#include <stdio.h> int main(int argc, char *argv[]) { int a[100][100]; int n,i,j; scanf("%d",&n); int sum=0,sum1=0; for(i=0;i<n;i++) { for(j=0;j<n;j++) { scanf("%d",&a[i][j]); } } int x=n; for(i=0;i<n;i++ ) { for( j=0;j<=i;j++){ sum+=a[i][j]; } } printf("%d",sum); return 0; } |
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