inelegant-rust.rs

use std::io;
use std::io::prelude::*;

fn main() {
    let mut grow: Vec<i64> = vec![0,0,0,0,0,0,0,0,0,0];

    let stdin = io::stdin();
    // let writer = io::stdout();

    for line in stdin.lock().lines() {
        match line {
            Ok(line) => {
                let item = line.split(",").nth(2);
                match item {
                    Some(action_type) => {
                        let i: Option<i32> = action_type.trim().parse::<i32>().ok();
                        match i {
                            Some(i) => {
                                let index = i as usize;
                                let val = grow.get_mut(index-1);
                                match val {
                                    Some(inc) => *inc += 1,
                                    None => panic!("More than expected")
                                }
                            },
                            None => panic!("Sad Times")
                        }

                    }
                    None => panic!("Oh dear ")
                }
                // print!("{}", line.split(",").collect()[2]),
            }
            Err(err) => panic!("I/O error {}", err),
        }
    }

    print!("{:?}", grow);
}