Sanalista

use std::io;

fn main() {
    let mut parilliset : i16 = 0;

    let mut iteraatiot_str = String::new();
    io::stdin().read_line(&mut iteraatiot_str)
    .expect("fail");

    let iteraatiot = iteraatiot_str.parse::<i16>().unwrap();

    for _ in 0 .. iteraatiot {
        let mut syote = String::new();
        io::stdin().read_line(&mut syote)
        .expect("fail");

        if syote.chars().count() % 2 == 0 {
            parilliset+=1;
        }
    }

    print!("{}", parilliset)
}

Test 1

Verdict: RUNTIME ERROR

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }', input/code.rs:10:22
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Test 2

Verdict: RUNTIME ERROR

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }', input/code.rs:10:22
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Test 3

Verdict: RUNTIME ERROR

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }', input/code.rs:10:22
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace