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NOI 2019

Distance Code

  • Start: 2019-03-06 11:00:00
  • End: 2019-03-06 16:00:00
Submission details
Task:Distance Code
Sender:Ásþór Björnsson
Submission time:2019-03-06 13:36:40 +0200
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.02 s1, 2, 3details
#20.03 s1, 2, 3details
#30.02 s1, 2, 3details
#40.01 s1, 2, 3details
#50.03 s1, 2, 3details
#60.03 s1, 2, 3details
#70.02 s1, 2, 3details
#80.02 s1, 2, 3details
#90.01 s1, 2, 3details
#100.02 s1, 2, 3details
#110.03 s1, 2, 3details
#120.04 s2, 3details
#130.05 s2, 3details
#140.04 s2, 3details
#150.06 s2, 3details
#16--3details
#17--3details
#18--3details
#19--3details
#200.02 s1, 2, 3details

Compiler report

input/code.cpp: In function 'void bfs(int)':
input/code.cpp:17:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < edg[cur].size(); i++){
                        ~~^~~~~~~~~~~~~~~~~
input/code.cpp: In function 'int main()':
input/code.cpp:47:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                     for(int r = 0; r < taken.size(); r++){
                                    ~~^~~~~~~~~~~~~~

Code

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

vector<int> edg[100050];
bool vis[100050];
int dist[100050];

void bfs(int start){
    memset(vis, 0, sizeof(vis));
    memset(dist, -1, sizeof(dist));
    queue<int> q;
    q.push(start);
    dist[start] = true;
    while(!q.empty()){
        int cur = q.front();
        q.pop();
        for(int i = 0; i < edg[cur].size(); i++){
            int nxt = edg[cur][i];
            if(!vis[nxt]){
                vis[nxt] = true;
                dist[nxt] = dist[cur]+1;
                q.push(nxt);
            }
        }
    }
}

int main() {
    int n, k;
    cin >> k >> n;
    vector<int> taken;
    if(k == 1){
        for(int i = 0; i < n-1; i++){
            int x, y;
            cin >> x >> y;
            edg[x].push_back(y);
            edg[y].push_back(x);
        }
        int nodes = n;
        int curr = 1;
        bfs(1);
        while(nodes > 0){
            int best = 2;
            for(int i = 1; i < 10; i++){
                if(dist[i] > dist[best] && i != curr){
                    bool add = true;
                    for(int r = 0; r < taken.size(); r++){
                        if(i == taken[r]) add = false;
                    }
                    if(add) best = i;
                }
            }
            cout << best << ' ';
            taken.push_back(best);
            bfs(best);
            curr = best;
            nodes--;
            for(int i = 0; i < 10; i++){
                cout << dist[i] << endl;
            }
            cout << "new" << endl;
        }
    }else{
        int dis[10];
        for(int i = 0; i < n-1; i++){
            cin >> dis[i];
        }
        int m2;
        for(int i = 0; i < n-2; i++){
            int m = *max_element(dis, dis+n-1);
            for(int x = 0; x < n-1; x++){
                if(dis[x] == m){
                    m = x+1;
                    dis[x] = 0;
                    break;
                }
            }
            m2 = *max_element(dis, dis+n-1);
            for(int x = 0; x < n-1; x++){
                if(dis[x] == m2){
                    m2 = x+1;
                    break;
                }
            }
            cout << m << ' ' << m2 << endl;
        }
        int ind = 0;
        for(int i = 0; i < n-1; i++){
            if(dis[i] != 0){
                ind = i+1;
                break;
            }
        }
        cout << n << ' ' << ind;
    }
    return 0;
}

Test details

Test 1

Group: 1, 2, 3

Verdict:

input
1
2
2 1
view save

correct output
(empty)

user output
2 -1
2
3
-1
-1
...
view save

Test 2

Group: 1, 2, 3

Verdict:

input
1
3
3 1
2 1
view save

correct output
(empty)

user output
2 -1
2
3
3
-1
...
Truncated

Test 3

Group: 1, 2, 3

Verdict:

input
1
4
3 2
2 1
4 1
view save

correct output
(empty)

user output
3 -1
3
2
3
4
...
Truncated

Test 4

Group: 1, 2, 3

Verdict:

input
1
4
2 3
3 4
1 3
view save

correct output
(empty)

user output
2 -1
3
3
2
3
...
Truncated

Test 5

Group: 1, 2, 3

Verdict:

input
1
5
3 5
4 1
1 3
...
view save

correct output
(empty)

user output
2 -1
3
3
4
2
...
Truncated

Test 6

Group: 1, 2, 3

Verdict:

input
1
5
3 2
3 4
5 1
...
view save

correct output
(empty)

user output
2 -1
3
3
2
3
...
Truncated

Test 7

Group: 1, 2, 3

Verdict:

input
1
5
4 3
1 4
4 2
...
view save

correct output
(empty)

user output
2 -1
3
3
3
2
...
Truncated

Test 8

Group: 1, 2, 3

Verdict:

input
1
10
9 3
8 9
2 9
...
view save

correct output
(empty)

user output
2 -1
3
3
3
3
...
Truncated

Test 9

Group: 1, 2, 3

Verdict:

input
1
10
9 2
5 8
7 1
...
view save

correct output
(empty)

user output
4 -1
7
4
3
3
...
Truncated

Test 10

Group: 1, 2, 3

Verdict:

input
1
10
10 4
9 1
4 7
...
view save

correct output
(empty)

user output
5 -1
6
2
8
5
...
Truncated

Test 11

Group: 1, 2, 3

Verdict:

input
1
10
2 6
4 3
3 5
...
view save

correct output
(empty)

user output
4 -1
6
7
2
3
...
Truncated

Test 12

Group: 2, 3

Verdict:

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

correct output
(empty)

user output
2 -1
3
3
3
3
...
Truncated

Test 13

Group: 2, 3

Verdict:

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

correct output
(empty)

user output
5 -1
337
333
354
61
...
Truncated

Test 14

Group: 2, 3

Verdict:

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

correct output
(empty)

user output
9 -1
17
14
11
11
...
Truncated

Test 15

Group: 2, 3

Verdict:

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

correct output
(empty)

user output
6 -1
94
67
31
72
...
Truncated

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
5 -1
4
3
2
4
...
Truncated

Tasks

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

Submissions (Ásþór Björnsson)

2019-03-06 13:36:40 02019-03-06 13:03:05 0