摘要：
Intersecting Lines Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 16311 Accepted: 7040 Description We all know that a pair of distinct poi 阅读全文
摘要：
Treasure Hunt Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 7217 Accepted: 2965 Description Archeologists from the Antiquities and Curios 阅读全文
摘要：
Segments Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 14918 Accepted: 4728 Description Given n segments in the two dimensional space, wr 阅读全文
摘要：
[USACO15OPEN]回文的路径Palindromic Paths 题目描述 Farmer John's farm is in the shape of an N \times NN×N grid of fields (1 \le N \le 5001≤N≤500), each labeled 阅读全文