Hey I think I'm using my mac's clang llvm compiler to compile my code with the following flags :

g++ -std=c++20 -DDEBUG -DYEET -fsanitize=address -fsanitize=undefined -fno-sanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment $$$filename -o $$${filename%.*}

and when I compiled the following code : 291228049 and ran it against any test case of the problem 1398D - Colored Rectangles, I got the following :

But as you can check out, the submission was accepted on Codeforces, which confuses me. How do I begin to understand what's going on?

Thanks for your help and let me know if you need any more information