题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 将读入的字符看做字符串
String inte = in.next();
Set<Character> set = new LinkedHashSet<>();
String str = "";
//倒序读取字符串字符并存到Set中
for (int i = inte.length() - 1; i >= 0; i--) {
set.add(inte.charAt(i));
}
//使用迭代器获取set中的字符并拼接成字符串
Iterator<Character> iterator = set.iterator();
while (iterator.hasNext()) {
str += iterator.next();
}
//将字符串转为Int并输出
System.out.println(Integer.parseInt(str));
}
}
