题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
import java.util.Scanner
fun main(args: Array<String>) {
val read = Scanner(System.`in`)
val res = read.nextLine()
val rev = res.reversed().toInt().toString()
val set = HashSet<Char>()
rev.forEach {
if(set.add(it)) {
print(it)
}
}
}
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