URAL 1022. Genealogical Tree
1. 题目 http://acm.timus.ru/problem.aspx?space=1&num=1022 1022. Genealogical Tree Time limit: 1.0 second Memory limit: 64 MB Background The system of Martians’ blood relations is confusing enough. …
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URAL 1280. Topological Sorting
1. 题目 http://acm.timus.ru/problem.aspx?space=1&num=1280 1280. Topological Sorting Time limit: 1.0 second Memory limit: 64 MB Michael wants to win the world championship in programming and decided …
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