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Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
3297 New Year Santa Network combinatorics dfs and similar graphs trees Statement D Good Bye 2014 {500} PROGRAMMING Tutorial 2 1900
501 Tree nesting combinatorics graphs trees Statement F Educational Codeforces Round 17 {762} PROGRAMMING Tutorial 2900
1007 Singer House combinatorics dp graphs trees Statement D Codeforces Round 424 (Div. 1, rated, based on VK Cup Finals) {830} PROGRAMMING Codeforces Round #424 Editorial 2800
2146 Desk Disorder combinatorics dfs and similar dsu graphs trees Statement E MemSQL Start[c]UP 3.0 - Round 1 {859} PROGRAMMING Tutorial 2100
615 Around the World bitmasks combinatorics dfs and similar dp graphs graphs math trees Statement D Codeforces Round 618 (Div. 1) {1299} PROGRAMMING 1750.0 Codeforces Round #618 Editorial 2900
268 Star Trek *special combinatorics dfs and similar dp games graphs matrices trees Statement C Central-European Olympiad in Informatics, CEOI 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated) {1402} PROGRAMMING Editorial
6776 Number of Simple Paths combinatorics data structures dfs and similar dsu graphs trees Statement E Codeforces Round 686 (Div. 3) {1454} PROGRAMMING Codeforces Round #686 (Div. 3) Editorial
1581 BFS Trees combinatorics dfs and similar graphs math shortest paths trees Statement D Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 2000.0 Codeforces Round #706 Editorial
2747 Control of Randomness combinatorics dfs and similar graphs greedy math probabilities trees Statement E Codeforces Round 992 (Div. 2) {2040} PROGRAMMING 2250.0 Codeforces Round #992 (Div.2) Editorial
1974 Baggage Claim combinatorics dsu graphs math trees Statement B Codeforces Round 1021 (Div. 1) {2097} PROGRAMMING 1000.0 142316
3449 Tree Colorings combinatorics dp graphs math trees Statement E Educational Codeforces Round 180 (Rated for Div. 2) {2112} PROGRAMMING Educational Codeforces Round 180 — Editorial
7033 Root was Built by Love, Broken by Destiny combinatorics dfs and similar graphs trees Statement D Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} PROGRAMMING 2000.0 Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial
366 SubMST combinatorics graphs trees Statement F Pinely Round 5 (Div. 1 + Div. 2) {2161} PROGRAMMING 3250.0
1956 Deconstruction Tree combinatorics data structures dp graphs trees Statement E Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) {2229} PROGRAMMING 2500.0 Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) Editorial
5344 Fair and Square combinatorics dp graphs math number theory trees Statement E Codeforces Round 1107 (Div. 3) {2241} PROGRAMMING