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Name
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Index
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971 Gellyfish and Eternal Violet combinatorics dp greedy math meet-in-the-middle probabilities Statement C Codeforces Round 1028 (Div. 1) {2115} PROGRAMMING 1750.0 Codeforces Round 1028 (Div.1, Div.2) Editorial
9392 Segments Covering dp probabilities Statement D Educational Codeforces Round 181 (Rated for Div. 2) {2125} PROGRAMMING Educational Codeforces Round 181 Editorial
114 Inter Active (Hard Version) binary search bitmasks constructive algorithms graphs implementation interactive math probabilities Statement G2 Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} PROGRAMMING 2750.0 Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial
853 23 Rises Again brute force data structures dfs and similar dp flows graphs implementation probabilities trees Statement H Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} PROGRAMMING 4000.0 Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial
1252 Prime Gaming (Hard Version) bitmasks combinatorics dp probabilities Statement E2 Codeforces Round 1049 (Div. 2) {2140} PROGRAMMING 1000.0 Codeforces Round 1049 (Div. 2) Editorial
2701 Buratsuta 3 binary search brute force data structures divide and conquer probabilities Statement G Codeforces Round 1054 (Div. 3) {2149} PROGRAMMING __rose
605 Hidden Single (Version 2) divide and conquer interactive math probabilities Statement E2 Codeforces Round 1053 (Div. 1) {2150} PROGRAMMING 1750.0 Editorial of Codeforces Round 1053 (Div. 1, Div. 2)
1352 Hidden Single (Version 1) divide and conquer interactive math probabilities sortings Statement E1 Codeforces Round 1053 (Div. 1) {2150} PROGRAMMING 2000.0 Editorial of Codeforces Round 1053 (Div. 1, Div. 2)
460 Isaac's Queries brute force constructive algorithms dfs and similar divide and conquer greedy interactive math probabilities Statement G Codeforces Round 1066 (Div. 1 + Div. 2) {2157} PROGRAMMING 3000.0 Codeforces Round 1066 (Div. 1 + Div. 2) Editorial
18746 Even Modulo Pair brute force probabilities Statement B Codeforces Global Round 30 (Div. 1 + Div. 2) {2164} PROGRAMMING 750.0 Codeforces Global Round 30 Editorial
2312 Removal of a Sequence (Hard Version) binary search constructive algorithms divide and conquer greedy implementation math number theory probabilities Statement D2 Educational Codeforces Round 184 (Rated for Div. 2) {2169} PROGRAMMING Educational Codeforces Round 184 Editorial
1568 Shiro's Mirror Duel interactive probabilities Statement E Codeforces Round 1068 (Div. 2) {2173} PROGRAMMING 2250.0
1200 Beautiful Patterns (Easy Version) math probabilities Statement C1 Codeforces Round 1069 (Div. 1) {2174} PROGRAMMING 1500.0 Codeforces Round 1069 Editorial
1053 Beautiful Patterns (Hard Version) math probabilities Statement C2 Codeforces Round 1069 (Div. 1) {2174} PROGRAMMING 500.0 Codeforces Round 1069 Editorial
410 Control Car (Easy Version) combinatorics dp probabilities Statement F1 Codeforces Global Round 31 (Div. 1 + Div. 2) {2180} PROGRAMMING 2500.0 Codeforces Global Round 31
229 Control Car (Hard Version) combinatorics dp probabilities Statement F2 Codeforces Global Round 31 (Div. 1 + Div. 2) {2180} PROGRAMMING 750.0 Codeforces Global Round 31
721 Jinx or Jackpot brute force dp math probabilities Statement J 2025-2026 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2181} PROGRAMMING Tutorial
142 LLM Training math Statement L 2025-2026 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2181} PROGRAMMING Tutorial
978 Prufer Vertex combinatorics dsu number theory probabilities trees Statement D Codeforces Round 1073 (Div. 1) {2190} PROGRAMMING 2250.0 Codeforces Round 1073 (Div. 1, Div. 2) Editorial
179 Fish Fight dp math probabilities Statement F Codeforces Round 1081 (Div. 2) {2192} PROGRAMMING 3000.0 Codeforces Round 1081 (Div. 2) Editorial
1089 Operation Permutation combinatorics dp math probabilities Statement G Codeforces Round 1084 (Div. 3) {2200} PROGRAMMING Codeforces Round 1084 (Div. 3) Editorial
814 Interval Game bitmasks combinatorics dp games greedy math probabilities Statement F Codeforces Round 1091 (Div. 2) and CodeCraft 26 {2217} PROGRAMMING 2750.0 Tutorial
1303 Coloring a Red Black Tree dp greedy probabilities trees Statement C Codeforces Round 1093 (Div. 1) {2219} PROGRAMMING 1750.0 Codeforces Round 1093 (Div. 1, Div. 2) Editorial
1186 Covering Points with Circles constructive algorithms data structures geometry probabilities Statement E Educational Codeforces Round 189 (Rated for Div. 2) {2225} PROGRAMMING Tutorial