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