题目：

题解：

class Solution {
public:bool checkRecord(string s) {int absents = 0, lates = 0;for (auto &ch : s) {if (ch == 'A') {absents++;if (absents >= 2) {return false;}}if (ch == 'L') {lates++;if (lates >= 3) {return false;}} else {lates = 0;}}return true;}
};