Maalaus

use std::io;

fn read_next<'a, I>(iter: &mut I) -> usize
where
    I: Iterator<Item = &'a str>,
{
    iter.next()
        .expect("invalid input")
        .parse::<usize>()
        .expect("invalid integer")
}

fn main() {
    // Input
    let mut nmkq = String::new();
    io::stdin()
        .read_line(&mut nmkq)
        .expect("failed to read line");
    let mut nmk = nmkq.split_ascii_whitespace();
    let n = read_next(&mut nmk);
    let m = read_next(&mut nmk);
    let k = read_next(&mut nmk);
    let q = read_next(&mut nmk);

    let mut grid: Vec<Vec<usize>> = vec![vec![0; m]; n];
    for _ in 0..q {
        let mut oic = String::new();
        io::stdin()
            .read_line(&mut oic)
            .expect("failed to read line");
        let mut oic = oic.split_ascii_whitespace();
        let o = oic.next().expect("too few arguments");
        let i = read_next(&mut oic);
        let c = read_next(&mut oic);
        match o {
            "R" => grid[i] = vec![c;m],
            "C" => {
                for y in 0..n {
                    grid[y][i] = c;
                }
            },
            _ => panic!("illegal operation '{o}'")
        }
    }

    let mut sums: Vec<usize> = vec![0; k];
    for c in 1..=k {
        for r in &grid {
            for e in r {
                if e == &c {
                    sums[c-1] += 1;
                }
            }
        }
    }
    for sum in sums {
        print!("{sum} ");
    }
    println!();
}

Test 1 (public)

Group: 1, 3, 4

Verdict: ACCEPTED

Test 2 (public)

Group: 3, 4

Verdict: RUNTIME ERROR

Test 3

Group: 1, 3, 4

Verdict: RUNTIME ERROR

thread 'main' panicked at input/code.rs:36:24:
index out of bounds: the len is 10 but the index is 10
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Test 4

Group: 2, 4

Verdict: RUNTIME ERROR

Test 5

Group: 2, 4

Verdict: RUNTIME ERROR

Test 6

Group: 3, 4

Verdict: RUNTIME ERROR

Test 7

Group: 3, 4

Verdict: RUNTIME ERROR

Test 8

Group: 4

Verdict: RUNTIME ERROR

Test 9

Group: 4

Verdict: RUNTIME ERROR

Test 10

Group: 1, 3, 4

Verdict: RUNTIME ERROR

thread 'main' panicked at input/code.rs:36:24:
index out of bounds: the len is 1 but the index is 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Test 11

Group: 1, 3, 4

Verdict: RUNTIME ERROR

thread 'main' panicked at input/code.rs:39:28:
index out of bounds: the len is 1 but the index is 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Test 12

Group: 2, 4

Verdict: RUNTIME ERROR

Test 13

Group: 2, 4

Verdict: RUNTIME ERROR

Test 14

Group: 4

Verdict: RUNTIME ERROR

Test 15

Group: 4

Verdict: RUNTIME ERROR

Test 16

Group: 4

Verdict: RUNTIME ERROR

Test 17

Group: 4

Verdict: RUNTIME ERROR