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## pointone
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### Instructions
- Write a function that takes a **pointer to an `int`** as argument and gives to this `int` the value of 1.
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### Expected function
```go
func PointOne(n *int) {
}
```
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### Usage
Here is a possible program to test your function :
```go
package main
import (
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"fmt"
"piscine"
)
func main() {
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n := 0
piscine.PointOne(&n)
fmt.Println(n)
}
```
And its output :
```console
$ go run .
1
$
```
### Notions
- [Pointers](https://golang.org/ref/spec#Pointer_types)