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4209 Arthur and Table brute force data structures dp greedy math sortings Statement C Codeforces Round 311 (Div. 2) {557} PROGRAMMING Codeforces Round #311 (Div.2) Editorial 1900
4737 Hanoi Factory brute force data structures dp greedy sortings Statement E Codeforces Round 401 (Div. 2) {777} PROGRAMMING Problem analysis of Codeforces Round #401 (Div. 2) 2000
3901 Doremy's Drying Plan (Easy Version) brute force data structures dp greedy sortings Statement C1 Codeforces Round 906 (Div. 1) {1889} PROGRAMMING 750.0 Codeforces Round 906 Editorial
8011 Nikita and LCM brute force data structures dp greedy math number theory sortings Statement C Codeforces Round 948 (Div. 2) {1977} PROGRAMMING 1750.0 129858 1900
14529 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