PAT乙级1003

19分，有点没懂题目意思，隔段时间再回来看看。

import java.util.Scanner;

public class Main {    public static void main(String[] args){        Scanner scanner = new Scanner(System.in);        int n = scanner.nextInt();        scanner.nextLine();        for(int i = 0 ; i < n ; ++i){            String str = scanner.nextLine();            char[] ch = str.toCharArray();            int flagp = 0;            int flaga = 0;            int flagt = 0;            int j;            for( j = 0 ; j < ch.length; ++j){                if((ch[j] == ‘P‘ && flagp == 0) || (ch[j] == ‘A‘ && flaga < 3) || (ch[j] == ‘T‘ && flagt == 0 && flagp > 0) || ch[j] == ‘ ‘){                    if(ch[j] == ‘P‘)                        flagp ++;                    if(ch[j] == ‘T‘)                        flagt++;                    if(ch[j] == ‘A‘ && flagp > 0 && flagt == 0){                        flaga ++;                    }                }else{                    System.out.println("NO");                    break;                }            }            if(j == ch.length ) {                if (flaga > 0 && flagp == 1 && flagt == 1)                    System.out.println("YES");                else                    System.out.println("NO");            }        }    }}

原文地址：https://www.cnblogs.com/lin0/p/11925080.html