How to make the program return to the beginning?

Question

Programming

There is a program in C that needs to return to the beginning.

Answer 1

write code in main inside an infinite loop

while(1) {
  // весь код здесь
}

Answer 2

Use a while loop, or at worst a goto.

Answer 3

1. Define entry and exit conditions.
   
2. Rephrase the task.
   
3. Use recursion or loops.
   
4. Refuse to use tags.