Problem Description
C PROGRAM TO CALCULATE SUM OF UPPER TRIANGULAR ELEMENTSCODING ARENA::
#include <stdio.h>
int main()
{
int a[10][10],n,m,i,j,sum=0;
scanf ("%d",&n);
scanf ("%d",&m);
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
scanf ("%d",&a[i][j]);
}
}
if(n==m)
{
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
if(i<j)
{
sum=sum+a[i][j];
}
}
}
printf ("%d",sum);
}
else
printf ("entered row and columns is not square matrix");
return 0;
}
Test Case 1
Input (stdin)3 3 1 2 3 2 1 1 1 2 1
Expected Output6
Test Case 2
Input (stdin)3 4 1 2 3 4 5 6 7 8 9 10 11 12
Expected Outputentered row and columns is not square matrix
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