View Code of Problem 51

#include<stdio.h>
#include <math.h>
#include "string.h"
int main(){
	char a[11][11];
	int b,n,i,j;
scanf("%d",&n);
int res=0;
for(i=0;i<n;i++)
{
	for(j=0;j<n;j++)
	{
		scanf("%d",&b);
		a[i][j]=b;
	
	}
}
for(i=0;i<n;i++)
{
	for(j=0;j<i+1;j++)
	{
		res=res+a[i][j];
	}
}


printf("%d",res);
	return  0;
	
} 

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