#include <iostream>

using namespace std;

// function declaration

int max(int num1, int num2);

int main()

{

// local variable declaration:

int a = 100;

int b = 200;

int ret;

// calling a function to get max value.

ret = max(a, b);

cout << "Max value is : " << ret << endl;

return 0;

}

// function returning the max between two numbers

int max(int num1, int num2)

{

// local variable declaration

int result;

if(num1 > num2)

result = num1;

else

result = num2;

return result;

}