#include<stdio.h> int main(void){ int n,a[11][11],sum=0; scanf("%d",&n); for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ scanf("%d",&a[i][j]); } } 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.