SRM 673, D2, 250-Pointer (BearSong)

James S. Plank

Tue Aug 30 00:47:32 EDT 2016
This is a map problem. Create a map whose key is the pitch, and whose value is the number of times that you see the pitch. Your first step is to run through the pitches, and create/update the elements in the map.

Your second step is to traverse the map and count the number of entries whose second field equals one.

My Solution.