如题,我在做 Codeforces 时遇到了神奇问题。
题目链接:https://codeforces.com/problemset/problem/277/E
C++17 TLE 提交记录:https://codeforces.com/contest/277/submission/297170821
C++20 AC 提交记录: https://codeforces.com/contest/277/submission/297170959
大佬们知道为什么吗?