#include<iostream> #include<mem.h> using namespace std; ],q[]; int main() { int n,x,y; memset(q,,sizeof(q)); cin>>n; while(n) { cin>>x>>y; p[x]=y; q[x]++; q[y]--; n--;//p[x]表示在x之后两位的数是什么 //q[x]表示x这个数究竟有多少个 } ; while(true) { )…

题目: 题意:给你n个数值,要求排列这个序列使得第k个数值的前K-1个数的和>=第k个数值的个数尽可能多: #include <iostream> #include <cstdio> #include <cstring> #include <cstdlib> #include <cmath> #include <vector> #include <queue> #include <stack> #incl…

B. Archer Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/312/problem/B Description SmallR is an archer. SmallR is taking a match of archer with Zanoes. They try to shoot in the target in turns, and SmallR shoots first. The…

A. Opponents 题目连接: http://www.codeforces.com/contest/688/problem/A Description Arya has n opponents in the school. Each day he will fight with all opponents who are present this day. His opponents have some fighting plan that guarantees they will win…

后天考试,今天做题,我真佩服自己... 这次又只A俩水题... orz各路神犇... 话说这次模拟题挺多... 半个多小时把前面俩水题做完,然后卡C,和往常一样,题目看懂做不出来... A: 算是模拟吧,反正看懂题目后很可耻的生硬水果,没被hack我觉得非常开心... 由于要求两个人至少一个没跳过,画图后发现很偷懒的方法. 虽然跟样例不同,但过了... #include <cstdio> int main() { int n, m; scanf("%d%d", &n…

对于这道水题本人觉得应该应用贪心算法来解这道题: 下面就贴出本人的代码吧: #include<cstdio> #include<iostream> using namespace std; ],b[]; int main(void) { int n; ; ,sum2 = ; ;i<=;++i){ scanf("%d",&a[i]); sum1 += a[i]; } ;i<=;++i){ scanf("%d",&b[…

B. Queue time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output During the lunch break all n Berland State University students lined up in the food court. However, it turned out that the food cou…

这道题不错,思维上不难想到规律,但是如何写出优雅的代码比较考功力. 首先第一个人的序号可以确定,那么接下来所有奇数位的序号就可以一个连一个的确定了.然后a[i].first==0时的a[i].secod就是第二个人的序号,然后偶数位的序号也可以一个连一个的确定了. 用一个next数组,其下标就是a[i].first,其值就是a[i].second,这样巧妙地使用数组下标就解决了“串链子”这个难点,我之前想的每次用二分来找真是弱爆了.. 而在找第一个人的序号时也是妙用flag数组下标. #incl…

B. Chips Time Limit: 20 Sec  Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/333/problem/B Description Gerald plays the following game. He has a checkered field of size n × n cells, where m various cells are banned. Before the game, he has to…

B. Chocolate 题目连接: http://www.codeforces.com/contest/617/problem/D Descriptionww.co Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the bar of chocolate into multiple pieces…