题解 | #数字颠倒#
数字颠倒
https://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
package main import ( "bufio" "fmt" "os" ) func main() { in := bufio.NewScanner(os.Stdin) in.Scan() b := in.Bytes() ret := make([]byte, len(b)) for i := len(b) - 1; i >= 0; i-- { ret[len(b)-1-i] = b[i] } fmt.Println(string(ret)) }