View Code of Problem 51

#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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