Game CSV Sum with Map
Chuchu and Xyz are playing a game. But this time they've invited
their friends!
They've written down their scores in a String like this:
Xyz, 10
Chuchu,5
Sheldon,6
Xyz, 20
Lulu,8
Xyz, 4
The winner of the game is the player with the most
total points. For the game above, the winner is Xyz, since
she scored 34 points to Chuchu's 5, Sheldon's 6, and Lulu's 8. Note
that zero is a valid number of...