remove void?

[soulworld05]

I tried to do this without void, seem to give error. Is it possible to not use void?

Reason is, the int number has no use if I didn't give it anything to do.

Could I try and use this?

std::cout << number;

#include <iostream>

int get_input_from_user()
{
    std::cout << "Please give us one integer: ";
    int x{};
    std::cin >> x;

    return x;
}

int multiply_number(int number_input)
{
    return number_input * 2;
}

void print_input(int y)
{
    std:: cout << "Your number multiply by two is: " << y;
}
int main()
{
    int number{multiply_number(get_input_from_user())};

    print_input(number);

    return 0;
}

[soulworld05]

Wow nevermind, after few attempt I solved it.

#include <iostream>

int get_input_from_user()
{
    std::cout << "Please give us one integer: ";
    int x{};
    std::cin >> x;

    return x;
}

int multiply_number(int number_input)
{
    return number_input * 2;
}

void print_input(int y)
{
    std:: cout << "Your number multiply by two is: " << y;
}
int main()
{
    int number{multiply_number(get_input_from_user())};

    print_input(number);

    return 0;
}

that OR

#include <iostream>

int get_input_from_user()
{
    std::cout << "Please give us one integer: ";
    int x{};
    std::cin >> x;

    return x;
}

int multiply_number(int number_input)
{
    return number_input * 2;
}

int main()
{
    int number{multiply_number(get_input_from_user())};

    std::cout << number;

    return 0;
}