | 1600 | ||
| 2355 | Maxim and Array | constructive algorithms data structures greedy math | Statement | D | Codeforces Round 374 (Div. 2) {721} | PROGRAMMING | Codeforces Round #374 (Div. 2) Editorial | 2000 | |
| 7477 | Guess the Array | constructive algorithms interactive math | Statement | C | Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) {727} | PROGRAMMING | Tutorial | 1400 | |
| 3772 | Sea Battle | constructive algorithms greedy math | Statement | D | Technocup 2017 - Elimination Round 2 {729} | PROGRAMMING | 1700 | ||
| 187 | Chess Championship | constructive algorithms flows greedy math | Statement | E | Codeforces Round 382 (Div. 1) {736} | PROGRAMMING | 2800 | ||
| 70 | Dirty plates | constructive algorithms math | Statement | F | Codeforces Round 380 (Div. 1, Rated, Based on Technocup 2017 - Elimination Round 2) {737} | PROGRAMMING | 3300 | ||
| 5118 | Green and Black Tea | constructive algorithms greedy math | Statement | D | Codeforces Round 386 (Div. 2) {746} | PROGRAMMING | Codeforces Round #386 (Div.2) Editorial | 1500 | |
| 3732 | Tram | constructive algorithms implementation math | Statement | C | Codeforces Round 386 (Div. 2) {746} | PROGRAMMING | 1600 | ||
| 4630 | Santa Claus and Robot | constructive algorithms math | Statement | C | Technocup 2017 - Elimination Round 3 {748} | PROGRAMMING | Codeforces Round 389 (Div.2) Editorial | 1400 | |
| 2486 | Artsem and Saunders | constructive algorithms ds math | Statement | D | Codeforces Round 397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) {765} | PROGRAMMING | Codeforces Round #397 Editorial | 1700 | |
| 10308 | Shell Game | constructive algorithms implementation math | Statement | A | Codeforces Round 401 (Div. 2) {777} | PROGRAMMING | Problem analysis of Codeforces Round #401 (Div. 2) | 1100 | |
| 9331 | Pupils Redistribution | constructive algorithms math | Statement | A | Codeforces Round 402 (Div. 2) {779} | PROGRAMMING | Codeforces Round #402, Editorial | 1100 | |
| 5138 | Maximal GCD | constructive algorithms greedy math | Statement | C | Educational Codeforces Round 20 {803} | PROGRAMMING | 51768 | 2000 | |
| 15511 | Find Amir | constructive algorithms greedy math | Statement | A | Codeforces Round 411 (Div. 1) {804} | PROGRAMMING | Codeforces Round #411 Editorial | 1100 | |
| 5268 | Mister B and Angle in Polygon | constructive algorithms geometry math | Statement | B | Codeforces Round 421 (Div. 2) {820} | PROGRAMMING | Codeforces Round #421 Editorial | 1300 | |
| 393 | Tournament Construction | constructive algorithms dp graphs greedy math | Statement | D | Codeforces Round 432 (Div. 1, based on IndiaHacks Final Round 2017) {850} | PROGRAMMING | Codeforces Round #432 editorial | 2700 | |
| 8198 | Maxim Buys an Apartment | constructive algorithms math | Statement | B | Codeforces Round 433 (Div. 2, based on Olympiad of Metropolises) {854} | PROGRAMMING | 1200 | ||
| 4379 | Marco and GCD Sequence | constructive algorithms math | Statement | C | Codeforces Round 447 (Div. 2) {894} | PROGRAMMING | 1800 | ||
| 8501 | Dividing the numbers | constructive algorithms graphs math | Statement | C | Codeforces Round 452 (Div. 2) {899} | PROGRAMMING | Codeforces Round #452 (Div.2) Editorial | 1300 | |
| 2768 | Shovel Sale | constructive algorithms math | Statement | D | Codeforces Round 452 (Div. 2) {899} | PROGRAMMING | Codeforces Round #452 (Div.2) Editorial | 1800 | |
| 10262 | Splitting in Teams | constructive algorithms greedy math | Statement | A | Codeforces Round 452 (Div. 2) {899} | PROGRAMMING | Codeforces Round #452 (Div.2) Editorial | 900 | |
| 1584 | GCD of Polynomials | constructive algorithms math | Statement | B | Codeforces Round 453 (Div. 1) {901} | PROGRAMMING | 2100 | ||
| 6418 | Segments | constructive algorithms math | Statement | B | Codeforces Round 455 (Div. 2) {909} | PROGRAMMING | Codeforces Round #455 (Div. 2) Editorial | 1300 | |
| 1812 | Minimum Sum | constructive algorithms greedy math | Statement | C | Testing Round 14 (Unrated) {910} | PROGRAMMING | 1700 | ||
| 1316 | Big Secret | constructive algorithms math | Statement | C | VK Cup 2018 - Round 3 {925} | PROGRAMMING | Разбор VK 2018 Round 3 + Codeforces Round #477 | 2200 | |
| 3732 | A Leapfrog in the Array | constructive algorithms math | Statement | B | Codeforces Round 469 (Div. 1) {949} | PROGRAMMING | 1700 | ||
| 9514 | Sonya and Exhibition | constructive algorithms greedy implementation math | Statement | B | Codeforces Round 495 (Div. 2) {1004} | PROGRAMMING | 60443 | 1400 | |
| 4719 | Vasya And The Matrix | constructive algorithms flows math | Statement | D | Educational Codeforces Round 48 (Rated for Div. 2) {1016} | PROGRAMMING | Разбор Educational Codeforces Round 48 | 1800 | |
