CSES - Datatähti 2018 loppu - Results
Submission details
Task:Tanssiaiset
Sender:Yytsi
Submission time:2018-01-18 13:25:57 +0200
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1details
#20.04 s1details
#30.05 s1details
#40.05 s1details
#50.04 s1details
#60.05 s2details
#70.06 s2details
#80.07 s2details
#90.05 s2details
#100.05 s2details

Code

#include <iostream>
#include <utility>

using namespace std;

#define N 100001
int taken[N];
pair<int, int> stud[N];

int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n; cin >> n; cin.ignore();
	int p = (n / 2) + 1;
	pair<int,int> f = {0,0},f2={0,0};
	
	for (int i = 1; i <= p; i++) {
		int a, b; cin >> a >> b; cin.ignore();
		stud[i] = {a, b};
		if (taken[a] > 0) {
			f={a,taken[a]};
			f2={taken[a],a};
			break;
		} else if (taken[b] > 0) {
			f={a,taken[a]};
			f2={taken[a],a};
			break;
		}
		taken[a] = b;
		taken[b] = a;
	}
	
	for (int i = 1; i <= p; i++) {
		pair<int,int> j=stud[i];
		if (j==f || j == f2) {
			cout << j.first << " " << j.second;
			break;
		}
	}
	return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
100
79 22
53 70
7 23
91 26
...

correct output
75 45

user output
75 45

Test 2

Group: 1

Verdict:

input
100
71 84
54 25
91 34
98 30
...

correct output
27 49

user output
8 27

Test 3

Group: 1

Verdict:

input
100
74 68
86 10
83 56
31 87
...

correct output
67 2

user output
(empty)

Test 4

Group: 1

Verdict:

input
100
85 43
95 8
53 1
29 86
...

correct output
54 60

user output
46 54

Test 5

Group: 1

Verdict:

input
100
71 69
74 45
8 95
12 32
...

correct output
5 7

user output
(empty)

Test 6

Group: 2

Verdict:

input
100000
95086 86958
87818 74731
27185 49356
54360 7043
...

correct output
60551 58365

user output
(empty)

Test 7

Group: 2

Verdict:

input
100000
14011 98742
82421 87350
55194 56454
90097 92904
...

correct output
50997 58566

user output
3916 50997

Test 8

Group: 2

Verdict:

input
100000
72139 85248
98125 85461
39422 60426
45770 13451
...

correct output
50397 41760

user output
(empty)

Test 9

Group: 2

Verdict:

input
100000
32124 96365
8819 68067
90795 31927
45745 64571
...

correct output
56735 39394

user output
(empty)

Test 10

Group: 2

Verdict:

input
100000
70709 61209
69548 3671
2215 57335
2539 71294
...

correct output
69366 23793

user output
50768 69366