力扣题-12.5

[力扣刷题攻略] Re：从零开始的力扣刷题生活

力扣题1：551. 学生出勤记录 I

解题思想：进行字符的统计即可

class Solution(object):
    def checkRecord(self, s):
        """
        :type s: str
        :rtype: bool
        """
        flag = True
        count_A = 0
        count_L = 0
        for i in range(len(s)):
            if s[i]=='A':
                count_A +=1
                count_L = 0
            elif s[i]=='L':
                count_L +=1
                if count_L >=3:
                    flag = False
            else:
                count_L = 0
        if count_A>=2:
            flag = False
        return flag
        

class Solution {
public:
    bool checkRecord(string s) {
        bool flag = true;
        int count_A = 0;
        int count_L = 0;

        for (int i = 0; i < s.length(); ++i) {
            if (s[i] == 'A') {
                count_A++;
                count_L = 0;
            } else if (s[i] == 'L') {
                count_L++;
                if (count_L >= 3) {
                    flag = false;
                }
            } else {
                count_L = 0;
            }
        }

        if (count_A >= 2) {
            flag = false;
        }

        return flag;
    }
};