Driver code
public static void Main ( ) { int n = 4 ; int k = 4 ; int [ ] [ ] point = new int [ ] [ ] { new int [ ] { 1 , 5 , 2 , 4 } , new int [ ] { 6 , 2 , 0 , 6 } , new int [ ] { 9 , 5 , 1 , 3 } , new int [ ] { 6 , 7 , 5 , 9 } } ;