2012 JinHuaSite Regional Contest Problem I

 

简单的平方和即可，数据小，不会超过int。

难度系数：☆☆☆☆☆

#include<cstdio>#include<cstring>#include<cstdlib>#include<string>#include<iostream>#include<algorithm>#include<vector>#include<queue>#include<stack>#include<cmath>#include<map>#include<time.h>using namespace std;const int M=1000030;const int N=1001;const int inf=1<<29;//const double inf=1000000000000000000LL;const double eps=1e-12;const double pi=acos(-1.0);int main(){int n;while(scanf("%d",&n),n){int ans=0,a;while(n--){scanf("%d",&a);ans+=a*a;}printf("%d\n",ans);}return 0;}