Problem I. TV ShowTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=88926#problem/I Description Charlie is going to take part in one famous TV Show. The show is a single player game. Initially the play…
There is No Alternative 题目连接: http://codeforces.com/gym/100803/attachments Description ICPC (Isles of Coral Park City) consist of several beautiful islands. The citizens requested construction of bridges between islands to resolve inconveniences of u…
Problem C. Painting CottagesTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100342/attachments Description The new cottage settlement is organized near the capital of Flatland. The construction company that is building the sett…
I. Sale in GameStore Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100513/problem/I Description A well-known Berland online games store has announced a great sale! Buy any game today, and you can download more games for free!…
G - Good elementsTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87954#problem/G Description You are given a sequence A consisting of N integers. We will call the i-th element good if it equals the s…
Problem D: Queens, Knights and PawnsTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=88443#problem/D Description You all are familiar with the famous 8-queens problem which asks you to place 8 queens…
A. ArielTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100685/problem/A Description King Triton really likes watching sport competitions on TV. But much more Triton likes watching live competitions. So Triton decides to set up…
E. Palindrome QueryTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100570/problem/E Description De Prezer loves palindrome strings. A string s1s2...sn is palindrome if and only if it is equal to its reverse. De Prezer also love…
C. Woodcutters Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/545/problem/D Description Little girl Susie went shopping with her mom and she wondered how to improve service quality. There are n people in the queue. For ea…
A. ACM ICPC time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output In a small but very proud high school it was decided to win ACM ICPC. This goal requires to compose as many teams of three as po…
bzoj2435,懒得复制,戳我戳我 Solution: 模拟即可(有点傻逼啊 Code: //It is coded by Ning_Mew on 5.13 #include<bits/stdc++.h> #define LL long long using namespace std; const int maxn=1e6+7; int n; LL ans=0; int siz[maxn]; int head[maxn],cnt=0; struct Edge{ int nxt,to,dis…
2017 JUST Programming Contest 2.0 题目链接:Codeforces gym 101343 J.Husam and the Broken Present 2 J. Husam and the Broken Present 2 time limit per test:1.0 s memory limit per test:256 MB input:standard input output:standard output After you helped Husam…
D 考虑每个点被删除时其他点对它的贡献,然后发现要求出距离为1~k的点对有多少个. 树分治+FFT.分治时把所有点放一起做一遍FFT,然后减去把每棵子树单独做FFT求出来的值. 复杂度$nlog^2n$ #include<bits/stdc++.h> #define N 270000 #define pi acos(-1) #define ll long long #define inf 0x3f3f3f3f using namespace std; const int p = 10000…
LINK 经典傻逼套路 就是把所有边双缩点之后叶子节点的个数 //Author: dream_maker #include<bits/stdc++.h> using namespace std; //---------------------------------------------- //typename typedef long long ll; //convenient for #define fu(a, b, c) for (int a = b; a <= c; ++a)…