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942 Pumping Stations brute force dfs and similar divide and conquer flows graphs greedy trees Statement E Codeforces Round 200 (Div. 1) {343} PROGRAMMING Codeforces Round #200 Tutorial 2800
4231 Amr and Chemistry brute force graphs greedy math shortest paths Statement C Codeforces Round 312 (Div. 2) {558} PROGRAMMING Codeforces Round #312 (Div. 2) Editorial 2000
6715 Relatively Prime Graph brute force constructive algorithms graphs greedy math Statement D Educational Codeforces Round 47 (Rated for Div. 2) {1009} PROGRAMMING 60630 1700
1044 Abandoning Roads brute force dp graphs greedy Statement D Codeforces Round 556 (Div. 1) {1149} PROGRAMMING 66783 2900
19572 Princesses and Princes brute force graphs greedy Statement B Educational Codeforces Round 84 (Rated for Div. 2) {1327} PROGRAMMING Educational Codeforces Round 84 Editorial 1300
4165 Challenges in school №41 brute force constructive algorithms games graphs greedy implementation sortings Statement D Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 1750.0 Codeforces Round #632 (Div. 2) editorial
5816 Weights Distributing brute force graphs greedy shortest paths sortings Statement E Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 2400
823 Rearrange brute force constructive algorithms graphs greedy sortings Statement D Codeforces Round 659 (Div. 1) {1383} PROGRAMMING 1750.0 Codeforces Round #659 Editorial
2238 Water Level brute force graphs greedy implementation math Statement E Codeforces Round 689 (Div. 2, based on Zed Code Competition) {1461} PROGRAMMING 2250.0 Codeforces Round #689 (Div. 2). Editorial
15541 Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math Statement C Educational Codeforces Round 104 (Rated for Div. 2) {1487} PROGRAMMING 87873
8444 Pekora and Trampoline brute force data structures dp graphs greedy implementation Statement C Codeforces Global Round 13 {1491} PROGRAMMING 1000.0 Codeforces Global Round 13 Editorial
12544 Min Cost String brute force constructive algorithms dfs and similar graphs greedy Statement D Educational Codeforces Round 107 (Rated for Div. 2) {1511} PROGRAMMING 89634
17855 Web of Lies brute force graphs greedy Statement A Codeforces Round 736 (Div. 1) {1548} PROGRAMMING 500.0 Codeforces Round 736 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
5403 Array Stabilization (AND version) binary search brute force graphs greedy implementation math number theory shortest paths Statement F Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
9256 Menorah brute force graphs greedy math Statement C Codeforces Global Round 18 {1615} PROGRAMMING 1750.0 Global Round 18 Editorial
2011 AND-MEX Walk bitmasks brute force data structures dfs and similar dsu graphs greedy Statement E Codeforces Round 782 (Div. 2) {1659} PROGRAMMING 2250.0 Codeforces Round #782 (Div. 2) Editorial
21037 Getting Zero brute force dfs and similar graphs greedy shortest paths Statement B Educational Codeforces Round 126 (Rated for Div. 2) {1661} PROGRAMMING Educational Codeforces Round 126 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
4116 Timofey and Black-White Tree brute force dfs and similar divide and conquer graphs greedy math shortest paths trees Statement F Codeforces Round 847 (Div. 3) {1790} PROGRAMMING 111948
15535 Unforgivable Curse (hard version) brute force constructive algorithms constructive algorithms dsu graphs greedy Statement E2 Codeforces Round 855 (Div. 3) {1800} PROGRAMMING Codeforces Round 855 (Div. 3) Editorial
15910 Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy Statement E1 Codeforces Round 855 (Div. 3) {1800} PROGRAMMING Codeforces Round 855 (Div. 3) Editorial
4815 Tenzing and His Animal Friends brute force constructive algorithms graphs greedy shortest paths Statement D CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!) {1842} PROGRAMMING 1500.0 CodeTON Round 5 Editorial
1902 Infinite Card Game brute force dfs and similar games graphs greedy sortings Statement E Educational Codeforces Round 157 (Rated for Div. 2) {1895} PROGRAMMING Educational Codeforces Round 157 Editorial
2142 Sasha and the Happy Tree Cutting bitmasks brute force dp fft graphs greedy trees Statement E Codeforces Round 926 (Div. 2) {1929} PROGRAMMING 2500.0 Codeforces Round #926 (Div. 2) Editorial.
17627 Permutation Game brute force dfs and similar games graphs greedy math Statement D Codeforces Round 943 (Div. 3) {1968} PROGRAMMING 129096 1300
23567 Substring and Subsequence bitmasks brute force dp graphs greedy hashing strings trees Statement B Educational Codeforces Round 167 (Rated for Div. 2) {1989} PROGRAMMING Educational Codeforces Round 167 Editorial
3015 Cases bitmasks brute force combinatorics dfs and similar dp graphs greedy strings Statement D Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 2250.0 Video Tutorial
3213 Call During the Journey binary search brute force graphs greedy shortest paths Statement G Codeforces Round 966 (Div. 3) {2000} PROGRAMMING 132689
1959 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
1399 C+K+S brute force constructive algorithms dfs and similar graphs greedy hashing math strings Statement C Codeforces Round 980 (Div. 1) {2023} PROGRAMMING 1500.0 135341
7256 Skipping brute force data structures dp graphs greedy shortest paths Statement B Codeforces Round 980 (Div. 1) {2023} PROGRAMMING 1000.0 135341
15009 Remove Exactly Two brute force data structures dp graphs greedy sortings trees Statement C Codeforces Round 1000 (Div. 2) {2063} PROGRAMMING 1500.0 Codeforces Round 1000 (Div. 2) — Editorial
1557 Gleb and Boating brute force constructive algorithms data structures dp graphs greedy math shortest paths Statement G Codeforces Round 1013 (Div. 3) {2091} PROGRAMMING Codeforces Round 1013 (Div. 3) Editorial
5300 Omg Graph brute force dsu graphs greedy shortest paths sortings Statement G Codeforces Round 1029 (Div. 3) {2117} PROGRAMMING Codeforces Round 1029 (Div. 3) Editorial
906 Sea, You & copriMe brute force combinatorics constructive algorithms graphs greedy math number theory Statement H Codeforces Round 1042 (Div. 3) {2131} PROGRAMMING Codeforces Round 1042 (Div. 3) Editorial
15329 Cyclic Merging brute force constructive algorithms graphs greedy trees Statement A Codeforces Round 1064 (Div. 1) {2165} PROGRAMMING 500.0 148452