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40 lines
699 B
40 lines
699 B
2 years ago
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## Square-root
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### Instructions
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Write a function that takes a number and returns the square root of that number.
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- If the number is less than one or the number does not have an integer square root, return `-1`.
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- The square root of a number is the number divided by two until the number is less than or equal to one.
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### Expected function
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```go
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func SquareRoot(number int) int {
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// Your code here
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}
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```
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### Usage
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```go
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package main
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import "fmt"
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func main() {
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fmt.Println(SquareRoot(9))
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fmt.Println(SquareRoot(16))
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fmt.Println(SquareRoot(25))
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fmt.Println(SquareRoot(26))
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fmt.Println(SquareRoot(0))
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}
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```
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and the output should be:
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```console
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$ go run .
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3
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4
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5
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-1
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-1
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```
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