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1034 Freezing with Style binary search data structures divide and conquer trees Statement E Codeforces Round 107 (Div. 1) {150} PROGRAMMING Tutorial 3000
4077 Xor Tree binary search bitmasks data structures divide and conquer dp trees Statement C Codeforces Round 683 (Div. 1, by Meet IT) {1446} PROGRAMMING 1250.0 E
1334 Comfortably Numb binary search bitmasks data structures divide and conquer dsu strings trees two pointers Statement F Codeforces Round 845 (Div. 2) and ByteRace 2023 {1777} PROGRAMMING 2750.0 Codeforces Round #845 (Div. 2) and ByteRace 2023 Editorial
877 XOR Partition binary search bitmasks data structures divide and conquer greedy trees Statement F Educational Codeforces Round 152 (Rated for Div. 2) {1849} PROGRAMMING 118752
660 Frequency Mismatch (Easy Version) binary search data structures divide and conquer hashing probabilities trees Statement F1 Codeforces Round 940 (Div. 2) and CodeCraft-23 {1957} PROGRAMMING 2250.0 Codeforces Round #940 and CodeCraft-23 (Div. 2) Editorial 2600
204 Al Fine (Maximizing Version) binary search data structures divide and conquer greedy trees Statement F1 Codeforces Round 1077 (Div. 1) {2187} PROGRAMMING 2000.0 Codeforces Round 1077 (Div. 1, Div. 2) Editorial