Codeforces problemset search & solutions
Exclude tags.

Review the problem statement from Codeforces (link will open a new tab). When you've matched your problem, go to the solutions.

Get exact match for tags using this format, eg: [u'brute force', 'dp']

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
6158 Center Alignment implementation strings Statement B Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 1400
1658 Logging implementation strings Statement D Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING 2000
1925 Jabber ID implementation strings Statement A Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
159836 Translation implementation strings Statement A Codeforces Beta Round 40 (Div. 2) {41} PROGRAMMING Codeforces Beta Round #40 Mini-Tutorial 900
18042 Letter implementation strings Statement B Codeforces Beta Round 42 (Div. 2) {43} PROGRAMMING How to solve Codeforces 42(Div.2) 1200
192444 Word implementation strings Statement A Codeforces Beta Round 55 (Div. 2) {59} PROGRAMMING Round 55 (DIV 2) 800
12162 Sinking Ship implementation sortings strings Statement A Codeforces Beta Round 59 (Div. 2) {63} PROGRAMMING Разбор задач Codeforces Round #59 (Div. 2) 1100
6591 Petya and Java implementation strings Statement A Codeforces Beta Round 61 (Div. 2) {66} PROGRAMMING Codeforces Beta Round #61 (Div. 2): Editorial 1400
13738 Haiku implementation strings Statement A Codeforces Beta Round 70 (Div. 2) {78} PROGRAMMING Solutions for Codeforces Beta Round #70 (Div. 2) 1000
1971 Sequence Formatting implementation strings Statement B Yandex.Algorithm Open 2011: Qualification 1 {81} PROGRAMMING 1700
1165 Vasya and Types implementation strings Statement B Codeforces Beta Round 73 (Div. 1 Only) {87} PROGRAMMING 1900
5431 African Crossword implementation strings Statement B Codeforces Beta Round 74 (Div. 2 Only) {90} PROGRAMMING Codeforces Beta Round #74 - Short editorial except Div. 1 E 1100
11107 Restoring Password implementation strings Statement A Codeforces Beta Round 76 (Div. 2 Only) {94} PROGRAMMING Analysis Beta Round #76 (Div. 2-A,B,C) 1000
1710 Hockey implementation strings Statement A Codeforces Beta Round 77 (Div. 1 Only) {95} PROGRAMMING 1700
170583 Football implementation strings Statement A Codeforces Beta Round 77 (Div. 2 Only) {96} PROGRAMMING Codeforces Beta Round #77 (Div. 2 Only) Question A - D 1100
9573 Palindromic Times implementation strings Statement A Codeforces Beta Round 83 (Div. 2 Only) {108} PROGRAMMING Editorial: Codeforces Beta Round #83 (Dima) 1100
244755 Petya and Strings implementation strings Statement A Codeforces Beta Round 85 (Div. 2 Only) {112} PROGRAMMING Разбор CFBR #85 Div. 1 C, D 900
2328 Grammar Lessons implementation strings Statement A Codeforces Beta Round 86 (Div. 1 Only) {113} PROGRAMMING Codeforces Beta Round #86 Editorial 1600
205977 String Task implementation strings Statement A Codeforces Beta Round 89 (Div. 2) {118} PROGRAMMING Разбор задач. Codeforces beta round #89. 1100
3691 Prime Permutation implementation number theory strings Statement A Codeforces Beta Round 92 (Div. 1 Only) {123} PROGRAMMING Codeforces Beta Round #92 - Analysis 1600
90503 cAPS lOCK implementation strings Statement A Codeforces Beta Round 95 (Div. 2) {131} PROGRAMMING Разбор Codeforces Beta Round #95 (Div.2) 1100
89017 Amusing Joke implementation sortings strings Statement A Codeforces Round 101 (Div. 2) {141} PROGRAMMING Codeforces Round #101 (Div. 2) Разбор Задач. 900
5080 Help Kingdom of Far Far Away 2 implementation strings Statement B Codeforces Round 102 (Div. 2) {143} PROGRAMMING Codeforces Round #102 - Editorial 1200
4068 Anagram Search implementation strings Statement C Codeforces Round 103 (Div. 2) {144} PROGRAMMING Codeforces Round #103 (Div. 2) Разбор Задач. 1500
3752 Punctuation implementation strings Statement A Codeforces Testing Round 4 {147} PROGRAMMING 1300
6524 Phone Numbers implementation strings Statement B Codeforces Round 107 (Div. 2) {151} PROGRAMMING 1300
1231 Wizards and Minimal Spell implementation strings Statement B Codeforces Round 114 (Div. 2) {168} PROGRAMMING Codeforces Round #114 — Tutorial 1700
17540 Comparing Strings implementation strings Statement A Codeforces Round 118 (Div. 2) {186} PROGRAMMING Editorial for Round #118 1200
