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646 Can Bash Save the Day? data structures divide and conquer graphs trees Statement G Codecraft-17 and Codeforces Round 391 (Div. 1 + Div. 2, combined) {757} PROGRAMMING CodeCraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) Editorial 2500
511 Sherlock's bet to Moriarty constructive algorithms data structures divide and conquer geometry graphs implementation trees Statement F ICM Technex 2017 and Codeforces Round 400 (Div. 1 + Div. 2, combined) {776} PROGRAMMING ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) Editorial 2700
716 Forced Online Queries Problem data structures divide and conquer dsu graphs trees Statement F Educational Codeforces Round 72 (Rated for Div. 2) {1217} PROGRAMMING Educational Codeforces Round 72 Editorial 2800
278 Journey data structures divide and conquer graphs trees Statement F Codeforces Round 635 (Div. 1) {1336} PROGRAMMING 3250.0 Codeforces Round #635 Editorial 3600
895 Jumping Around data structures divide and conquer dp dsu graphs shortest paths trees Statement F Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
1148 Cats on the Upgrade (easy version) data structures dfs and similar divide and conquer dp graphs trees Statement E1 Codeforces Round 765 (Div. 2) {1625} PROGRAMMING 2000.0 Editorial of Codeforces Round #765 (Div. 2)
504 Air Reform data structures dfs and similar divide and conquer dsu graphs implementation trees Statement E Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics) {1648} PROGRAMMING 2500.0 Codeforces Round #775 Editorial
519 Teleportation in Byteland data structures divide and conquer graphs shortest paths trees Statement F Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 3000.0 Video solutions from Geothermal.
43 Burenka and Pether *special data structures dfs and similar divide and conquer dsu graphs sortings trees Statement C XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} PROGRAMMING