use std::collections::HashMap;
use std::fs::File;
use std::io::prelude::*;

fn main() -> std::io::Result<()> {
    let mut file = File::open("test.txt")?;
    let mut contents = String::new();
    let mut hashmap: HashMap<char, i32> = HashMap::new();
    file.read_to_string(&mut contents)?;
    for c in contents.chars() {
        if let Some(value) = hashmap.get(&c) {
            hashmap.insert(value, hashmap.get(value) + 1);
        }
        //println!("{:?}", contents.chars().nth(i));
    }
    /*
    contents.push('é');
    let mut file2 = File::create("fo.txt")?;
    let test: i64 = 10000000;
    //writeln!(file2, "{}", test)?;
    file2.write_all(&test.to_be_bytes())?;
    */
    Ok(())
}