func Fibonacci( n int ) int { // write code here if n==0 || n==1 { return n } a := 0 b := 1 var c int for i:=2;i<=n;i++ { c = a+b a=b b=c } return c }
func Fibonacci( n int ) int { // write code here if n==0 || n==1 { return n } a := 0 b := 1 var c int for i:=2;i<=n;i++ { c = a+b a=b b=c } return c }