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3685 Segments Removal data structures dsu flows implementation two pointers Statement E Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 2100
4141 Into Blocks (easy version) data structures dsu greedy implementation two pointers Statement G1 Codeforces Round 584 - Dasha Code Championship - отборочный раунд (рейтинговый, открыт для всех, Div. 1 + Div. 2) {1209} PROGRAMMING 69791 2000
1353 Playlist data structures dsu implementation two pointers Statement B Codeforces Round 709 (Div. 1, основан на Финале Технокубка 2021) {1483} PROGRAMMING 1000.0 Technocup 2021: Final Round and Codeforces Round #709 — tutorial
4259 Vlad and the Mountains data structures dsu graphs implementation sortings trees two pointers Statement G Codeforces Round 888 (Div. 3) {1851} PROGRAMMING 118667
5879 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
4122 Rectangles data structures dsu implementation two pointers Statement B Codeforces Round 1058 (Div. 1) {2159} PROGRAMMING 1500.0 Codeforces Round 1058 Editorial
1694 Double-Rift Dial data structures dfs and similar dsu implementation two pointers Statement C Codeforces Round 1112 (Div. 1) {2249} PROGRAMMING 1750.0 Codeforces Round 1112 (Div. 1, Div. 2) Editorial