oj.uz

Submission #436746

# Submission time Handle Problem Language Result Execution time Memory
436746 2021-06-24T20:22:12 Z PiejanVDC Fountain Parks (IOI21_parks) C++17
15 / 100
 293 ms 31064 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;

int construct_roads(vector<int>x, vector<int> y) {
    vector<pair<int,int>>two,four;
    for(int i = 0 ; i < y.size() ; i++) {
        if(x[i] == 2) two.push_back({y[i],i});
        else four.push_back({y[i],i});
    }
    vector<int>adj[x.size()];
    vector<int>u,v,a,b;
    sort(two.begin(),two.end());
    sort(four.begin(),four.end());
    for(int i = 0 ; i < (int)two.size()-1 ; i++) {
        if(two[i+1].first-two[i].first == 2) {
            u.push_back(two[i].second);
            v.push_back(two[i+1].second);
            a.push_back(1);
            b.push_back(two[i].first+1);
            adj[two[i].second].push_back(two[i+1].second);
            adj[two[i+1].second].push_back(two[i].second);
        }
    }
    for(int i = 0 ; i < (int)four.size()-1 ; i++) {
        if(four[i+1].first-four[i].first == 2) {
            u.push_back(four[i].second);
            v.push_back(four[i+1].second);
            a.push_back(5);
            b.push_back(four[i].first+1);
            adj[four[i].second].push_back(four[i+1].second);
            adj[four[i+1].second].push_back(four[i].second);
        }
    }
    if((int)two.size() > 0 && (int)four.size() > 0) {
        for(int i = 0 ; i < two.size() ; i++) {
            int left=0,right=four.size();
            while(left <= right) {
                int mid = (left+right)/2;
                if(four[mid].first == two[i].first) {
                    u.push_back(two[i].second);
                    v.push_back(four[mid].second);
                    a.push_back(3);
                    b.push_back(two[i].first+1);
                    adj[two[i].second].push_back(four[mid].second);
                    adj[four[mid].second].push_back(two[i].second);
                    break;
                }
                if(four[mid].first < two[i].first) {
                    left=mid+1;
                } else {
                    right=mid-1;
                }
            }
        }
    }
    stack<int>s;
    s.push(0);
    vector<bool>vis(x.size(),false);
    while(!s.empty()) {
        int node = s.top();
        s.pop();
        vis[node]=true;
        for(auto z : adj[node]) {
            if(!vis[z]) s.push(z);
        }
    }
    bool f=true;
    for(auto z : vis) {
        if(!z) {
            f=false; break;
        }
    }
    if(f) {
        build(u,v,a,b);
        return 1;
    }
    return 0;
}

Compilation message

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:7:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i = 0 ; i < y.size() ; i++) {
      |                     ~~^~~~~~~~~~
parks.cpp:36:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for(int i = 0 ; i < two.size() ; i++) {
      |                         ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 98 ms 13320 KB Output is correct
10 Correct 8 ms 1660 KB Output is correct
11 Correct 51 ms 7288 KB Output is correct
12 Correct 13 ms 2284 KB Output is correct
13 Correct 18 ms 4464 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 105 ms 13312 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 98 ms 13320 KB Output is correct
10 Correct 8 ms 1660 KB Output is correct
11 Correct 51 ms 7288 KB Output is correct
12 Correct 13 ms 2284 KB Output is correct
13 Correct 18 ms 4464 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 105 ms 13312 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 293 ms 31064 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 2 ms 588 KB Output is correct
27 Correct 3 ms 748 KB Output is correct
28 Correct 108 ms 12476 KB Output is correct
29 Correct 151 ms 18556 KB Output is correct
30 Correct 224 ms 24428 KB Output is correct
31 Correct 292 ms 31056 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 588 KB Output is correct
45 Correct 111 ms 12884 KB Output is correct
46 Correct 195 ms 19604 KB Output is correct
47 Correct 184 ms 19604 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 98 ms 13320 KB Output is correct
10 Correct 8 ms 1660 KB Output is correct
11 Correct 51 ms 7288 KB Output is correct
12 Correct 13 ms 2284 KB Output is correct
13 Correct 18 ms 4464 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 105 ms 13312 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 293 ms 31064 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 2 ms 588 KB Output is correct
27 Correct 3 ms 748 KB Output is correct
28 Correct 108 ms 12476 KB Output is correct
29 Correct 151 ms 18556 KB Output is correct
30 Correct 224 ms 24428 KB Output is correct
31 Correct 292 ms 31056 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 588 KB Output is correct
45 Correct 111 ms 12884 KB Output is correct
46 Correct 195 ms 19604 KB Output is correct
47 Correct 184 ms 19604 KB Output is correct
48 Incorrect 1 ms 204 KB Solution announced impossible, but it is possible.
49 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 98 ms 13320 KB Output is correct
10 Correct 8 ms 1660 KB Output is correct
11 Correct 51 ms 7288 KB Output is correct
12 Correct 13 ms 2284 KB Output is correct
13 Correct 18 ms 4464 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 105 ms 13312 KB Output is correct
17 Incorrect 1 ms 204 KB Solution announced impossible, but it is possible.
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 98 ms 13320 KB Output is correct
10 Correct 8 ms 1660 KB Output is correct
11 Correct 51 ms 7288 KB Output is correct
12 Correct 13 ms 2284 KB Output is correct
13 Correct 18 ms 4464 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 105 ms 13312 KB Output is correct
17 Incorrect 122 ms 16564 KB Solution announced impossible, but it is possible.
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 98 ms 13320 KB Output is correct
10 Correct 8 ms 1660 KB Output is correct
11 Correct 51 ms 7288 KB Output is correct
12 Correct 13 ms 2284 KB Output is correct
13 Correct 18 ms 4464 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 105 ms 13312 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 293 ms 31064 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 2 ms 588 KB Output is correct
27 Correct 3 ms 748 KB Output is correct
28 Correct 108 ms 12476 KB Output is correct
29 Correct 151 ms 18556 KB Output is correct
30 Correct 224 ms 24428 KB Output is correct
31 Correct 292 ms 31056 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 588 KB Output is correct
45 Correct 111 ms 12884 KB Output is correct
46 Correct 195 ms 19604 KB Output is correct
47 Correct 184 ms 19604 KB Output is correct
48 Incorrect 1 ms 204 KB Solution announced impossible, but it is possible.
49 Halted 0 ms 0 KB -