#include <stdio.h> #define max 10 int main() { int n, i, j, sum = 0; int data[max][max]; scanf("%d", &n); for(i=0; i<n; ++i ){ for(j=0; j<n; ++j){ scanf("%d", &data[i][j]); } } for( i=0; i<n; ++i){ for(j=0; j<=i; ++j){ sum += data[i][j]; } } printf("%d", sum); return 0; } |
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