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NOI 2019

Distance Code

  • Start: 2019-03-06 11:00:00
  • End: 2019-03-06 16:00:00
CSES - NOI 2019 - Results
Submission details
Task:Distance Code
Sender:Matias Järvenpää
Submission time:2019-03-06 12:00:51 +0200
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1, 2, 3details
#2ACCEPTED0.02 s1, 2, 3details
#30.02 s1, 2, 3details
#40.01 s1, 2, 3details
#50.01 s1, 2, 3details
#60.02 s1, 2, 3details
#70.01 s1, 2, 3details
#80.02 s1, 2, 3details
#90.01 s1, 2, 3details
#100.01 s1, 2, 3details
#110.02 s1, 2, 3details
#120.01 s2, 3details
#130.01 s2, 3details
#140.02 s2, 3details
#150.02 s2, 3details
#160.02 s3details
#170.02 s3details
#180.02 s3details
#190.01 s3details
#200.02 s1, 2, 3details

Compiler report

input/code.cpp: In function 'int64_t hae(int64_t, int64_t, int64_t, int64_t)':
input/code.cpp:15:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int64_t i=0; i<v[index].size(); i++){
                    ~^~~~~~~~~~~~~~~~
input/code.cpp: In function 'int main()':
input/code.cpp:41:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int64_t i2=0; i2<v[i].size(); i2++){
                         ~~^~~~~~~~~~~~

Code

#include <bits/stdc++.h>
using namespace std;

int64_t t,n;
int64_t ta[100000];
vector<int64_t> v[501];
set<int64_t> v2[501];

set<pair<int64_t,int64_t>> s;

int64_t hae(int64_t index, int64_t g, int64_t d, int64_t prev){
  if(g == d){
    return index;
  }
  for(int64_t i=0; i<v[index].size(); i++){
    if(v[index][i] != prev){
      int64_t temp = hae(v[index][i],g,d+1,index);
      if(temp != -1){
	return temp;
      }
    }
  }
  return -1;
}

int main(){
  cin >> t >> n;
  if(t == 2){
    for(int64_t i=0; i<(n-1); i++){
      cin >> ta[i];
    }
    v[0].push_back(1);
    v[1].push_back(0);
    int64_t index = 1;
    for(int64_t i=(n-3); i>=0; i--){
      int64_t next = hae(index,ta[i]-1,0,-1);
      v[index+1].push_back(next);
      v[next].push_back(index+1);
    }
    for(int64_t i=0; i<n; i++){
      for(int64_t i2=0; i2<v[i].size(); i2++){
	if((s.count({i,v[i][i2]}) == 0) && (s.count({v[i][i2],i}) == 0)){
	  cout << i+1 << " " << v[i][i2]+1 << "\n";
	  s.insert({v[i][i2],i});
	  s.insert({i,v[i][i2]});
	}
      }
    }
  }
  else{
    for(int64_t i=0; i<(n-1); i++){
      int64_t a,b;
      cin >> a >> b;
      v2[a].insert(b);
      v2[b].insert(a);
    }
    for(int64_t i=0; i<(n-1); i++){
      for(int64_t i2=0; i2<n; i2++){
	if(v2[i2+1].size() == 1){
	  if(i == (n-2)){
	    cout << *v2[i2+1].begin() << " ";
	  }
	  v2[*v2[i2+1].begin()].erase(i2+1);
	  v2[i2+1].erase(v2[i2+1].begin());
	  cout << i2+1 << " ";
	  break;
	}
      }
    }
    cout << "\n";
  }
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
2
2 1
view save

correct output
(empty)

user output
1 2
view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
3
3 1
2 1
view save

correct output
(empty)

user output
1 2
1 3
view save

Test 3

Group: 1, 2, 3

Verdict:

input
1
4
3 2
2 1
4 1
view save

correct output
(empty)

user output
1 2
1 3
2 3
view save

Test 4

Group: 1, 2, 3

Verdict:

input
1
4
2 3
3 4
1 3
view save

correct output
(empty)

user output
1 2
1 3
view save

Test 5

Group: 1, 2, 3

Verdict:

input
1
5
3 5
4 1
1 3
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
view save

Test 6

Group: 1, 2, 3

Verdict:

input
1
5
3 2
3 4
5 1
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
view save

Test 7

Group: 1, 2, 3

Verdict:

input
1
5
4 3
1 4
4 2
...
view save

correct output
(empty)

user output
1 2
1 3
view save

Test 8

Group: 1, 2, 3

Verdict:

input
1
10
9 3
8 9
2 9
...
view save

correct output
(empty)

user output
1 2
1 3
view save

Test 9

Group: 1, 2, 3

Verdict:

input
1
10
9 2
5 8
7 1
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
3 3
view save

Test 10

Group: 1, 2, 3

Verdict:

input
1
10
10 4
9 1
4 7
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
3 3
view save

Test 11

Group: 1, 2, 3

Verdict:

input
1
10
2 6
4 3
3 5
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
view save

Test 12

Group: 2, 3

Verdict:

input
1
500
10 6
6 255
6 428
...
view save

correct output
(empty)

user output
1 2
1 3
view save

Test 13

Group: 2, 3

Verdict:

input
1
500
152 466
451 313
158 479
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
3 3
view save

Test 14

Group: 2, 3

Verdict:

input
1
500
109 440
330 190
443 161
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
3 3
view save

Test 15

Group: 2, 3

Verdict:

input
1
500
144 373
257 233
341 318
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
3 3
view save

Test 16

Group: 3

Verdict:

input
1
100000
54983 75172
93807 75172
44082 75172
...
view save

correct output
(empty)

user output
(empty)

Test 17

Group: 3

Verdict:

input
1
100000
88863 19059
86423 76688
98536 95984
...
view save

correct output
(empty)

user output
(empty)

Test 18

Group: 3

Verdict:

input
1
100000
59979 6389
19097 24999
27846 82330
...
view save

correct output
(empty)

user output
(empty)

Test 19

Group: 3

Verdict:

input
1
100000
58761 66001
25102 51081
98625 67861
...
view save

correct output
(empty)

user output
(empty)

Test 20

Group: 1, 2, 3

Verdict:

input
1
6
2 1
3 2
4 2
...
view save

correct output
(empty)

user output
1 2
1 3
2 3
view save

Tasks

A Distance Code-B Thieves and Prisons-C Graph Ordering-

Submissions (Matias Järvenpää)

2019-03-06 14:31:31 1002019-03-06 12:00:51 0