Hello! I've encountered an issue while solving problems on Codeforces. Specifically, when dealing with wrong submission for lengthy test cases (e.g., 1000 lines), as filtering the incorrect ones among those 1000 lines becomes quite challenging. Has anyone else experienced this difficulty?
Looking forward to your insights!
If you are referring to the testcase after submission, good practice is to find the reason of error by yourself, without looking in the testcase.