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1018 Anniversary data structures implementation math matrices number theory Statement C Codeforces Round 140 (Div. 1) {226} PROGRAMMING Codeforces Round #140 Editorial 2100
5241 Quiz binary search greedy math matrices number theory Statement C Codeforces Round 196 (Div. 2) {337} PROGRAMMING Codeforces Round #196 — Problems Analysis 1700
2114 GukiZ and Binary Operations combinatorics implementation math matrices number theory Statement D Codeforces Round 307 (Div. 2) {551} PROGRAMMING Tutorial 2400
1187 Lunar New Year and a Recursive Sequence math matrices number theory Statement F Codeforces Round 536 (Div. 2) {1106} PROGRAMMING Tutorial 2400
3379 Product Oriented Recurrence dp math matrices number theory Statement E Codeforces Round 566 (Div. 2) {1182} PROGRAMMING 67614 2200
5190 Count Pairs math matrices number theory two pointers Statement B Codeforces Round 572 (Div. 1) {1188} PROGRAMMING Editorial of Codeforces Round #572 2200
278 Cubic Lattice geometry math matrices number theory Statement I Codeforces Global Round 9 {1375} PROGRAMMING 4000.0 79731
7069 Infinite Set dp math matrices number theory strings Statement D Codeforces Round 772 (Div. 2) {1635} PROGRAMMING 2250.0 Codeforces Round #772 Editorial
384 Long Binary String math matrices meet-in-the-middle number theory Statement G Codeforces Round 803 (Div. 2) {1698} PROGRAMMING 3250.0 Codeforces Round #803 (Div. 2) Editorial
1190 Tree Weights bitmasks constructive algorithms data structures dfs and similar math matrices number theory trees Statement G Codeforces Round 884 (Div. 1 + Div. 2) {1844} PROGRAMMING 3500.0 Codeforces Round #884 (Div. 1 + Div. 2) Editorial