use std::io::{read_to_string, stdin}; fn conv(s: &str) -> Vec { let mut v = vec![0; 10]; for ch in s.chars() { v[(ch as usize - '0' as usize) as usize] += 1; } v } fn main() { let temp = read_to_string(stdin()).unwrap(); let mut iter = temp.split_ascii_whitespace(); (0..iter.next().unwrap().parse::().unwrap()).for_each(|_| { let s = iter.next().unwrap().trim(); let cnts = conv(s); }) }