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 Foundation
while let line = readLine() {
var res = 0
var number = Int(line)!
//! 需要过滤相同元素
var hash = Set<Int>()
while number != 0 {
let temp = number % 10
if hash.insert(temp).inserted {
res = res * 10
res += temp
}
number = number / 10
}
print(res)
}
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