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
20737 Prefix Flip (Easy Version) constructive algorithms data structures strings Statement A1 Codeforces Round 658 (Div. 1) {1381} PROGRAMMING 500.0 Codeforces Round #658 Editorial 1300
18957 Common Prefixes constructive algorithms greedy strings Statement A Codeforces Round 659 (Div. 2) {1384} PROGRAMMING 500.0 Codeforces Round #659 Editorial
9121 Omkar and Bed Wars constructive algorithms dp greedy math strings Statement D Codeforces Global Round 10 {1392} PROGRAMMING 1500.0 Codeforces Global Round 10 — Editorial
12950 Palindromifier constructive algorithms strings Statement C Codeforces Round 676 (Div. 2) {1421} PROGRAMMING 1500.0 Codeforces Round #676 (Div. 2) Editorial
4616 AB Graph constructive algorithms graphs greedy implementation strings Statement D Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 2000.0 Codeforces Round #699 (Div. 2) Editorial
21881 Déjà Vu constructive algorithms strings Statement A Codeforces Round 712 (Div. 2) {1504} PROGRAMMING 500.0 Codeforces Round #712 Editorial 800
20485 A-B Palindrome constructive algorithms implementation strings Statement C Codeforces Round 713 (Div. 3) {1512} PROGRAMMING Codeforces Round #713 (Div. 3) Editorial
3015 Minimax constructive algorithms greedy implementation strings Statement E Codeforces Round 733 (Div. 1 + Div. 2, based on VK Cup 2021 - Elimination (Engine)) {1530} PROGRAMMING 2000.0 Codeforces Round #733 Editorial (all problems)
9674 Diane constructive algorithms greedy strings Statement D Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 2000.0 Editorial of Codeforces Round #735 (Div. 2) 1800
26009 AB Balance constructive algorithms strings Statement A Educational Codeforces Round 116 (Rated for Div. 2) {1606} PROGRAMMING 96454
16383 Forbidden Subsequence constructive algorithms sortings strings Statement A Codeforces Round 761 (Div. 2) {1617} PROGRAMMING 750.0 Editorial for Codeforces Round #761 (Div. 2)
115 Mio and Lucky Array constructive algorithms fft math strings Statement G CodeTON Round 2 (Div. 1 + Div. 2, Rated, Prizes!) {1704} PROGRAMMING 3500.0 CodeTON Round 2 Editorial
20380 Jumping on Tiles constructive algorithms strings Statement C Codeforces Round 820 (Div. 3) {1729} PROGRAMMING Codeforces Round #820 (Div. 3) Editorial
2759 Prefixes and Suffixes constructive algorithms ds strings Statement D Codeforces Round 823 (Div. 2) {1730} PROGRAMMING 2250.0 Codeforces Round #823 — editorial 2200
2562 Equal Binary Subsequences constructive algorithms greedy strings Statement D Codeforces Round 825 (Div. 2) {1736} PROGRAMMING 2000.0 Codeforces Round #825 (Div. 2) Editorial
12187 Smaller constructive algorithms greedy strings Statement F Codeforces Round 827 (Div. 4) {1742} PROGRAMMING 107962
25508 SSeeeeiinngg DDoouubbllee constructive algorithms strings Statement A Codeforces Round 836 (Div. 2) {1758} PROGRAMMING 500.0 Codeforces Round #836 (Div. 2) Editorial
19033 Gardener and the Capybaras (hard version) constructive algorithms greedy strings Statement A2 Codeforces Round 843 (Div. 2) {1775} PROGRAMMING 500.0 Codeforces Round #843 (Div. 2) Editorial
23372 Hall of Fame constructive algorithms greedy math strings Statement A Hello 2023 {1779} PROGRAMMING 500.0
17422 Prefix and Suffix Array constructive algorithms strings Statement A Codeforces Round 856 (Div. 2) {1794} PROGRAMMING 750.0 Codeforces Round 856 (Div. 2) Editorial
6058 Double Lexicographically Minimum constructive algorithms greedy implementation strings Statement C Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} PROGRAMMING 1500.0 Codeforces Round #854 Editorial
3362 Bracket Walk constructive algorithms data structures implementation sortings strings Statement D Codeforces Round 877 (Div. 2) {1838} PROGRAMMING 1750.0 Codeforces Round #877 (Div. 2) Editorial
12627 Row Major constructive algorithms math number theory strings Statement D Codeforces Round 884 (Div. 1 + Div. 2) {1844} PROGRAMMING 1500.0 Codeforces Round #884 (Div. 1 + Div. 2) Editorial
22172 Not a Substring constructive algorithms dp strings Statement A Educational Codeforces Round 153 (Rated for Div. 2) {1860} PROGRAMMING Educational Codeforces Round 153 Editorial
12205 Decreasing String constructive algorithms strings Statement C Educational Codeforces Round 156 (Rated for Div. 2) {1886} PROGRAMMING Educational Codeforces Round 156 Editorial
20797 Removal of Unattractive Pairs constructive algorithms greedy math strings Statement C Codeforces Round 913 (Div. 3) {1907} PROGRAMMING Codeforces Round 913 (Div. 3) Editorial
27471 Tricky Template constructive algorithms implementation strings Statement A Educational Codeforces Round 161 (Rated for Div. 2) {1922} PROGRAMMING Educational Codeforces Round 161 Editorial
14482 Did We Get Everything Covered? constructive algorithms dp greedy strings Statement A Codeforces Round 921 (Div. 1) {1924} PROGRAMMING 500.0 Codeforces Round 921 (Div. 1, Div. 2) Editorial
29369 We Got Everything Covered! constructive algorithms greedy strings Statement A Codeforces Round 921 (Div. 2) {1925} PROGRAMMING 500.0 Codeforces Round 921 (Div. 1, Div. 2) Editorial
34278 Following the String constructive algorithms greedy strings Statement B Codeforces Round 923 (Div. 3) {1927} PROGRAMMING 125597
28594 Entertainment in MAC constructive algorithms strings Statement A Codeforces Round 932 (Div. 2) {1935} PROGRAMMING 500.0 Codeforces Round #932 (Div. 2) Editorial
2027 Folding Strip constructive algorithms greedy strings Statement C Codeforces Round 941 (Div. 1) {1965} PROGRAMMING 1500.0 Codeforces Round #941 (Div. 1, Div. 2) Editorial 2300
223 Arithmancy (Medium) constructive algorithms interactive probabilities strings Statement D2 Helvetic Coding Contest 2024 online mirror (teams allowed, unrated) {1970} PROGRAMMING Helvetic Coding Contest 2024 Editorial 2600
19001 Turtle and Good Pairs constructive algorithms greedy strings Statement C Codeforces Round 968 (Div. 2) {2003} PROGRAMMING 1000.0
13129 Shohag Loves Strings constructive algorithms greedy implementation strings Statement B CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!) {2039} PROGRAMMING 1000.0