Practice Go. Coins @ Alex Pliutau's Blog
Coins
Let Piles(n int) represent the number of different ways in which n coins can be separated into piles. For example, five coins can be separated into piles in exactly seven different ways, so Piles(5)=7.
OOOOO
OOOO O
OOO OO
OOO O O
OO OO O
OO O O O
O O O O O
Input
0 < n <= 1000000
Run tests with benchmarks
go test -bench .
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