c++ functions

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#include<iostream>

using namespace std;

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void square(int value)

{

    int total = pow(value, 2);

    cout << total << endl;

}

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void cube(int value)

{

    int total = pow(value, 3);

    cout << total << endl;

}

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int main()

{

    int value;

    cout << "Enter value: ";

    cin >> value;

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    if (value % 2 == 0)

    {

        square(value);

    }

    else

    {

        cube(value);

    }

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    return 0;

}

#include <iostream>

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using namespace std;

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void function(){

    cout << "I am a function!" << endl;

}

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int main()

{

    function();

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    return 0;

}

// the void function

void function() {

 cout << "Hello World!";

}

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// the main function

int main() {

 function();

 return 0;

}

// C++ Program to demonstrate working of a function

#include <iostream>

using namespace std;

// Following function that takes two parameters 'x' and 'y'

// as input and returns max of two input numbers

int max(int x, int y)

{

    if (x > y)

        return x;

    else

        return y;

}

// main function that doesn't receive any parameter and

// returns integer

int main()

{

    int a = 10, b = 20;

    // Calling above function to find max of 'a' and 'b'

    int m = max(a, b);

    cout << "m is " << m;

    return 0;

}

return_type function_name( parameter list ) {

   body of the function

}

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