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
1268 Last Chance data structures implementation strings Statement E Codeforces Beta Round 98 (Div. 2) {137} PROGRAMMING Codeforces Beta Round #98 (Div. 2): Editorial 2000
550 The Next Good String data structures greedy hashing strings Statement D Codeforces Round 124 (Div. 1) {196} PROGRAMMING 2600
877 Two Permutations data structures hashing strings Statement E Codeforces Round 131 (Div. 1) {213} PROGRAMMING Codeforces Round #131 Tutorial 2600
1855 Two Strings data structures dp strings Statement B Codeforces Round 138 (Div. 1) {223} PROGRAMMING 2000
2219 Cyclical Quest data structures string suffix structures strings Statement C Codeforces Round 146 (Div. 1) {235} PROGRAMMING Codeforces Round #146 Tutorial 2700
12172 Good Substrings data structures strings Statement D Codeforces Round 166 (Div. 2) {271} PROGRAMMING editroal 1800
1090 Three strings data structures ds string suffix structures strings Statement E MemSQL Start[c]UP 2.0 - Round 1 {452} PROGRAMMING MemSQL Start[c]UP 2.0 Round 1 and 2 Editorials 2400
17594 Misha and Changing Handles data structures ds strings Statement B Codeforces Round 285 (Div. 2) {501} PROGRAMMING Tutorial 1100
551 And Yet Another Bracket Sequence data structures greedy hashing string suffix structures strings Statement F VK Cup 2015 - Round 1 {524} PROGRAMMING VK Cup Round 1 (+ online mirror) editorial 2700
6577 A Simple Task data structures sortings strings Statement E Codeforces Round 312 (Div. 2) {558} PROGRAMMING Codeforces Round #312 (Div. 2) Editorial 2600
2262 Kefa and Watch data structures hashing strings Statement E Codeforces Round 321 (Div. 2) {580} PROGRAMMING 2700
1118 Duff is Mad data structures strings Statement F Codeforces Round 326 (Div. 1) {587} PROGRAMMING Codeforces Round #326 (Editorial) 3000
941 Alphabet Permutations data structures strings Statement E Codeforces Round 337 (Div. 2) {610} PROGRAMMING Codeforces Round #337 (Div.2) Editorial 2700
2153 Messenger data structures hashing implementation string suffix structures strings Statement D Codeforces Round 344 (Div. 2) {631} PROGRAMMING 2100
2951 Spy Syndrome 2 data structures dp hashing implementation sortings string suffix structures strings Statement C Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 1900
1043 Paper task data structures string suffix structures strings Statement F IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) {653} PROGRAMMING IndiaHacks Finals 2016 — Editorial 2500
3278 Correct Bracket Sequence Editor data structures ds strings Statement E Codeforces Round 350 (Div. 2) {670} PROGRAMMING 1700
1386 Legen... data structures dp matrices strings Statement D Codeforces Round 362 (Div. 1) {696} PROGRAMMING Codeforces Round #362 (Editorial) 2700
2363 Dense Subsequence data structures greedy strings Statement D Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined) {724} PROGRAMMING 1900
1333 Games on a CD data structures hashing string suffix structures strings Statement E Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) {727} PROGRAMMING 2300
2393 Felicity is Coming! data structures hashing sortings strings Statement C Codecraft-17 and Codeforces Round 391 (Div. 1 + Div. 2, combined) {757} PROGRAMMING 1900
8310 Minimal string data structures greedy strings Statement C Educational Codeforces Round 19 {797} PROGRAMMING 51588 1700
4151 String Reconstruction data structures greedy sortings strings Statement A Codeforces Round 423 (Div. 1, rated, based on VK Cup Finals) {827} PROGRAMMING Codeforces Round #423 Analysis 1700
1693 DNA Evolution data structures strings Statement C Codeforces Round 423 (Div. 1, rated, based on VK Cup Finals) {827} PROGRAMMING 2200
229 Mahmoud and Ehab and the final stage data structures strings Statement F Codeforces Round 435 (Div. 2) {862} PROGRAMMING Codeforces round #435 editorial 2800
1905 Letters Removing data structures strings Statement F Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 2200
1292 Maximum Questions data structures dp strings Statement E Codeforces Round 450 (Div. 2) {900} PROGRAMMING 2300
285 Speckled Band data structures divide and conquer hashing string suffix structures strings Statement G Codeforces Round 519 by Botan Investments {1043} PROGRAMMING Codeforces Round #519 Editorial 3500
178 Detect Robots data structures strings Statement H Mail.Ru Cup 2018 Round 3 {1056} PROGRAMMING Mail.Ru Cup 2018 Round 3 Editorial 3100
115 Palindromic Magic data structures hashing strings Statement H Avito Cool Challenge 2018 {1081} PROGRAMMING 63888 3500
4470 Beautiful Lyrics data structures greedy strings Statement C Codeforces Round 566 (Div. 2) {1182} PROGRAMMING 67614 1700
3292 Kirk and a Binary String (hard version) data structures greedy math strings Statement D2 Codeforces Round 581 (Div. 2) {1204} PROGRAMMING 69244 2100
2680 Unstable String Sort data structures dfs and similar ds graphs greedy implementation strings Statement F Codeforces Round 582 (Div. 3) {1213} PROGRAMMING Codeforces Round #582 (Div. 3) Editorial 2400
596 Fedya the Potter Strikes Back data structures strings Statement E Codeforces Round 612 (Div. 1) {1286} PROGRAMMING Codeforces Round #612 - Editorial 3200
1566 Reachable Strings data structures hashing string suffix structures strings strings Statement D Codeforces Round 625 (Div. 1, based on Technocup 2020 Final Round) {1320} PROGRAMMING 2000.0 Codeforces Round #625 Editorial