CSES - Aalto Competitive Programming 2026 - wk2 - Homework

Submission details
Task:	Apartments
Sender:	aalto26bh_011
Submission time:	2026-09-03 10:00:09 +0300
Language:	C++ (C++20)
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	0.12 s	details
#6	ACCEPTED	0.12 s	details
#7	ACCEPTED	0.12 s	details
#8	ACCEPTED	0.12 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	0.24 s	details
#14	WRONG ANSWER	0.24 s	details
#15	WRONG ANSWER	0.24 s	details
#16	ACCEPTED	0.24 s	details
#17	ACCEPTED	0.09 s	details
#18	WRONG ANSWER	0.00 s	details
#19	ACCEPTED	0.00 s	details

Code

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main(){
    int n, m, k;
    cin >> n >> m >> k;
    vector<int> need(n);
    vector<int> app(m);
    for(int i = 0; i < n; i++){
        cin >> need[i];
    }
    for(int i = 0; i < m; i++){
        cin >> app[i];
    }
    sort(need.begin(), need.end());
    sort(app.begin(), app.end());
    int sol = 0;
    int pos = 0;
    for(int i = 0; i < m; i++){
        for(int j = pos; j < n; j++){
            if(app[j] > need[i] + k) break;
            else if(app[j] <= need[i] + k || app[j] >= need[i] - k){
                sol++;
                pos++;
                break;
            }
            pos++;
        }
    }
    cout << sol << endl;
}

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
`7` view save

Feedback: Incorrect character on line 1 col 1: expected "1", got "7"

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
`199689` view save

Feedback: Incorrect character on line 1 col 3: expected "197286", got "199689"

Test 6

Verdict: ACCEPTED

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

correct output
`200000` view save

user output
`200000` view save

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
`8` view save

Feedback: Incorrect character on line 1 col 1: expected "0", got "8"

Test 10

Verdict: WRONG ANSWER

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

correct output
`0` view save

user output
`8` view save

Feedback: Incorrect character on line 1 col 1: expected "0", got "8"

Test 11

Verdict: WRONG ANSWER

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

correct output
`0` view save

user output
`5` view save

Feedback: Incorrect character on line 1 col 1: expected "0", got "5"

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
`199975` view save

Feedback: Incorrect character on line 1 col 1: expected "42", got "199975"

Test 14

Verdict: WRONG ANSWER

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

correct output
`846` view save

user output
`199783` view save

Feedback: Incorrect character on line 1 col 1: expected "846", got "199783"

Test 15

Verdict: WRONG ANSWER

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

correct output
`57149` view save

user output
`199932` view save

Feedback: Incorrect character on line 1 col 1: expected "57149", got "199932"

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: ACCEPTED

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

correct output
`1` view save

user output
`1` view save

Test 18

Verdict: WRONG ANSWER

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

correct output
`2` view save

user output
`0` view save

Feedback: Incorrect character on line 1 col 1: expected "2", got "0"

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_011)