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Computer TransformationTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6084Accepted Submission(s):... 阅读全文
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LCISTime Limit: 6000/2000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4437Accepted Submission(s): 2006Problem Descri... 阅读全文
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敌兵布阵Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 46775Accepted Submission(s): 19828Problem Desc... 阅读全文
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平方和总时间限制:3000ms内存限制:65536kB描述给出n(1#include#includeusing namespace std;#define N 500005#define ll long longll add[N>1; add[rt>1; build(l,m,rt... 阅读全文
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回文字符串时间限制：3000ms | 内存限制：65535KB难度：4描述所谓回文字符串，就是一个字符串，从左到右读和从右到左读是完全一样的，比如"aba"。当然，我们给你的问题不会再简单到判断一个字符串是不是回文字符串。现在要求你，给你一个字符串，可在任意位置添加字符，最少再添加几个字符，可以使这... 阅读全文
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统计难题Time Limit: 4000/2000 MS (Java/Others)Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 19054Accepted Submission(s): 8418Problem Desc... 阅读全文
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Housewife WindDescriptionAfter their royal wedding, Jiajia and Wind hid away in XX Village, to enjoy their ordinary happy life. People in XX Village l... 阅读全文
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TreeDescriptionYou are given a tree withNnodes. The tree’s nodes are numbered 1 throughNand its edges are numbered 1 throughN− 1. Each edge is associa... 阅读全文
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B-numberTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2668 Accepted Submission(s): 1467Problem... 阅读全文
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The Unique MSTDescriptionGiven a connected undirected graph, tell if its minimum spanning tree is unique.Definition 1 (Spanning Tree): Consider a conn... 阅读全文