Go Exercises: Fibonacci

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Exercise: Fibonacci closure

package main import "fmt" var prev, curr int // fibonacci is a function that returns // a function that returns an int. func fibonacci() func() int { inc := 1 return func() int { prev = curr curr = inc inc = prev+curr return prev } } func main() { f := fibonacci() for i := 0; i < 10; i++ { fmt.Println(f()) } }