C++ program to check matrix is diagonal or not

Here is a C++ program to check matrix is diagonal or not


 SOURCE CODE OUTPUT

#include<iostream>
using namespace std;
int main()
{
    int a[10][10],row,col;
    cout<<"Enter row and column of matrix (max 10*10): ";
    cin>>row>>col;
    cout<<"Enter matrix a1 : "<<endl;
    for(int i=0;i<row;i++)
        for(int j=0;j<col;j++)
           cin>>a[i][j];
    for(int i=0;i<row;i++)
        for(int j=0;j<col;j++)
            if(i!=j)
            {
               if(a[i][j]!=0)
               {
                   cout<<"Matrix is not diagonal";
                   return 0;
               }
            }
    cout<<"Matrix is diagonal ";
    return 0;
}

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