Driver code
public static void main ( String [ ] args ) { int matrix [ ] [ ] = { { 2 , 4 , 6 } , { 8 , 10 , 12 } , { 14 , 16 , 18 } , { 20 , 22 , 24 } } ; int n = matrix . length ; int m = matrix [ 0 ] . length ; int k = 2 ; System . out . println ( minOperations ( n , m , k , matrix ) ) ; } }