Hi,

I Have similar requirement. If anyone solve this, pls let me know. Explanation of the problem.

Consider i have two columns with combinations of numbers. I want to pick the genuine combinations of numbers which doesnt involve in other valid conbinations. For ex.,

Num1 Num2

6 2

2 1

2 3

4 6

3 1

8 9

3 9

6 8

My result should be

6 2

3 1

8 9

Can this be done without using loops...