题解 | #数字颠倒#
数字颠倒
https://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
use std::io::{self, *}; fn main() { let mut s = String::new(); std::io::stdin().read_line(&mut s).unwrap(); let mut res = String::new(); for c in s.trim().chars().rev() { print!("{}", c); } }