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77C - Beavermuncher-0xFF (Codeforces - Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only)) categories

Category Problems Count
1 Dynamic Programming 1210
2 Greedy 599
3 DFS & BFS & Dijkstra 565
4 Codeforces Div. 2 - E Problems 439
5 trees 202
6 dsu 116