A utility function to print solution matrix sol [ N ] [ N ]
void printSolution ( int sol [ N ] [ N ] ) { for ( int x = 0 ; x < N ; x ++ ) { for ( int y = 0 ; y < N ; y ++ ) printf ( " ▁ % 2d ▁ " , sol [ x ] [ y ] ) ; printf ( " STRNEWLINE " ) ; } }