From ff662e72997f80c940ddb6f08b032a05f8f4f285 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Thu, 25 Aug 2016 04:01:30 +0200 Subject: difference-of-squares --- go/difference-of-squares/difference_of_squares.go | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 go/difference-of-squares/difference_of_squares.go (limited to 'go/difference-of-squares/difference_of_squares.go') diff --git a/go/difference-of-squares/difference_of_squares.go b/go/difference-of-squares/difference_of_squares.go new file mode 100644 index 0000000..3d392cd --- /dev/null +++ b/go/difference-of-squares/difference_of_squares.go @@ -0,0 +1,21 @@ +package diffsquares + +func SquareOfSums(n int) int { + var sum int + for i := 1; i <= n; i++ { + sum += i + } + return sum * sum +} + +func SumOfSquares(n int) int { + var sum int + for i := 1; i <= n; i++ { + sum += i * i + } + return sum +} + +func Difference(n int) int { + return SquareOfSums(n) - SumOfSquares(n) +} -- cgit v1.2.3