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531 Half-decay tree data structures divide and conquer dp math probabilities Statement D Codeforces Beta Round 62 {68} PROGRAMMING 2400
742 Smart Cheater data structures math probabilities Statement C Codeforces Round 107 (Div. 1) {150} PROGRAMMING Tutorial 2300
694 Memory and Casinos data structures math probabilities Statement E Codeforces Round 370 (Div. 2) {712} PROGRAMMING Codeforces Round #370 Editorial 2700
2617 Gosha is hunting brute force data structures dp flows math probabilities sortings Statement E Codeforces Round 381 (Div. 1) {739} PROGRAMMING 48582 2900
2641 Random Query data structures math probabilities two pointers Statement F Educational Codeforces Round 28 {846} PROGRAMMING 54357 2000
1524 Tree Queries data structures probabilities trees Statement D Codeforces Round 601 (Div. 1) {1254} PROGRAMMING Codeforces Round #601 Editorial 2600
4492 Beautiful Mirrors data structures dp math probabilities Statement E Codeforces Round 604 (Div. 2) {1265} PROGRAMMING Codeforces Round #604 Editorial 2100
727 LCC data structures math matrices probabilities Statement D Codeforces Round 612 (Div. 1) {1286} PROGRAMMING Codeforces Round #612 - Editorial 2900
3035 Guess Game bitmasks combinatorics constructive algorithms data structures games math probabilities strings trees Statement E Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) {1864} PROGRAMMING 2000.0 Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) Editorial