UnDefined

摘要： Problem Statement There are N cards placed on a grid with H rows and W columns of squares. The i-th card has an integer Ai written on it, and it is pl 阅读全文

摘要： E. Goods transportation time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output There are n cities l 阅读全文

摘要： Angle Beats Time Limit: 20000/15000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 318 Accepted Submission(s): 43 P 阅读全文

摘要： 巧妙的时间分治思想 根据通道的大小的大小建立一棵线段树。 对于每条边，根据它 l 和 r的大小把它放到线段树对应的位置。 然后从根开始dfs，每经过一个结点，就把结点存的边都加进来，通过并查集维护，跑到叶子结点的时候，判断一下1和n在不在同一个并查集中，在的话表明叶子节点所代表的大小可以使得主角从1 阅读全文

摘要： QTREE4 - Query on a tree IV #tree You are given a tree (an acyclic undirected connected graph) with N nodes, and nodes numbered 1,2,3…,N. Each edge ha 阅读全文

摘要： 2152: 聪聪可可 Time Limit: 3 Sec Memory Limit: 259 MB Submit: 5797 Solved: 3086 [Submit][Status][Discuss] Description 聪聪和可可是兄弟俩，他们俩经常为了一些琐事打起来，例如家中只剩下最后一根 阅读全文

摘要： Housewife Wind Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 16873 Accepted: 4602 Description After their royal wedding, Jiajia and Wind 阅读全文

摘要： List wants to travel Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 1521 Accepted Submission( 阅读全文

摘要： I Curse Myself Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 2911 Accepted Submission(s): 67 阅读全文

摘要： Sticks Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 162067 Accepted: 38914 Description George took sticks of the same length and cut the 阅读全文