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2213 Kuro and GCD and XOR and SUM binary search bitmasks brute force data structures dp dsu greedy math number theory strings trees Statement D Codeforces Round 482 (Div. 2) {979} PROGRAMMING 1750.0 Codeforces Round #482 (Div. 2) Editorial 2200
3915 The Human Equation data structures dp dsu greedy Statement E Codeforces Round 843 (Div. 2) {1775} PROGRAMMING 2250.0 Codeforces Round #843 (Div. 2) Editorial
9111 Boris and His Amazing Haircut constructive algorithms data structures dp dsu greedy Statement D Hello 2023 {1779} PROGRAMMING 1500.0
1698 LuoTianyi and XOR-Tree data structures dfs and similar dp dsu greedy trees Statement C Codeforces Round 872 (Div. 1) {1824} PROGRAMMING 1750.0 CodeForces Round 872(Div. 1&2) Editorial 2500
8045 Andrey and Escape from Capygrad binary search data structures dp dsu greedy sortings two pointers Statement D Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 1750.0 Video solutions from Geothermal.
2212 Max Plus Min Plus Size data structures dp dsu greedy implementation matrices Statement D Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 1500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
1945 Digital Village (Easy Version) brute force data structures dp dsu graphs greedy implementation math shortest paths trees Statement E1 Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 1750.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
9979 Penchick and Desert Rabbit data structures dfs and similar dp dsu greedy two pointers Statement D Codeforces Round 987 (Div. 2) {2031} PROGRAMMING 2000.0 Codeforces Round 987 (Div. 2) Editorial
2403 Triangle Tree data structures dfs and similar dp dsu greedy trees Statement E Codeforces Round 1000 (Div. 2) {2063} PROGRAMMING 2750.0 Codeforces Round 1000 (Div. 2) — Editorial
12043 Rae Taylor and Trees (easy version) binary search data structures dp dsu greedy implementation trees Statement D Codeforces Round 1065 (Div. 3) {2171} PROGRAMMING Codeforces Round 1065 (Div. 3) Editorial