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508 Donkey and Stars data structures dp geometry math sortings Statement D Codeforces Round 152 (Div. 1) {249} PROGRAMMING Разбор задач Codeforces Round #152 2600
4839 Vanya and Triangles brute force combinatorics data structures geometry math sortings Statement D Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 1900
2049 Leaving the Bar brute force data structures geometry greedy math sortings Statement C Codeforces Round 492 (Div. 1) [Thanks, uDebug!] {995} PROGRAMMING Editorial for Codeforces Round #492 [Thanks u-Debug!] 2200
1035 Geometers Anonymous Club data structures geometry math sortings Statement F Codeforces Round 574 (Div. 2) {1195} PROGRAMMING Разбор Codeforces Round #574 (Div. 2) 2700
141 Mixture *special data structures geometry math sortings Statement B Baltic Olympiad in Informatics 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated) {1386} PROGRAMMING T
18633 Weird Sum combinatorics data structures geometry math matrices sortings Statement A Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics) {1648} PROGRAMMING 500.0 Codeforces Round #775 Editorial
15373 The Morning Star combinatorics data structures geometry implementation math sortings Statement G Codeforces Round 886 (Div. 4) {1850} PROGRAMMING Codeforces Round #886 (Div. 4) Editorial
4380 Field Division (easy version) data structures geometry math sortings Statement F1 Codeforces Round 950 (Div. 3) {1980} PROGRAMMING 130135