Question

How to write a function that get 5 and return 7 or get 7 and return 5 without conditions in C++

Answer 1

#include <iostream>

int f(int x) {
    return 12 - x;
}
 
int main(void)
{
    std::cout << f(7) << "\n";
     
    std::cout << f(5) << "\n";
}
 
 
 
 
/*
run:
 
5
7
 
*/

 

70+ SQL courses for beginners and professionals

Answer 2

#include <iostream>

int f(int x) {
    return 35 / x;
}
 
int main(void)
{
    std::cout << f(7) << "\n";
     
    std::cout << f(5) << "\n";
}
 
 
 
 
/*
run:
 
5
7
 
*/

 

70+ SQL courses for beginners and professionals

Answer 3

#include <iostream>

int f(int x) {
    return x ^ 2;
}
 
int main(void)
{
    std::cout << f(7) << "\n";
     
    std::cout << f(5) << "\n";
}
 
 
 
 
/*
run:
 
5
7
 
*/

 

70+ SQL courses for beginners and professionals