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13891 Another Problem on Strings binary search brute force dp math strings two pointers Statement C Codeforces Round 112 (Div. 2) {165} PROGRAMMING Codeforces Round #112 (Div. 2) Tutorial 1600
7782 An impassioned circulation of affection brute force dp strings two pointers Statement C Codeforces Round 418 (Div. 2) {814} PROGRAMMING Codeforces Round #418 (Div. 2) Editorial 1600
4842 Maximize the Remaining String brute force data structures dp greedy strings two pointers Statement G Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
1424 Typical Party in Dorm bitmasks brute force combinatorics dp strings two pointers Statement E Codeforces Round 791 (Div. 2) {1679} PROGRAMMING 2250.0 Codeforces Round #791 (Div. 2) Editorial
1353 Text Editor brute force dp greedy strings two pointers Statement E Educational Codeforces Round 131 (Rated for Div. 2) {1701} PROGRAMMING Educational Codeforces Round 131 Editorial
12449 Tandem Repeats? brute force dp strings two pointers Statement D Educational Codeforces Round 163 (Rated for Div. 2) {1948} PROGRAMMING Educational Codeforces Round 163 Editorial
2280 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