When i replace 0 (which is after return ) by natural number then the output is coming the same as when the zero(0) is there.Why?

Question

#include <iostream>
using namespace std;

int main()
{
cout << "Hello world!";
return 0;
}
Replacing 0 by 1,2,3...........

Answer 1

Please use the search function to avoid duplicate posts
https://www.sololearn.com/Discuss/1673522/?ref=app

https://www.sololearn.com/discuss/1316935/?ref=app

Answer 2

Ok