解题思路:
注意事项:
参考代码:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String str = sc.next();
char[]cs=str.toCharArray();
System.out.println(cs.length);
for(char x:cs){
System.out.print(x+" ");
}
System.out.println();
for(int i=cs.length-1;i>=0;i--){
System.out.print(cs[i]);
}
}}
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