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Kingdom of Obsession Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 200 Accepted Submission(s): 阅读全文
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Candy Distribution Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6033 Accepted: 3351 Description N children standing in circle who are nu 阅读全文
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Permutations Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3041 Accepted: 1641 Description We remind that the permutation of some final s 阅读全文
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这个题多了一个操作难度直线上升,看完题解才会写 有一棵点数为 N 的树,以点 1 为根,且树点有边权。然后有 M 个操作,分为三种:操作 1 :把某个节点 x 的点权增加 a 。操作 2 :把某个节点 x 为根的子树中所有点的点权都增加 a 。操作 3 :询问某个节点 x 到根的路径中所有点的点权和 阅读全文
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Catenyms Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11648 Accepted: 3036 Description A catenym is a pair of words separated by a perio 阅读全文
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John's trip Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 8641 Accepted: 2893 Special Judge Description Little Johnny has got a new car. 阅读全文