29409 k-String implementation strings Statement A Codeforces Round 135 (Div. 2) {219} PROGRAMMING User editorial for Codeforces Round #135 (Div. 2) 1100
5323 Internet Address implementation strings Statement B CROC-MBTU 2012, Elimination Round (ACM-ICPC) {245} PROGRAMMING КРОК-МВТУ 2012, Отборочный раунд (Разбор) 1100
2031 Restoring IPv6 implementation strings Statement B CROC-MBTU 2012, Final Round (Online version, Div. 2) {250} PROGRAMMING 1500
230599 Word Capitalization implementation strings Statement A Codeforces Round 172 (Div. 2) {281} PROGRAMMING Codeforces Round #172 Editorial 800
5112 Whose sentence is it? implementation strings Statement A Codeforces Round 185 (Div. 2) {312} PROGRAMMING Codeforces Round #185 Editorial 1300
4005 Pattern implementation strings Statement C Coder-Strike 2014 - Round 1 {412} PROGRAMMING 1300
16423 Suffix Structures implementation strings Statement B Codeforces Round 256 (Div. 2) {448} PROGRAMMING Tutorial 1400
41154 Lecture implementation strings Statement B Codeforces Round 284 (Div. 2) {499} PROGRAMMING 1000
106739 Pangram implementation strings Statement A Codeforces Round 295 (Div. 2) {520} PROGRAMMING Codeforces Round #295 Editorial (now with bonuses!) 900
8448 Set of Strings implementation strings Statement A Codeforces Round 302 (Div. 2) {544} PROGRAMMING Editorial Codeforces Round #302 1100
9678 Face Detection implementation strings Statement A Looksery Cup 2015 {549} PROGRAMMING Looksery Cup 2015 Editorial 1000
8350 Rebranding implementation strings Statement B Codeforces Round 327 (Div. 2) {591} PROGRAMMING Editorial 1200
11488 Queries on a String implementation strings Statement B Educational Codeforces Round 1 {598} PROGRAMMING Editorial 1400
5446 Extract Numbers implementation strings Statement A Educational Codeforces Round 2 {600} PROGRAMMING Editorial 1600
10146 Comparing Two Long Integers implementation strings Statement A Educational Codeforces Round 5 {616} PROGRAMMING Editorial of Educational Codeforces Round 5 1200
7609 s-palindrome implementation strings Statement B Educational Codeforces Round 14 {691} PROGRAMMING Editorial of Educational Codeforces Round 14 1600
2716 Exponential notation implementation strings Statement C Educational Codeforces Round 14 {691} PROGRAMMING Editorial of Educational Codeforces Round 14 1900
9925 Memory and Trident implementation strings Statement B Codeforces Round 370 (Div. 2) {712} PROGRAMMING Codeforces Round #370 Editorial 1200
12198 Passwords implementation math sortings strings Statement B Codeforces Round 374 (Div. 2) {721} PROGRAMMING 1200
6559 Verse Pattern implementation strings Statement B Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined) {722} PROGRAMMING 1200
7634 Interview with Oleg implementation strings Statement A Technocup 2017 - Elimination Round 2 {729} PROGRAMMING Technocup 2017 — Elimination Round 2 (and Codeforces Round 380) Editorial 1000
48404 Night at the Museum implementation strings Statement A Codeforces Round 376 (Div. 2) {731} PROGRAMMING 47840 800
166505 Anton and Danik implementation strings Statement A Codeforces Round 379 (Div. 2) {734} PROGRAMMING Tutorial of Codeforces Round #379 (Div. 2) 700
12678 Ostap and Grasshopper implementation strings Statement A Codeforces Round 382 (Div. 2) {735} PROGRAMMING 1000
10625 Hongcow Learns the Cyclic Shift implementation strings Statement A Codeforces Round 385 (Div. 2) {745} PROGRAMMING Tutorial 900
29505 Decoding implementation strings Statement B Codeforces Round 386 (Div. 2) {746} PROGRAMMING 900
9137 Mammoth's Genome Decoding implementation strings Statement B Codeforces Round 387 (Div. 2) {747} PROGRAMMING 49171 1000
5419 Santa Claus and Keyboard Check implementation strings Statement B Technocup 2017 - Elimination Round 3 {748} PROGRAMMING Codeforces Round 389 (Div.2) Editorial 1500
96275 Anton and Polyhedrons implementation strings Statement A Codeforces Round 404 (Div. 2) {785} PROGRAMMING Editorial 600
14811 Keyboard Layouts implementation strings Statement B Codeforces Round 424 (Div. 2, rated, based on VK Cup Finals) {831} PROGRAMMING Codeforces Round #424 Editorial 800
4411 Petya and Exam implementation strings Statement B Codeforces Round 425 (Div. 2) {832} PROGRAMMING 1600
11124 Alex and broken contest implementation strings Statement A Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 1200
