解题思路:
利用replace函数直接替换即可,将0替换成一个非0与1的任意字符a,然后再将1替换成指定字符01,再将a替换为1
注意事项:
注意要先替换0,因为初始状态为0,否则不管怎么替换都将是0
参考代码:
import java.util.Scanner;
/**
* @author ShuHong
* @create 2023-03-30-20:37
* @description:
*/
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int n = scanner.nextInt();
String str = "0";
for (int i = 0; i < n; i++) {
str = str.replace("0","a");
str = str.replace("1","01");
str = str.replace("a","1");
}
System.out.println(str);
}
}
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