CSES - Datatähti 2018 loppu - Results
Submission details
Task:Tanssiaiset
Sender:Yytsi
Submission time:2019-01-16 12:12:41 +0200
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED35
#2ACCEPTED65
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1details
#2ACCEPTED0.02 s1details
#3ACCEPTED0.02 s1details
#4ACCEPTED0.02 s1details
#5ACCEPTED0.02 s1details
#6ACCEPTED0.04 s2details
#7ACCEPTED0.04 s2details
#8ACCEPTED0.04 s2details
#9ACCEPTED0.05 s2details
#10ACCEPTED0.04 s2details

Code

#include <bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define IO ios_base::sync_with_stdio(0); cin.tie(0)
#define ff first
#define ss second
#define pb push_back
#define INF 2147483647
#define LINF (1LL<<61LL)
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, ll> pil;

int n;
int v[101010];
pii p[101010];

int main() {
  IO; cin>>n;
  FOR(i,0,n/2+1) {
    int a,b; cin>>a>>b;
    p[i] = {a,b};
    v[a]++; v[b]++;
  }
  
  int a=0, b=0;
  FOR(i,1,n+1) {
    if (v[i] == 2) {
      if (a) b = i;
      else a = i;
    }
  }
  
  FOR(i,0,n/2+1) {
    if (p[i] == (pii){a,b} || p[i] == (pii){b,a}) {
      cout<<p[i].ff<<" "<<p[i].ss<<"\n";
    }
  }
}

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