mirror of https://github.com/01-edu/public.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
487 B
45 lines
487 B
2 years ago
|
## swap
|
||
|
|
|
||
|
|
### Instructions
|
||
|
|
|
||
|
|
- Write a function that takes two **pointers to an `int`** (`*int`) and swaps their contents.
|
||
|
|
|
||
|
|
### Expected function
|
||
|
|
|
||
|
|
```go
|
||
|
|
func Swap(a *int, b *int) {
|
||
|
|
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
### Usage
|
||
|
|
|
||
|
|
Here is a possible program to test your function :
|
||
|
|
|
||
|
|
```go
|
||
|
|
package main
|
||
|
|
|
||
|
|
import "fmt"
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
a := 0
|
||
|
|
b := 1
|
||
|
|
Swap(&a, &b)
|
||
|
|
fmt.Println(a)
|
||
|
|
fmt.Println(b)
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
And its output :
|
||
|
|
|
||
|
|
```console
|
||
|
|
$ go run .
|
||
|
|
1
|
||
|
|
0
|
||
|
|
$
|
||
|
|
```
|
||
|
|
|
||
|
|
### Notions
|
||
|
|
|
||
|
|
- [Pointers](https://golang.org/ref/spec#Pointer_types)
|