# sorting integers

Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 3 Exercise 6
Using std_lib_facilities.h by Bjarne Stroustrup.

[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PP
// Chapter 3 Exercise 6

#include "std_lib_facilities.h"

int main()
{
int val1, val2, val3;
int smallest = 0, medium = 0, largest = 0;
cout << "enter tree integer value ";
cin >> val1 >> val2 >> val3;
cout << "you entered three values: " << "val1: " << val1 << ", val2: " << val2 << ", val3: " << val3 << "\n";

if (val1 <= val2 && val1 <= val3)
{
smallest = val1;
if (val2 <= val3)
{
medium = val2;
largest = val3;
}
else
{
medium = val3;
largest = val2;
}
}

if (val2 <= val1 && val2 <= val3)
{
smallest = val2;
if (val1 <= val3)
{
medium = val1;
largest = val3;
}
else
{
medium = val3;
largest = val1;
}
}

if (val3 <= val2 && val3 <= val1)
{
smallest = val3;
if (val1 <= val3)
{
medium = val1;
largest = val2;
}
else
{
medium = val2;
largest = val1;
}
}

cout << smallest << ", " << medium << ", " << largest << "\n";
keep_window_open();
}
[/code]

```Output:
enter tree integer value 1 2 3
you entered three values: val1: 1, val2: 2, val3: 3
1, 2, 3
Please enter a character to exit```