CSES - Datatähti 2021 loppu - Results
Submission details
Task:Kolmijako
Sender:antti_p
Submission time:2021-01-23 19:21:39 +0200
Language:Rust
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED22
#2ACCEPTED78
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2details
#2ACCEPTED0.01 s1, 2details
#3ACCEPTED0.01 s1, 2details
#4ACCEPTED0.01 s1, 2details
#5ACCEPTED0.01 s1, 2details
#6ACCEPTED0.01 s1, 2details
#7ACCEPTED0.01 s1, 2details
#8ACCEPTED0.01 s1, 2details
#9ACCEPTED0.01 s2details
#10ACCEPTED0.01 s2details
#11ACCEPTED0.01 s2details
#12ACCEPTED0.01 s2details
#13ACCEPTED0.01 s2details
#14ACCEPTED0.01 s2details
#15ACCEPTED0.01 s2details

Code

use std::io::{self, BufRead};

// Tarvitaan 000 -> 012
// Ja 012 -> 000

// t == true : 012
// t == false : 000
fn get_arr(t: bool, cnt: usize) -> Vec<usize> {
    match (cnt, t) {
        (5, true) => return vec![1, 3, 1, 3, 2],
        (5, false) => return vec![1, 2, 2, 1, 3],
        (6, true) => return vec![2, 2, 3, 2, 3, 1],
        (6, false) => return vec![3, 2, 1, 1, 2, 3],
        _ => {}
    }
    if cnt < 5 {
        panic!()
    }
    if t {
        let mut arr = get_arr(false, cnt - 3);
        arr.push(1);
        arr.push(2);
        arr.push(3);
        return arr
    } else {
        let mut arr = get_arr(true, cnt - 3);
        arr.push(3);
        arr.push(2);
        arr.push(1);
        return arr
    }
}

fn main() {
    let stdin = io::stdin();
    let mut lines = stdin.lock().lines();
    let n = lines.next().unwrap().unwrap().parse::<usize>().unwrap();
    if n % 3 == 1 {
        println!("IMPOSSIBLE");
        return;
    }
    match n {
        0..=2 => panic!(),
        3 => println!("1 2 3"),
        _ => {
            let res = get_arr(true, n);
            for d in res {
                print!("{} ", d);
            }
            println!();
        }
    }
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
3

correct output
1 2 3 

user output
1 2 3

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
4

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
5

correct output
1 3 1 3 2 

user output
1 3 1 3 2 

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
6

correct output
1 3 2 2 1 3 

user output
2 2 3 2 3 1 

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
7

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
8

correct output
2 3 1 2 3 3 2 1 

user output
1 2 2 1 3 1 2 3 

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
9

correct output
1 2 3 1 2 3 3 2 1 

user output
3 2 1 1 2 3 1 2 3 

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
10

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 9

Group: 2

Verdict: ACCEPTED

input
42

correct output
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...

user output
2 2 3 2 3 1 3 2 1 1 2 3 3 2 1 ...

Test 10

Group: 2

Verdict: ACCEPTED

input
95

correct output
1 3 1 3 2 1 2 3 3 2 1 1 2 3 3 ...

user output
1 3 1 3 2 3 2 1 1 2 3 3 2 1 1 ...

Test 11

Group: 2

Verdict: ACCEPTED

input
96

correct output
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...

user output
2 2 3 2 3 1 3 2 1 1 2 3 3 2 1 ...

Test 12

Group: 2

Verdict: ACCEPTED

input
97

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 13

Group: 2

Verdict: ACCEPTED

input
98

correct output
2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ...

user output
1 2 2 1 3 1 2 3 3 2 1 1 2 3 3 ...

Test 14

Group: 2

Verdict: ACCEPTED

input
99

correct output
1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ...

user output
3 2 1 1 2 3 1 2 3 3 2 1 1 2 3 ...

Test 15

Group: 2

Verdict: ACCEPTED

input
100

correct output
IMPOSSIBLE

user output
IMPOSSIBLE