public/subjects/squareroot/README.md

Square-root

Instructions

Write a function that takes a number and returns the square root of that number.

• If the number is less than one or the number does not have an integer square root, return -1.
• The square root of a number is the number divided by two until the number is less than or equal to one.

Expected function

func SquareRoot(number int) int {
    // Your code here
}

Usage

package main

import "fmt"

func main() {
    fmt.Println(SquareRoot(9))
    fmt.Println(SquareRoot(16))
    fmt.Println(SquareRoot(25))
    fmt.Println(SquareRoot(26))
    fmt.Println(SquareRoot(0))
}

and the output should be:

$ go run . 
3
4
5
-1
-1