0_0_31664101_25647\Main.java:1: 错误: 需要class, interface或enum
Scanner scanner = new Scanner(System.in);
^
0_0_31664101_25647\Main.java:2: 错误: 需要class, interface或enum
while (scanner.hasNext()) {
^
0_0_31664101_25647\Main.java:4: 错误: 需要class, interface或enum
char[] chars = s.toCharArray();
^
0_0_31664101_25647\Main.java:6: 错误: 需要class, interface或enum
int front = 0;
^
0_0_31664101_25647\Main.java:7: 错误: 需要class, interface或enum
int end = chars.length - 1;
^
0_0_31664101_25647\Main.java:9: 错误: 需要class, interface或enum
while (true) {
^
0_0_31664101_25647\Main.java:12: 错误: 需要class, interface或enum
break;
^
0_0_31664101_25647\Main.java:13: 错误: 需要class, interface或enum
}
^
0_0_31664101_25647\Main.java:16: 错误: 需要class, interface或enum
break;
^
0_0_31664101_25647\Main.java:17: 错误: 需要class, interface或enum
}
^
0_0_31664101_25647\Main.java:19: 错误: 需要class, interface或enum
end--;
^
0_0_31664101_25647\Main.java:20: 错误: 需要class, interface或enum
}
^
12 个错误
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