Driver Code
int main ( ) { int mat [ ] [ N ] = { { 7 , 0 , 3 , 1 , 8 , 1 , 3 } , { 0 , 4 , 0 , 1 , 0 , 4 , 0 } , { 3 , 1 , 8 , 3 , 1 , 0 , 7 } } ; int minChanges = countChanges ( mat , 3 , 7 ) ; cout << minChanges ; return 0 ; }