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8330 Escape The Maze (easy version) dfs and similar greedy shortest paths trees two pointers Statement E1 Codeforces Round 756 (Div. 3) {1611} PROGRAMMING Tutorial 1700
4309 Escape The Maze (hard version) dfs and similar dp greedy shortest paths trees two pointers Statement E2 Codeforces Round 756 (Div. 3) {1611} PROGRAMMING Tutorial 2000