551. Student Attendance Record I

You are given a string representing an attendance record for a student. The record only contains the following three characters:

1. 'A' : Absent.
2. 'L' : Late.
3. 'P' : Present.

A student could be rewarded if his attendance record doesn't contain more than one 'A' (absent) or more than two continuous 'L' (late).

You need to return whether the student could be rewarded according to his attendance record.

Example 1:

Input: "PPALLP"
Output: True

Example 2:

Input: "PPALLL"
Output: False

---

解题思路：出现多于1个A或者多余两个连续的L则为false,否则为true

class Solution {
public:
    bool checkRecord(string s) {
        int count=0;
        if(s.size()<3){
            for(int i=0;i<s.size();i++){
            if(s[i]=='A'){
                count++;
                if(count>1)return false;
            } 
        }
        }
        else{
            for(int i=0;i<s.size();i++){
            if(s[i]=='A'){
                count++;
                if(count>1)return false;
            } 
            if(s[i]=='L'&&s[i+1]=='L'&&s[i+2]=='L') return false;
        }
        }
        
        return true;
    }
};