传送门 The Experience of Love Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 221    Accepted Submission(s): 91 Problem Description A girl named Gorwin and a boy named Vivin is a couple. They arriv…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3038 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description TT and FF are ... friends. Uh... very very good friends -________-b FF is a bad boy, he is always…
Dragon Balls Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7926    Accepted Submission(s): 2937 Problem Description Five hundred years later, the number of dragon balls will increase unexpecte…
传送门 Description TT and FF are ... friends. Uh... very very good friends -________-b FF is a bad boy, he is always wooing TT to play the following game with him. This is a very humdrum game. To begin with, TT should write down a sequence of integers-_…
n个结点,m条边,权值是 从u到v所花的时间 ,每次询问会给一个时间,权值比 询问值小的边就可以走 从u到v 和从v到u算不同的两次 输出有多少种不同的走法(大概是这个意思吧)先把边的权值 从小到大排序 询问值也按从小到大排序num记录集合里元素的个数每合并两个集合 ans增加 2*num[u]*num[v] Sample Input15 5 3 //n w q2 3 63341 5 157243 5 57054 3 123821 3 2172660001000013000 Sample Out…
C. Destroying Array 题目连接: http://codeforces.com/contest/722/problem/C Description You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the array one by one. Thus, you are given the permuta…
How Many Answers Are Wrong Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 14546    Accepted Submission(s): 5125 Problem Description TT and FF are ... friends. Uh... very very good friends -____…
题意:n个数,m次询问,每次问区间a到b之间的和为s,问有几次冲突 思路:带权并查集的应用.[a, b]和为s,所以a-1与b就能够确定一次关系.通过计算与根的距离能够推断出询问的正确性 #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> using namespace std; const int MAXN = 200010; int f[MAXN],a…
带权并查集,设f[x]为x的父亲,s[x]为sum[x]-sum[fx],路径压缩的时候记得改s #include<iostream> #include<cstdio> using namespace std; const int N=200005; int n,m,s[N],f[N],ans; int read() { int r=0,f=1; char p=getchar(); while(p>'9'||p<'0') { if(p=='-') f=-1; p=get…
The Experience of Love Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) [Problem Description] A girl named Gorwin and a boy named Vivin is a couple. They arrived at a country named LOVE. The country consisting of N…