#include<iostream> #include<cstdio> using namespace std; int main(){ int a[10][10]; int n; scanf("%d",&n); for(int i=0;i<n;++i){ for(int j=0;j<n;++j){ scanf("%d",&a[i][j]); } } int sum=0; for(int i=0;i<n;++i){ for(int j=0;j<=i;++j){ sum+=a[i][j]; } } printf("%d",sum); } |
Double click to view unformatted code.