static void RecursionColumnWise()
{
var obj = new CareerCupQnA();
// [0 0 0 0 0 0 0 1 1 1 1 1]
//[0 0 0 0 1 1 1 1 1 1 1 1]
//[0 0 0 0 0 0 1 1 1 1 1 1]
//[0 0 0 0 0 0 0 0 0 1 1 1]
//[0 0 0 0 0 0 0 1 1 1 1 1]
//[0 0 0 0 1 1 1 1 1 1 1 1]
int[,] array2D = new int[, ] {
{ 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1 },
{ 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 },
};
obj.RecursionColumnWise(array2D, array2D.GetUpperBound(0), array2D.GetUpperBound(1));
}