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2124 4-point polyline brute force constructive algorithms geometry trees Statement B MemSQL Start[c]UP 2.0 - Round 1 {452} PROGRAMMING MemSQL Start[c]UP 2.0 Round 1 and 2 Editorials 1800
8384 Paint the Tree brute force constructive algorithms dp graphs implementation trees Statement D Codeforces Round 592 (Div. 2) {1244} PROGRAMMING Codeforces Round #592 (Div. 2) Tutorial 1700
2023 Delete a Segment brute force constructive algorithms data structures dp graphs sortings trees two pointers Statement E Codeforces Round 613 (Div. 2) {1285} PROGRAMMING Codeforces Round #613 (Div. 2) Editorial 2300
2837 Construct the Binary Tree brute force constructive algorithms dfs and similar trees Statement E Codeforces Round 624 (Div. 3) {1311} PROGRAMMING 74224 2400
2847 Dogeforces brute force constructive algorithms divide and conquer dsu greedy implementation trees Statement D Educational Codeforces Round 105 (Rated for Div. 2) {1494} PROGRAMMING Educational Codeforces Round 105 Editorial
16387 Mocha and Diana (Easy Version) brute force constructive algorithms dsu graphs greedy trees Statement D1 Codeforces Round 738 (Div. 2) {1559} PROGRAMMING 1500.0 Tutorial (en) 1400
3182 Mocha and Diana (Hard Version) brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers Statement D2 Codeforces Round 738 (Div. 2) {1559} PROGRAMMING 1500.0 Tutorial (en) 2500
1164 Tree Recovery bitmasks brute force constructive algorithms dfs and similar dsu graphs trees Statement F Codeforces Global Round 21 {1696} PROGRAMMING 2500.0 Editorial of Codeforces Global Round 21
3735 Build a Tree and That Is It brute force constructive algorithms greedy implementation trees Statement F Codeforces Round 811 (Div. 3) {1714} PROGRAMMING Codeforces Round #811 (Div. 3) Editorial
4229 Edge Split brute force constructive algorithms dfs and similar graphs probabilities trees Statement D Codeforces Round 819 (Div. 1 + Div. 2) and Grimoire of Code Annual Contest 2022 {1726} PROGRAMMING 2000.0 Codeforces Round #819 (Div. 1 + Div. 2) and Grimoire of Code Annual Contest 2022 Editorial
10638 SlavicG's Favorite Problem bitmasks brute force constructive algorithms data structures dfs and similar graphs greedy Statement G Codeforces Round 835 (Div. 4) {1760} PROGRAMMING 109348
1238 Doremy's Experimental Tree brute force constructive algorithms dfs and similar dsu sortings trees Statement F Codeforces Global Round 24 {1764} PROGRAMMING 2250.0 Codeforces Global Round 24 Editorial
671 Segment Covering brute force combinatorics constructive algorithms data structures trees Statement G Polynomial Round 2022 (Div. 1 + Div. 2, Rated, Prizes!) {1774} PROGRAMMING 3250.0 Polynomial Round 2022 (Div. 1 + Div. 2) Editorial
1358 Bracket Insertion brute force combinatorics constructive algorithms dp math trees Statement F VK Cup 2022 - Отборочный раунд (Engine) {1781} PROGRAMMING 3250.0 Tutorial
5207 Fish Graph brute force constructive algorithms dfs and similar graphs trees Statement B Codeforces Round 869 (Div. 1) {1817} PROGRAMMING 1000.0 Codeforces Round #869 (Div.1, Div.2) Editorial
3235 Trees and Segments binary search brute force constructive algorithms data structures dp greedy two pointers Statement D Codeforces Round 893 (Div. 2) {1858} PROGRAMMING 2000.0 Codeforces Round #893 (Div. 2) Editorial 2200
549 Most Different Tree brute force constructive algorithms dfs and similar greedy hashing Statement F Codeforces Round 897 (Div. 2) {1867} PROGRAMMING 4000.0
1603 Interactive Game with Coloring brute force constructive algorithms graphs implementation interactive math trees Statement E Educational Codeforces Round 155 (Rated for Div. 2) {1879} PROGRAMMING 120773 2400
621 Balanced Unshuffle (Medium) brute force constructive algorithms trees Statement A2 Helvetic Coding Contest 2024 online mirror (teams allowed, unrated) {1970} PROGRAMMING Helvetic Coding Contest 2024 Editorial 2400
5933 Non Prime Tree brute force constructive algorithms dfs and similar greedy number theory trees two pointers Statement D Codeforces Round 992 (Div. 2) {2040} PROGRAMMING 2000.0 Codeforces Round #992 (Div.2) Editorial
15329 Cyclic Merging brute force constructive algorithms graphs greedy trees Statement A Codeforces Round 1064 (Div. 1) {2165} PROGRAMMING 500.0 148452