| 733 | Company Acquisitions | constructive algorithms math | Statement | G | Codeforces Round 505 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1025} | PROGRAMMING | Codeforces Round #505 Editorial | 3100 | |
| 9116 | Unnatural Conditions | constructive algorithms math | Statement | B | AIM Tech Round 5 (rated, Div. 1 + Div. 2) {1028} | PROGRAMMING | 61493 | 1300 | |
| 11220 | Packets | constructive algorithms greedy math | Statement | A | Manthan, Codefest 18 (rated, Div. 1 + Div. 2) {1037} | PROGRAMMING | Tutorial | 1300 | |
| 13649 | Non-Coprime Partition | constructive algorithms math | Statement | B | Codeforces Round 508 (Div. 2) {1038} | PROGRAMMING | Tutorial | 1100 | |
| 788 | Timetable | constructive algorithms data structures greedy math | Statement | A | Codeforces Round 507 (Div. 1, based on Olympiad of Metropolises) {1039} | PROGRAMMING | 61668 | 2400 | |
| 4729 | Array Product | constructive algorithms greedy math | Statement | C | Codeforces Round 510 (Div. 2) {1042} | PROGRAMMING | Tutorial | 1700 | |
| 487 | Chips Puzzle | constructive algorithms implementation math | Statement | E | Mail.Ru Cup 2018 Round 1 {1054} | PROGRAMMING | Editorial | 2400 | |
| 296 | New Road Network | constructive algorithms greedy math | Statement | G | Mail.Ru Cup 2018 Round 1 {1054} | PROGRAMMING | Editorial | 2900 | |
| 7169 | Sequence Transformation | constructive algorithms math | Statement | C | Codeforces Round 514 (Div. 2) {1059} | PROGRAMMING | Codeforces Round #514 (Div. 2) Editorial | 1500 | |
| 356 | Lasers and Mirrors | constructive algorithms math | Statement | E | Codeforces Round 516 (Div. 1, by Moscow Team Olympiad) {1063} | PROGRAMMING | Editorial | 3000 | |
| 1561 | Olya and magical square | constructive algorithms implementation math | Statement | D | Codeforces Round 524 (Div. 2) {1080} | PROGRAMMING | Codeforces Round #524 (Div. 2) Editorial | 2000 | |
| 12110 | Definite Game | constructive algorithms math | Statement | A | Avito Cool Challenge 2018 {1081} | PROGRAMMING | 63888 | 800 | |
| 8086 | Ehab and a 2-operation task | constructive algorithms greedy math | Statement | C | Codeforces Round 525 (Div. 2) {1088} | PROGRAMMING | Codeforces round #525 editorial | 1400 | |
| 853 | Johnny Solving | constructive algorithms dfs and similar graphs math | Statement | C | Codeforces Round 534 (Div. 1) {1103} | PROGRAMMING | Codeforces Round #534 — Editorial | 2800 | |
| 15441 | Splitting into digits | constructive algorithms implementation math | Statement | A | Codeforces Round 534 (Div. 2) {1104} | PROGRAMMING | Codeforces Round #534 — Editorial | 800 | |
| 6851 | Ramesses and Corner Inversion | constructive algorithms greedy implementation math | Statement | C | Codeforces Global Round 2 {1119} | PROGRAMMING | Codeforces Global Round 2 Editorial | 1500 | |
| 429 | 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 | |
| 11744 | Nastya Is Playing Computer Games | constructive algorithms math | Statement | B | Codeforces Round 546 (Div. 2) {1136} | PROGRAMMING | Editorial of Round #546(Div.2) | 1000 | |
| 5367 | Problem for Nazar | constructive algorithms math | Statement | C | Codeforces Round 553 (Div. 2) {1151} | PROGRAMMING | Codeforces Round #553 (Div. 2) Editorial | 1700 | |
| 3764 | N Problems During K Days | constructive algorithms greedy math | Statement | D | Codeforces Round 555 (Div. 3) {1157} | PROGRAMMING | 66737 | 2100 | |
| 840 | Winding polygonal line | constructive algorithms geometry greedy math | Statement | D | Codeforces Round 559 (Div. 1) {1158} | PROGRAMMING | 66993 | 2800 | |
| 378 | Xor Permutations | constructive algorithms math | Statement | E | Codeforces Round 562 (Div. 1) {1168} | PROGRAMMING | Codeforces Round #562 — Editorial | 3100 | |
| 8962 | Vus the Cossack and Numbers | constructive algorithms greedy math | Statement | D | Codeforces Round 571 (Div. 2) {1186} | PROGRAMMING | E | 1600 | |
| 16688 | Odd Sum Segments | constructive algorithms math | Statement | B | Codeforces Round 575 (Div. 3) {1196} | PROGRAMMING | Editorial | 1200 | |
| 14192 | Almost Equal | constructive algorithms greedy math | Statement | A | Codeforces Round 580 (Div. 1) {1205} | PROGRAMMING | 69158 | 1300 | |
| 123 | Beauty of a Permutation | constructive algorithms math | Statement | F | Codeforces Round 580 (Div. 1) {1205} | PROGRAMMING | 69158 | 3400 | |
| 1365 | Running in Pairs | constructive algorithms greedy math | Statement | G | Codeforces Round 592 (Div. 2) {1244} | PROGRAMMING | Codeforces Round #592 (Div. 2) Tutorial | 2500 |