解题思路:
注意事项:
参考代码:
import java.util.HashMap;
import java.util.Scanner;
public class Main {
static HashMap<String, Integer> map = new HashMap<String, Integer>();
static int judge(String str) {
if(map.containsKey(str)) return map.get(str);
if(str.indexOf("LOL") != -1) return -1;
if(str.length()<3||str.indexOf("*") == -1) return 0;
int res = -1;
char[] arr = str.toCharArray();
for (int i = 0; i < arr.length; i++) {
if(arr[i] == '*'){
arr[i] = 'L';
res = Math.max(res,-judge(new String(arr)));
if(res == 1) break;
else {
arr[i] = 'O';
res = Math.max(res,-judge(new String(arr)));
if(res == 1) break;
}
arr[i] = '*';
}
}
if(!map.containsKey(str)) map.put(str, res);
return res;
}
public static void main(String[] args) {
Scanner scaner = new Scanner(System.in);
int round = scaner.nextInt();
for (int i = 0; i < round; i++)
System.out.println(judge(scaner.next()));
scaner.close();
}
}
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