9. Consider two strings A "4pgr" and B- "paprerp". Let x be the length of the longest common subsequence (not necessarily contiguous) between A and B and let y be the of such umber longest common...

Extracted text: 9. Consider two strings A "4pgr" and B- "paprerp". Let x be the length of the longest common subsequence (not necessarily contiguous) between A and B and let y be the of such umber longest common subsequences between A and B. Then + 10