Why there is no output?

Question

#include <iostream>
using namespace std;

int main() {
string arr [2] = {"12","st"};
cout << arr[2];

return 0;
}

Answer 1

That's because arr[2] doesn't exist.

Your array has a size for 2 elements.
Since array indexing starts from 0, so you can access first element/index by arr[0] and similary second one like arr[1].

Also note that compiler will give 'Index out of bound' or 'Memory access violation' (not sure which one of them) error.

Answer 2

I forget about it.Thank you veru much!