标签：pac namespace ios dia 为什么 names ble pre cstring
http://acm.xidian.edu.cn/problem.php?id=1080
神奇的规律，却不知道为什么，上面那道曼哈顿路径的题还没想出来呢。
#include<iostream> #include<cstring> #include<cstdio> #include<algorithm> using namespace std; int main() { int n; while(~scanf("%d",&n)) { printf("%d\n",n*n*4); } return 0; }
标签：pac namespace ios dia 为什么 names ble pre cstring
原文地址：http://www.cnblogs.com/zhurb/p/5986616.html
