public/subjects/revivethreenums.en.md

## revive_three_nums

## **WARNING! VERY IMPORTANT!**

For this exercise a function will be tested **with the exam own main**. However the student **still needs** to submit a structured program:

This means that:

- The package needs to be named `package main`.
- The submitted code needs one declared function main(`func main()`) even if empty.
- The function main declared needs to **also pass** the `Restrictions Checker`(illegal functions tester). It is advised for the student to just empty the function main after its own testings are done.
- Every other rules are obviously the same than for a `program`.

### Instructions

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The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.

There are basically three integers: **a**, **b**, **c**. You are given 4 integers: **b+c**, **a+b**, **c+a**, **a+b+c** (not necessarily in this order). Return maximum of a, b, c.

### Expected function

```go
func Revive_three_nums(a, b, c, d int) int {

}
```

### Usage

Here is a possible program to test your function :

```go
package main

import (
	"fmt"
)

func main() {
	fmt.Println(Revive_three_nums(3, 6, 5, 4))
	fmt.Println(Revive_three_nums(40, 40, 40, 60))
	fmt.Println(Revive_three_nums(201, 101, 101, 200))
}
```

And its output :

```console
student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test
3
20
100
student@ubuntu:~/[[ROOT]]/test$
```