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3934 Into Blocks (easy version) data structures dsu greedy implementation two pointers Statement G1 Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2) {1209} PROGRAMMING 69791 2000
5666 Set To Max (Hard Version) binary search constructive algorithms data structures dsu greedy implementation sortings two pointers Statement D2 Codeforces Round 914 (Div. 2) {1904} PROGRAMMING 750.0 Codeforces Round 914 (Div. 2) Editorial