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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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