这道题巨坑啊,样例中以-1结束输入的,所以我就天真的以为测试数据也是以-1结束输入的 其实人家原文中说: Input is terminated by a line containing a negative integer. 是以负数结束输入,囧rz! 我这种英语渣渣,怎么可能注意到这种错误 我还以为是算法的问题,就写了两份代码 //#define LOCAL #include <cstdio> ]; int main(void) { #ifdef LOCAL freopen("1…
选课时间(题目已修改,注意读题) Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2254 Accepted Submission(s): 1791 Problem Description 又到了选课的时间了,xhd看着选课表发呆,为了想让下一学期好过点,他想知道学n个学分共有多少组合.你来帮帮他吧.(xhd认为一样学分的课没区别)…
Description On the evening of 3 August 1492, Christopher Columbus departed from Palos de la Frontera with a few ships, starting a serious of voyages of finding a new route to India. As you know, just in those voyages, Columbus discovered the America…
搞不懂为什么DFS的写法崩了,然后乱暴力,因为题意不是很懂... 主要还是读题吧(很烦 #include <bits/stdc++.h> using namespace std; typedef long long LL; typedef unsigned long long ULL; typedef pair<int,int>PII; const double eps=1e-5; const double pi=acos(-1.0); //const int mod=1e9+7;…