CSES - Aalto Competitive Programming 2026 - wk2 - Homework

Submission details
Task:	Apartments
Sender:	aalto26bh_042
Submission time:	2026-09-05 18:15:56 +0300
Language:	Rust (2021)
Status:	READY
Result:	WRONG ANSWER

Test results
test	verdict	time
#1	WRONG ANSWER	0.00 s	details
#2	WRONG ANSWER	0.00 s	details
#3	ACCEPTED	0.00 s	details
#4	ACCEPTED	0.00 s	details
#5	WRONG ANSWER	0.02 s	details
#6	WRONG ANSWER	0.02 s	details
#7	ACCEPTED	0.02 s	details
#8	ACCEPTED	0.02 s	details
#9	WRONG ANSWER	0.00 s	details
#10	WRONG ANSWER	0.00 s	details
#11	WRONG ANSWER	0.00 s	details
#12	ACCEPTED	0.00 s	details
#13	WRONG ANSWER	0.05 s	details
#14	WRONG ANSWER	0.05 s	details
#15	WRONG ANSWER	0.05 s	details
#16	ACCEPTED	0.05 s	details
#17	WRONG ANSWER	0.02 s	details
#18	ACCEPTED	0.00 s	details
#19	ACCEPTED	0.00 s	details

Code

#![allow(unused)]

use std::io;

fn take_tuple() -> (usize, usize, usize) {
    let mut input = String::new();
    io::stdin().read_line(&mut input).unwrap();
    let mut it = input
        .trim()
        .split_whitespace()
        .map(|x| x.parse::<usize>().unwrap());
    (it.next().unwrap(), it.next().unwrap(), it.next().unwrap())
}

fn take_vector() -> Vec<usize> {
    let mut input = String::new();
    io::stdin().read_line(&mut input).unwrap();
    let arr: Vec<usize> = input
        .trim()
        .split_whitespace()
        .map(|x| x.parse::<usize>().unwrap())
        .collect();
    return arr;
}

fn main() {
    let (num_applicants, num_apartments, allowed_diff): (usize, usize, usize) = take_tuple();
    let mut applicants: Vec<usize> = take_vector();
    applicants.sort_unstable();
    let mut apartments: Vec<usize> = take_vector();
    apartments.sort_unstable();

    let mut count: usize = 0;
    let mut processed = 0;
    let mut i = 0;

    for k in processed..num_apartments {
        let selected_apartment = apartments[k];
        if applicants[i] <= selected_apartment - allowed_diff
            || applicants[i] >= selected_apartment + allowed_diff
        {
            count += 1;
            processed = k;
            i += 1;
        }
    }

    println!("{}", i);
}

Test details

Test 1

Verdict: WRONG ANSWER

input
`10 10 0 37 62 56 69 34 46 10 86 16 49 50 95 47 43 9 62 83 71 71 7` view save

correct output
`1` view save

user output
`10` view save

Feedback: Incorrect character on line 1 col 2: expected "1", got "10"

Test 2

Verdict: WRONG ANSWER

input
`10 10 10 90 41 20 39 49 21 35 31 74 86 14 24 24 7 82 85 82 4 60 95` view save

correct output
`6` view save

user output
`8` view save

Feedback: Incorrect character on line 1 col 1: expected "6", got "8"

Test 3

Verdict: ACCEPTED

input
`10 10 1000 59 5 65 15 42 81 58 96 50 1 18 59 71 65 97 83 80 68 92 67` view save

correct output
`10` view save

user output
`10` view save

Test 4

Verdict: ACCEPTED

input
`10 10 1000000000 25 80 59 43 67 21 77 5 8 99 66 41 62 24 88 55 1 53 50 60` view save

correct output
`10` view save

user output
`10` view save

Test 5

Verdict: WRONG ANSWER

input
`200000 200000 0 34 48 12 99 89 71 20 7 9 38 58...` view save

correct output
`197286` view save

user output
`200000` view save

Feedback: Incorrect character on line 1 col 1: expected "197286", got "200000"

Test 6

Verdict: WRONG ANSWER

input
`200000 200000 10 89 26 46 74 91 19 47 18 83 85 ...` view save

correct output
`200000` view save

user output
`180102` view save

Feedback: Incorrect character on line 1 col 1: expected "200000", got "180102"

Test 7

Verdict: ACCEPTED

input
`200000 200000 1000 71 84 11 90 70 59 60 11 52 65 ...` view save

correct output
`200000` view save

user output
`200000` view save

Test 8

Verdict: ACCEPTED

input
`200000 200000 1000000000 21 94 92 4 12 5 38 47 59 92 2 ...` view save

correct output
`200000` view save

user output
`200000` view save

Test 9

Verdict: WRONG ANSWER

input
`10 10 0 727245017 647121519 549745115 ...` view save

correct output
`0` view save

user output
`10` view save

Feedback: Incorrect character on line 1 col 1: expected "0", got "10"

Test 10

Verdict: WRONG ANSWER

input
`10 10 10 30734435 218114477 257355293 4...` view save

correct output
`0` view save

user output
`10` view save

Feedback: Incorrect character on line 1 col 1: expected "0", got "10"

Test 11

Verdict: WRONG ANSWER

input
`10 10 1000 7899629 162004163 327616450 51...` view save

correct output
`0` view save

user output
`10` view save

Feedback: Incorrect character on line 1 col 1: expected "0", got "10"

Test 12

Verdict: ACCEPTED

input
`10 10 1000000000 725746771 537157640 742868604 ...` view save

correct output
`10` view save

user output
`10` view save

Test 13

Verdict: WRONG ANSWER

input
`200000 200000 0 375495587 322263536 985991668 ...` view save

correct output
`42` view save

user output
`200000` view save

Feedback: Incorrect character on line 1 col 1: expected "42", got "200000"

Test 14

Verdict: WRONG ANSWER

input
`200000 200000 10 906603621 968136956 666786366 ...` view save

correct output
`846` view save

user output
`199996` view save

Feedback: Incorrect character on line 1 col 1: expected "846", got "199996"

Test 15

Verdict: WRONG ANSWER

input
`200000 200000 1000 215460174 880023362 242442952 ...` view save

correct output
`57149` view save

user output
`199979` view save

Feedback: Incorrect character on line 1 col 1: expected "57149", got "199979"

Test 16

Verdict: ACCEPTED

input
`200000 200000 1000000000 50349580 773460492 440699400 8...` view save

correct output
`200000` view save

user output
`200000` view save

Test 17

Verdict: WRONG ANSWER

input
`199999 1 1 199996 199997 149999 117797 19...` view save

correct output
`1` view save

user output
`0` view save

Feedback: Incorrect character on line 1 col 1: expected "1", got "0"

Test 18

Verdict: ACCEPTED

input
`5 2 2 2 2 2 40 50 40 50` view save

correct output
`2` view save

user output
`2` view save

Test 19

Verdict: ACCEPTED

input
`4 3 5 60 45 80 60 30 60 75` view save

correct output
`2` view save

user output
`2` view save

Aalto Competitive Programming 2026 - wk2 - Homework

Apartments

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Tasks

Submissions (aalto26bh_042)