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Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
1890 Cactus data structures dfs and similar dp graphs trees Statement E Codeforces Round 143 (Div. 2) {231} PROGRAMMING 2400
1615 Little Girl and Problem on Trees data structures graphs trees Statement E Codeforces Round 169 (Div. 2) {276} PROGRAMMING Codeforces Round #169 — Unofficial Editorial 2300
5855 Water Tree data structures dfs and similar graphs trees Statement D Codeforces Round 200 (Div. 1) {343} PROGRAMMING Codeforces Round #200 Tutorial 2100
1607 On Changing Tree data structures graphs trees Statement C Codeforces Round 232 (Div. 1) {396} PROGRAMMING 1500.0 Codeforces Round #232 Editorial (restored)
483 Big Problems for Organizers data structures graphs trees Statement D RCC 2014 Warmup (Div. 1) {418} PROGRAMMING RCC 2014 WarmUp Analysis 2700
2380 Tourists data structures dfs and similar graphs trees Statement E Codeforces Round 278 (Div. 1) {487} PROGRAMMING Tutorial 3100
1089 Ann and Half-Palindrome data structures dp graphs string suffix structures strings trees Statement E Codeforces Round 311 (Div. 2) {557} PROGRAMMING 2700
1264 Happy Tree Party data structures dfs and similar graphs math trees Statement D Codeforces Round 329 (Div. 2) {593} PROGRAMMING 2300
7958 Minimum spanning tree for each edge data structures dfs and similar ds graphs trees Statement E Educational Codeforces Round 3 {609} PROGRAMMING Editorial 2100
423 Bear and Chemistry data structures dfs and similar graphs trees Statement F VK Cup 2016 - Round 1 {639} PROGRAMMING 3300
3369 Centroids data structures dfs and similar dp graphs greedy trees Statement C AIM Tech Round 3 (Div. 1) {708} PROGRAMMING Editorial 2500
1127 Drivers Dissatisfaction data structures ds graphs trees Statement F Codeforces Round 378 (Div. 2) {733} PROGRAMMING 2500
506 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 2500
565 Timofey and a flat tree data structures graphs hashing shortest paths trees Statement D Codeforces Round 395 (Div. 1) {763} PROGRAMMING 2800
633 ALT data structures flows graphs trees Statement E Codeforces Round 406 (Div. 1) {786} PROGRAMMING 3200
1169 Best Edge Weight data structures dfs and similar graphs trees Statement D Codeforces Round 423 (Div. 1, rated, based on VK Cup Finals) {827} PROGRAMMING Codeforces Round #423 Analysis 2700
2526 Imbalance Value of a Tree data structures ds graphs trees Statement F Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2500
675 Maximum Control (medium) data structures dfs and similar graphs greedy trees Statement B2 Helvetic Coding Contest 2018 online mirror (teams allowed, unrated) {958} PROGRAMMING 2400
1316 Leaf Sets data structures dfs and similar ds graphs greedy sortings trees Statement F Codeforces Round 510 (Div. 2) {1042} PROGRAMMING Tutorial 2400
944 Tree data structures dfs and similar dp graphs trees Statement E CodeCraft-19 and Codeforces Round 537 (Div. 2) {1111} PROGRAMMING CodeCraft-19 and Codeforces Round #537 (Div. 2) Editorial 2800
567 Daleks' Invasion (hard) data structures ds graphs trees Statement E3 Helvetic Coding Contest 2019 online mirror (teams allowed, unrated) {1184} PROGRAMMING helvetic-coding-contest-2019-editorial.pdf 2500
1181 Koala and Notebook data structures dfs and similar graphs shortest paths strings trees Statement F Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2) {1209} PROGRAMMING 69791 2600
595 Forced Online Queries Problem data structures divide and conquer ds graphs trees Statement F Educational Codeforces Round 72 (Rated for Div. 2) {1217} PROGRAMMING Educational Codeforces Round 72 Editorial 2800
883 Economic Difficulties data structures dfs and similar dp flows graphs trees Statement F Codeforces Round 603 (Div. 2) {1263} PROGRAMMING Разбор Codeforces Round #603 (Div. 2) 2500
4047 Segment Tree data structures ds graphs trees Statement D Educational Codeforces Round 78 (Rated for Div. 2) {1278} PROGRAMMING Educational Codeforces Round 78 Editorial 2100
326 New Year and Social Network data structures graph matchings graphs math trees Statement F Hello 2020 {1284} PROGRAMMING Hello 2020 Editorial 3100
221 Journey data structures divide and conquer graphs trees Statement F Codeforces Round 635 (Div. 1) {1336} PROGRAMMING 3250.0 Codeforces Round #635 Editorial 3600
609 Shifting Dominoes data structures geometry graphs trees Statement G Codeforces Global Round 8 {1368} PROGRAMMING 3500.0 Codeforces Global Round 8: editorial