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8832 Blood Cousins binary search data structures dfs and similar trees Statement E Codeforces Round 130 (Div. 2) {208} PROGRAMMING 4930 2400
4470 Blood Cousins Return binary search data structures dfs and similar dp sortings Statement E Codeforces Round 151 (Div. 2) {246} PROGRAMMING Codeforces Round #151 (Div. 2) Tutorial 2300
1720 Dima and Trap Graph binary search data structures dfs and similar dsu shortest paths two pointers Statement D Codeforces Round 214 (Div. 2) {366} PROGRAMMING Codeforces Round #214 (Div. 2) — Tutorial 2400
1127 Choosing Subtree is Fun binary search data structures dfs and similar trees two pointers Statement D Codeforces Round 219 (Div. 1) {372} PROGRAMMING 9944 2600
8296 A and B and Lecture Rooms binary search data structures dfs and similar dp trees Statement E Codeforces Round 294 (Div. 2) {519} PROGRAMMING 2300
485 Berland Miners binary search data structures dfs and similar greedy trees Statement A VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) {533} PROGRAMMING 3000
3344 Generating Sets binary search data structures dfs and similar greedy strings trees Statement D Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined) {722} PROGRAMMING Tutorial 1900
5098 Alyona and a tree binary search data structures dfs and similar graphs trees Statement B Codeforces Round 381 (Div. 1) {739} PROGRAMMING 48582 2000
1296 Bipartite Segments binary search data structures dfs and similar dsu graphs two pointers Statement C Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 2500
9151 Recursive Queries binary search data structures dfs and similar Statement B ICM Technex 2018 and Codeforces Round 463 (Div. 1 + Div. 2, combined) {932} PROGRAMMING 57796 1300
2049 Company binary search data structures dfs and similar greedy trees Statement E Codeforces Round 520 (Div. 2) {1062} PROGRAMMING Tutorial 2300
1033 Cookies binary search data structures dfs and similar dp games trees Statement F Codeforces Round 530 (Div. 2) {1099} PROGRAMMING E 2300
7159 Cow and Fields binary search data structures dfs and similar graphs greedy shortest paths sortings Statement D Codeforces Round 621 (Div. 1 + Div. 2) {1307} PROGRAMMING 2000.0 Codeforces Round #621 (Div. 1 + Div. 2) Editorial 1900
2515 Weights Division (hard version) binary search data structures dfs and similar greedy trees two pointers Statement E2 Codeforces Round 661 (Div. 3) {1399} PROGRAMMING Codeforces Round #661 (Div. 3) Editorial
243 Alphabetic Tree binary search data structures dfs and similar hashing string suffix structures strings trees Statement G Codeforces Round 758 (Div.1 + Div. 2) {1608} PROGRAMMING 2750.0 Editorial of Codeforces Round #758 (Div.1 + Div. 2)
6462 Nearest Excluded Points binary search data structures dfs and similar graphs shortest paths Statement D Educational Codeforces Round 124 (Rated for Div. 2) {1651} PROGRAMMING Educational Codeforces Round 124 Editorial
9674 Path Prefixes binary search data structures dfs and similar implementation trees Statement G Codeforces Round 811 (Div. 3) {1714} PROGRAMMING Codeforces Round #811 (Div. 3) Editorial
6216 Reset K Edges binary search data structures dfs and similar graphs greedy trees Statement D Educational Codeforces Round 136 (Rated for Div. 2) {1739} PROGRAMMING Educational Codeforces Round 136 Editorial
1026 The Boss's Identity binary search bitmasks data structures dfs and similar greedy math sortings Statement F Codeforces Round 882 (Div. 2) {1847} PROGRAMMING 3000.0 Tutorial
1458 wxhtzdy ORO Tree binary search bitmasks data structures dfs and similar math trees Statement G Codeforces Round 900 (Div. 3) {1878} PROGRAMMING Codeforces round #900 (Div.3) Editorial
5567 Collapsing Strings binary search data structures dfs and similar hashing strings trees Statement E Educational Codeforces Round 159 (Rated for Div. 2) {1902} PROGRAMMING Educational Codeforces Round 159 Editorial
1272 Tree Queries binary search data structures dfs and similar implementation trees Statement E Codeforces Round 914 (Div. 2) {1904} PROGRAMMING 2750.0 Codeforces Round 914 (Div. 2) Editorial
1190 Smooth Sailing (Easy Version) binary search data structures dfs and similar dsu graphs Statement F1 Codeforces Round 919 (Div. 2) {1920} PROGRAMMING 2500.0 Editorial for Codeforces Round #919 (Div. 2)
605 Frequency Mismatch (Hard Version) binary search data structures dfs and similar hashing probabilities trees Statement F2 Codeforces Round 940 (Div. 2) and CodeCraft-23 {1957} PROGRAMMING 1250.0 Codeforces Round #940 and CodeCraft-23 (Div. 2) Editorial 2700
2861 Chain Queries binary search data structures dfs and similar implementation trees Statement E Codeforces Round 947 (Div. 1 + Div. 2) {1975} PROGRAMMING 2000.0 editorial_zh.pdf 2100
1098 Catch the Mole(Hard Version) binary search data structures dfs and similar interactive trees Statement E2 Codeforces Round 960 (Div. 2) {1990} PROGRAMMING 750.0 Video Tutorial
3770 Shorten the Array binary search brute force data structures dfs and similar greedy strings trees two pointers Statement G Codeforces Round 1016 (Div. 3) {2093} PROGRAMMING Codeforces Round 1016 (Div. 3) Editorial