Hello CF I write this blog because I encountered a rather weird issue, maybe anyone here has the same issue or even has solved this?

Here's the thing:

This compiles and run, I can see Hello printed in my terminal

#include <bits/stdc++.h>
using namespace std;

int main() {
  vector<int> v;
  cout << "Hello";
  // v.push_back(2);
  return 0;
}

However when I uncomment the push back my code compiles but doesn't run! (I don't see Hello in terminal)

Commands I used: g++ main.cpp -Wall -o main .\main.exe

There's no warning or error message.

I have tried compiling with MSYS64 (my main) and MSVC x64, same results.