1931 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
5402 Phone Numbers implementation strings Statement C Codeforces Round 451 (Div. 2) {898} PROGRAMMING 1400
4176 Shockers implementation strings Statement A Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} PROGRAMMING 1600
17801 Radio Station implementation strings Statement B Codeforces Round 459 (Div. 2) {918} PROGRAMMING 900
2767 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
7383 String Typing implementation strings Statement B Educational Codeforces Round 40 (Rated for Div. 2) {954} PROGRAMMING 58519 1400
9651 Aramic script implementation strings Statement A Codeforces Round 478 (Div. 2) {975} PROGRAMMING Codeforces Round #478 (Div. 2), Editorial 1000
42885 Two-gram implementation strings Statement B Codeforces Round 479 (Div. 3) {977} PROGRAMMING Codeforces Round #479 (Div. 3) Editorial 900
10669 A Blend of Springtime implementation strings Statement A Codeforces Round 487 (Div. 2) {989} PROGRAMMING Codeforces Round #487 (Div. 2) Editorial 1000
15536 Romaji implementation strings Statement A Codeforces Round 497 (Div. 2) {1008} PROGRAMMING Editorial for Codeforces Round #497 by Skyglow 900
17076 Palindromic Twist implementation strings Statement A Educational Codeforces Round 49 (Rated for Div. 2) {1027} PROGRAMMING Educational Codeforces Round 49 Editorial 1000
12691 Many Equal Substrings implementation strings Statement A Codeforces Round 506 (Div. 3) {1029} PROGRAMMING Codeforces Round #506 (Div. 3) Editorial 1300
15128 Equality implementation strings Statement A Codeforces Round 508 (Div. 2) {1038} PROGRAMMING Tutorial 800
16011 Diverse Substring implementation strings Statement A Educational Codeforces Round 53 (Rated for Div. 2) {1073} PROGRAMMING 62742 1000
12332 Right-Left Cipher implementation strings Statement A Technocup 2019 - Elimination Round 4 {1085} PROGRAMMING Technocup 2019 — Elimination Round 4 + Codeforces Round 528: editorial 900
17308 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
17089 Even Substrings implementation strings Statement A Codeforces Round 548 (Div. 2) {1139} PROGRAMMING Codeforces Round #548 Editorial 700
11457 Good String implementation strings Statement B Educational Codeforces Round 62 (Rated for Div. 2) {1140} PROGRAMMING Educational Codeforces Round 62 Editorial 1200
19811 Diverse Strings implementation strings Statement A Codeforces Round 550 (Div. 3) {1144} PROGRAMMING 66307 900
8872 Hate "A" implementation strings Statement B Forethought Future Cup - Elimination Round {1146} PROGRAMMING 66639 1100
22519 Love "A" implementation strings Statement A Forethought Future Cup - Elimination Round {1146} PROGRAMMING 66639 600
17424 Reverse a Substring implementation sortings strings Statement A Educational Codeforces Round 63 (Rated for Div. 2) {1155} PROGRAMMING 66687 1000
13726 Email from Polycarp implementation strings Statement B Codeforces Round 568 (Div. 2) {1185} PROGRAMMING Editorial for Codeforces Round #568 (Div. 2) 1200
13735 From S To T implementation strings Statement C Educational Codeforces Round 68 (Rated for Div. 2) {1194} PROGRAMMING Разбор Educational Codeforces Round 68 1300
16102 Important Exam implementation strings Statement A Codeforces Round 577 (Div. 2) {1201} PROGRAMMING Codeforces Round #577 (Div 2) Editorial 900
1911 Periodic integer number implementation strings Statement C Bubble Cup 12 - Finals [Online Mirror, unrated, Div. 2] {1219} PROGRAMMING E 1700
30875 Cards implementation sortings strings Statement A Codeforces Round 586 (Div. 1 + Div. 2) {1220} PROGRAMMING Codeforces Round #586 Editorial 600
18206 New Year and Naming implementation strings Statement A Hello 2020 {1284} PROGRAMMING Hello 2020 Editorial 600
19620 Three Strings implementation strings Statement A Codeforces Round 619 (Div. 2) {1301} PROGRAMMING 500.0 Codeforces Round #619 (Div. 2) Editorial 800
33741 Erasing Zeroes implementation strings Statement A Educational Codeforces Round 82 (Rated for Div. 2) {1303} PROGRAMMING Educational Codeforces Round 82 700
24361 Subsequence Hate implementation strings Statement B Codeforces Round 646 (Div. 2) {1363} PROGRAMMING 1000.0 78202 1400
60436 Short Substrings implementation strings Statement A Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial