题解 | 数字颠倒
数字颠倒
https://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
package main
import (
"fmt"
)
func main() {
var b string
fmt.Scan(&b)
str := []byte(b)
for i,j := 0, len(str) - 1; i < j; i,j = i+1, j-1 {
str[i], str[j] = str[j], str[i]
}
fmt.Println(string(str))
}
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