原题地址:http://acm.uestc.edu.cn/#/problem/show/844 "你动规无力,图论不稳,数据结构松散,贪心迟钝,没一样像样的,就你还想和我同台竞技,做你的美梦!今天这场比赛,就是要让你知道你是多么 的无能!!" 不训练,无以为战.有n项能力是ACM竞赛要求的,训练则能提升,忽略则会荒废. 这m天,你能做到如何. Input 第一行两个整数n,m,分别表示有n项能力要求,共有m天. 第二行n个整数,第i个整数ai表示第i项能力的数值. 接下来m行,每行开始…

Magic boy Bi Luo with his excited tree Problem Description Bi Luo is a magic boy, he also has a migic tree, the tree has N nodes , in each node , there is a treasure, it's value is V[i], and for each edge, there is a cost C[i], which means every time…

比赛链接: http://202.197.224.59/OnlineJudge2/index.php/Contest/problems/contest_id/36 题目来源: 2014嘉杰信息杯ACM/ICPC湖南程序设计邀请赛暨第六届湘潭市程序设计竞赛 ×  Problem A A simple problem   (求N % 1 + N % 2 + ....+ N % N, 待补) ?  Problem B Path √  Problem C Range   (单调栈) √  Problem…

传递 Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 42    Accepted Submission(s): 16 Problem Description 我们称一个有向图G是传递的,当且仅当对任意三个不同的顶点a,,若G中有 一条边从a到b且有一条边从b到c ,则G中同样有一条边从a到c.我们称图G是一个竞赛图,当且仅当它是一个有…

异或密码 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 19    Accepted Submission(s): 9 Problem Description 晨晨在纸上写了一个长度为N的非负整数序列{ai }.对于这个序列的一个连续子序列{al,al+1,…,ar }晨晨可以求出其中所有数异或的结果 alxoral+1xor...xo…

A. Picking&Dancing 有一列n个石子,两人交替取石子,每次只能取连续的两个,取走后,剩下的石子仍然排成1列.问最后剩下的石子数量是奇数还是偶数. 读懂题意就没什么好说的. #include<stdio.h> int n; int main() { scanf("%d",&n); if(n%2) puts("Xiaoyu_Chen"); else puts("Yitong_Qin"); return 0;…

Alice and Bob Time Limit: 1000ms   Memory limit: 65536K 题目描述 Alice and Bob like playing games very much.Today, they introduce a new game. There is a polynomial like this: (a0*x^(2^0)+1) * (a1 * x^(2^1)+1)*.......*(an-1 * x^(2^(n-1))+1). Then Alice as…

原题链接 http://acm.csu.edu.cn/OnlineJudge/problem.php?id=1809 Description Bobo has a balanced parenthesis sequence P=p1 p2…pn of length n and q questions. The i-th question is whether P remains balanced after pai and pbi  swapped. Note that questions ar…

最大的位或 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 18    Accepted Submission(s): 17 Problem Description B君和G君聊天的时候想到了如下的问题.给定自然数l和r ,选取2个整数x,y满足l <= x <= y <= r ,使得x|y最大.其中|表示按位或,即C. C++.…

点击打开链接 2226: Contest Print Server Time Limit: 1 Sec  Memory Limit: 128 MB Submit: 53  Solved: 18 [Submit][Status][Web Board] Description In ACM/ICPC on-site contests ,3 students share 1 computer,so you can print your source code any time. Here you ne…