How do I return to start (int main) in c++
example:

int main()
std::cout << "Haha, this is a loop";
(what will I type to make it go back to start and repeat itself??)

You need exactly what you said here "std::cout << "Haha, this is a loop";"

You need a loop. Here is an example of for loop.

#include <iostream>
using namespace std;
int main(){
 const int MAXLOOP = 100;
 for(int i = 0; i < MAXLOOP; ++i){ //loop 100 times
  cout << "loop number : " << i << endl;
 }
}
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