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159 Greedy Petya *special dfs and similar graphs greedy Statement F Первоапрельский контест 2013 {290} PROGRAMMING April Fools Day Contest 2013: editorial 2800
2469 Road Improvement *special dfs and similar graphs greedy trees Statement C VK Cup 2016 - Квалификация 2 {638} PROGRAMMING 2100
3205 Cycle In Maze *special dfs and similar graphs greedy shortest paths Statement C VK Cup 2017 - Квалификация 1 {769} PROGRAMMING Tutorial 1800