昨日明眸

Divisibility Description Consider an arbitrary sequence of integers. One can place + or - operators between integers in the sequence, thus deriving different arithmetical expressions that

Seek the Name, Seek the Fame Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 6473 Accepted: 2991 Description The little cat is so famous, t

Description For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to know whether the prefix is a periodic string. That is,

Power Strings Time Limit:3000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Description Given two strings a and b we define a*b to be their concatenation. For

poj 1703 Find them, Catch them （分组并查集 偏移向量实现） 标签： 并查集偏移向量poj1703 2014-03-14 13:29 883人阅读 评论(0) 收藏 举报  分类： ACM-数据结构（15）  ACM汇总（73）  ACM-并查集（12）  版权声明：本文为博主原创文章，未经博主允许不得转载。

Paths on a Grid Time Limit:1000MS     Memory Limit:30000KB     64bit IO Format:%lld & %llu Submit Status Description Imagine you are attending your math lesson at school. Once again,

Wormholes Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%lld & %llu Submit Status Description While exploring his many farms, Farmer John has discovered a number of

Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <= 500). The grid contains K asteroids (1 <= K <= 10,000), which are conven