TLDR; Would like to use -Wall -Wextra -O2 flags without the warnings interrupting CPH testcases.

Recently, I installed VSCode and was too lazy to set up warning flags. But it came back to bite me and I failed to solve a problem due to an avoidable bug if I had the -Wall flag.

I then proceeded to set up the flags in CPH, but I soon noticed an issue. The warnings would stop the testcases from providing an output even if the code was perfectly fine.

Take this following code for example

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

int main() { for (int i = 0; i < 5; i++) cout << i << " "; cout << endl; for (int i = 5; i < 9; i++) cout << i << " "; cout << endl; }```