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6 years ago
## sqrt
### Instructions
Write a function that returns the square root of the `int` passed as parameter if that square root is a whole number. Otherwise it returns `0`.
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### Expected function
```go
func Sqrt(int nb) int {
}
```
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### Usage
Here is a possible [program](TODO-LINK) to test your function :
```go
package main
import (
        "fmt"
        piscine ".."
)
func main() {
arg1 := 4
arg2 := 3
fmt.Println(piscine.Sqrt(arg1))
fmt.Println(piscine.Sqrt(arg2))
}
```
And its output :
```console
student@ubuntu:~/piscine-go/test$ go build
student@ubuntu:~/piscine-go/test$ ./test
2
0
student@ubuntu:~/piscine-go/test$
```