CSES - Datatähti 2018 loppu - Results
 Task: Tanssiaiset Sender: Olli Submission time: 2018-01-18 12:20:14 +0200 Language: C++ Status: READY Result: 100
Feedback
groupverdictscore
#1ACCEPTED35
#2ACCEPTED65
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1details
#2ACCEPTED0.04 s1details
#3ACCEPTED0.04 s1details
#4ACCEPTED0.04 s1details
#5ACCEPTED0.04 s1details
#6ACCEPTED0.10 s2details
#7ACCEPTED0.09 s2details
#8ACCEPTED0.08 s2details
#9ACCEPTED0.10 s2details
#10ACCEPTED0.08 s2details

### Code

```#include <iostream>
#include <vector>

using namespace std;

const int N = 1e5 + 5;

vector<pair<int, int> > pairs;
int amount[N];

int main() {
int n;
cin >> n;
for(int i = 0; i <= n/2; ++i) {
int a, b;
cin >> a >> b;
++amount[a];
++amount[b];
pairs.push_back(make_pair(a, b));
}

int firs = 0;
int secon = 0;
for(int i = 1; i <= n; ++i) {
if(amount[i] > 1) {
if(firs == 0) {
firs = i;
} else {
secon = i;
break;
}
}
}

for(int i = 0; i <= n/2; ++i) {
int f = pairs[i].first;
int s = pairs[i].second;
if(f == firs && s == secon) {
cout << f << " " << s << "\n";
return 0;
} else if (f == secon && s == firs) {
cout << f << " " << s << "\n";
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: ACCEPTED

input
100
71 84
54 25
91 34
98 30
...

correct output
27 49

user output
27 49

#### Test 3

Group: 1

Verdict: ACCEPTED

input
100
74 68
86 10
83 56
31 87
...

correct output
67 2

user output
67 2

#### Test 4

Group: 1

Verdict: ACCEPTED

input
100
85 43
95 8
53 1
29 86
...

correct output
54 60

user output
54 60

#### Test 5

Group: 1

Verdict: ACCEPTED

input
100
71 69
74 45
8 95
12 32
...

correct output
5 7

user output
5 7

#### Test 6

Group: 2

Verdict: ACCEPTED

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

correct output
60551 58365

user output
60551 58365

#### Test 7

Group: 2

Verdict: ACCEPTED

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

correct output
50997 58566

user output
50997 58566

#### Test 8

Group: 2

Verdict: ACCEPTED

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

correct output
50397 41760

user output
50397 41760

#### Test 9

Group: 2

Verdict: ACCEPTED

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

correct output
56735 39394

user output
56735 39394

#### Test 10

Group: 2

Verdict: ACCEPTED

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

correct output
69366 23793

user output
69366 23793