Why is my code not generating random numbers?

Question

https://code.sololearn.com/c7IFyEGmKF2i/?ref=app

When i simply use the rand( ) and srand( ) functions in main( ) function, the program runs just fine. But, when i create a new function by the name of Switch ( ) that has the same functionality, the program doesnt generate random numbers.
What is wrong here?

Thanks!!

Answer 1

Because you re-seed the RNG with srand() each time you call Switch(). Remove line 22. Seeding the RNG once in your main is enough.

Answer 2

Thanks alot Hatsy Rei . Could you also explain how to create a Display( ) function that behaves like a printf. I tried creating the function with if else statements. But the problem i am facing is in returing the output as it is in the form of a string, "RED" or "GREEN" and you cannot return strings in a function.