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F - Prime Path The ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the 阅读全文
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5157: Treasure Map 题目描述 You have found a treasure map! The map leads you to several gold mines. The mines each produce gold each day, but the amount o 阅读全文
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DreamGrid has classmates numbered from to . Some of them are boys and the others are girls. Each classmate has some gems, and more specifically, the - 阅读全文
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B. Queue at the School time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output B. Queue at the S 阅读全文
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B. Taxi time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output B. Taxi time limit per test 3 se 阅读全文
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5093: Orderly Class 题目描述 Ms. Thomas is managing her class of n students.She placed all her students in a line, and gave the i-th student from the left 阅读全文
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小希的迷宫 上次Gardon的迷宫城堡小希玩了很久（见Problem B），现在她也想设计一个迷宫让Gardon来走。但是她设计迷宫的思路不一样，首先她认为所有的通道都应该是双向连通的，就是说如果有一个通道连通了房间A和B，那么既可以通过它从房间A走到房间B，也可以通过它从房间B走到房间A，为了提高 阅读全文
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Hopscotch 题目描述 You’re playing hopscotch! You start at the origin and your goal is to hop to the lattice point (N, N). A hop consists of going from lat 阅读全文
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5431: Barareh on Fire 题目描述 The Barareh village is on fire due to the attack of the virtual enemy. Several places are already on fire and the fire is s 阅读全文