Write a programme with C + + language wich print the biggest number in between three numbers, whith INT

Your question is a bit misleading, I'm having trouble understanding what you mean with "in between". I'm assuming you want the biggest number from an input of 3 numbers. You did not specify what should happen if more than one number is the biggest (ie., they're equal).

A very naive implementation might be:

void PrintBiggest (int a, int b, int c)

{

if ((a > = b) && (a > = c)) cout << a;

else if ((b > = a) && (b > = c)) cout << b;

else if ((c > = a) && (c > = b)) cout << c;

}

If you want to use STL (mine is a little rusty), the following could be the start of something more generic:

void PrintBiggest (int a, int b, int c)

{

std::vector myints;

myints. push_back (a);

myints. push_back (b);

myints. push_back (c);

sort (myints. begin (), myints. end ());

cout << myints. back ();

}