Challenge #25: Creating Merchant Combos

[RolandSchubert]

My solution

[nini]

My solution:

[nini]

the # of pairs should be 66, not 77

[KeithTroutt]

solution

[RichoBsJ]

Hi! Here my solution :)

[TharunReddy]

[sagarb]

More of a static solution. After looking at the posted solution, realized that the good old Full Outer Join is the trick.

[rfergus]

Took a little different approach. Final answer wasn't an exact match because I chose to exclude matches where one of the values was null. I noticed that there wasn't always a null match for each pair in the official solution so there seems to be some inconsistancy their unless I am missing some reason they should be there.

Spoiler

[tensor]

My solution: 

[FeedMeData]

This was tricky for me but did it!