
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Because you can flip a tile, two tiles match if the number on the left or right matches the left or right on the other tile.
You should print all matches. First check a direct match, then try flipping tiles. But don’t flip a tile whose left and right numbers are the same. If there is no match, print "No match".
For example, with the tiles 1 3 and 4 3, print
1 3 3 4
Three of my tests are failing since there are duplicates of the print results. How would I go about to remove the duplicate?


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