alt Hacker NewsIt doesn't matter if the answer is wrong. You run the test program and then replace the code by the answer. This basically weeds out the UB.
It doesn't matter if the answer is wrong. You run the test program and then replace the code by the answer. This basically weeds out the UB.
But since it is a UB, there's no guarantee that your test program produces the same result as the same code running on production, even if you have the same compiler.