oj.uz

Submission #1050865

# Submission time Handle Problem Language Result Execution time Memory
1050865 2024-08-09T15:47:03 Z amine_aroua Fountain Parks (IOI21_parks) C++17
5 / 100
 3500 ms 58948 KB 
#include "parks.h"
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>> adj;
vector<bool> vis;
void dfs(int i)
{
    if(vis[i])
        return;
    vis[i] = 1;
    for(auto j : adj[i])
    {
        dfs(j);
    }
}
void add_edge(int u , int v)
{
    adj[u].push_back(v);
    adj[v].push_back(u);
}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int construct_roads(std::vector<int> x, std::vector<int> y) {
    int n= (int)x.size();
    adj.assign(n , {});
    vis.assign(n , 0);
    vector<int> u , v , a , b;
    map<pair<int, int> , int> idx;
    set<pair<int ,int>> taken;
    for(int i = 0 ; i <n ; i++)
    {
        idx[{x[i] , y[i]}] = i;
    }
    vector<pair<int ,int>> vv;
    for(int i = 0 ; i < n ; i++)
        vv.push_back({x[i] , y[i]});
    int cnt = 50;
    while(cnt--)
    {
        u.clear();
        v.clear();
        a.clear();
        b.clear();
        taken.clear();
        adj.assign(n , {});
        vis.assign(n ,0);
        shuffle(vv.begin() , vv.end() , rng);
        for(int i = 0 ; i < n ;i++)
        {
            x[i] = vv[i].first , y[i] = vv[i].second;
        }
        bool acc = 1;
        for(int i = 0 ; i < n ;i++)
        {
            if(idx.count({x[i] + 2 , y[i]}))
            {
                if(!taken.count({x[i] + 1 , y[i] - 1}))
                {
                    u.push_back(idx[{x[i] , y[i]}]);
                    v.push_back(idx[{x[i] + 2 , y[i]}]);
                    a.push_back(x[i] + 1);
                    b.push_back(y[i] - 1);
                    taken.insert({x[i] + 1 , y[i] - 1});
                }
                else if(!taken.count({x[i] + 1 , y[i] + 1}))
                {
                    u.push_back(idx[{x[i] , y[i]}]);
                    v.push_back(idx[{x[i] + 2 , y[i]}]);
                    a.push_back(x[i] + 1);
                    b.push_back(y[i] + 1);
                    taken.insert({x[i] + 1 , y[i] + 1});
                }
            }
            if(idx.count({x[i] , y[i] + 2}))
            {
                
                if(!taken.count({x[i] - 1 , y[i] + 1}))
                {
                    u.push_back(idx[{x[i] , y[i]}]);
                    v.push_back(idx[{x[i] , y[i] + 2}]);
                    b.push_back(y[i] + 1);
                    a.push_back(x[i] - 1);
                    taken.insert({x[i] - 1 , y[i] +1});
                }
                else if(!taken.count({x[i] + 1 , y[i] + 1}))
                {
                    u.push_back(idx[{x[i] , y[i]}]);
                    v.push_back(idx[{x[i] , y[i] + 2}]);
                    b.push_back(y[i] + 1);
                    a.push_back(x[i] + 1);
                    taken.insert({x[i] + 1 , y[i] +1});
                }
            }
        }
        for(int i = 0 ; i < (int)u.size() ; i++)
        {
            add_edge(u[i] , v[i]);
        }
        dfs(0);
        for(int i = 0 ; i < n ; i++)
        {
            if(!vis[i])
            {
                acc = 0;
                break;
            }
        }
        if(!acc)
            continue;
        build(u , v , a , b);
        return 1;
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 150 ms 27172 KB Output is correct
10 Correct 11 ms 3160 KB Output is correct
11 Correct 69 ms 14976 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 1745 ms 10412 KB Output is correct
14 Correct 17 ms 604 KB Output is correct
15 Correct 41 ms 832 KB Output is correct
16 Correct 178 ms 26024 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 150 ms 27172 KB Output is correct
10 Correct 11 ms 3160 KB Output is correct
11 Correct 69 ms 14976 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 1745 ms 10412 KB Output is correct
14 Correct 17 ms 604 KB Output is correct
15 Correct 41 ms 832 KB Output is correct
16 Correct 178 ms 26024 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 465 ms 58948 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 84 ms 1108 KB Output is correct
27 Correct 121 ms 1332 KB Output is correct
28 Correct 146 ms 23760 KB Output is correct
29 Correct 237 ms 34068 KB Output is correct
30 Correct 354 ms 47624 KB Output is correct
31 Correct 476 ms 58352 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 392 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 39 ms 860 KB Output is correct
44 Correct 64 ms 860 KB Output is correct
45 Execution timed out 3598 ms 22412 KB Time limit exceeded
46 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 150 ms 27172 KB Output is correct
10 Correct 11 ms 3160 KB Output is correct
11 Correct 69 ms 14976 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 1745 ms 10412 KB Output is correct
14 Correct 17 ms 604 KB Output is correct
15 Correct 41 ms 832 KB Output is correct
16 Correct 178 ms 26024 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 465 ms 58948 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 84 ms 1108 KB Output is correct
27 Correct 121 ms 1332 KB Output is correct
28 Correct 146 ms 23760 KB Output is correct
29 Correct 237 ms 34068 KB Output is correct
30 Correct 354 ms 47624 KB Output is correct
31 Correct 476 ms 58352 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 392 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 39 ms 860 KB Output is correct
44 Correct 64 ms 860 KB Output is correct
45 Execution timed out 3598 ms 22412 KB Time limit exceeded
46 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 150 ms 27172 KB Output is correct
10 Correct 11 ms 3160 KB Output is correct
11 Correct 69 ms 14976 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 1745 ms 10412 KB Output is correct
14 Correct 17 ms 604 KB Output is correct
15 Correct 41 ms 832 KB Output is correct
16 Correct 178 ms 26024 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 432 KB Output is correct
20 Execution timed out 3590 ms 39332 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 150 ms 27172 KB Output is correct
10 Correct 11 ms 3160 KB Output is correct
11 Correct 69 ms 14976 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 1745 ms 10412 KB Output is correct
14 Correct 17 ms 604 KB Output is correct
15 Correct 41 ms 832 KB Output is correct
16 Correct 178 ms 26024 KB Output is correct
17 Correct 349 ms 55432 KB Output is correct
18 Correct 374 ms 53124 KB Output is correct
19 Execution timed out 3570 ms 41932 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 150 ms 27172 KB Output is correct
10 Correct 11 ms 3160 KB Output is correct
11 Correct 69 ms 14976 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 1745 ms 10412 KB Output is correct
14 Correct 17 ms 604 KB Output is correct
15 Correct 41 ms 832 KB Output is correct
16 Correct 178 ms 26024 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 465 ms 58948 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 84 ms 1108 KB Output is correct
27 Correct 121 ms 1332 KB Output is correct
28 Correct 146 ms 23760 KB Output is correct
29 Correct 237 ms 34068 KB Output is correct
30 Correct 354 ms 47624 KB Output is correct
31 Correct 476 ms 58352 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 392 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 39 ms 860 KB Output is correct
44 Correct 64 ms 860 KB Output is correct
45 Execution timed out 3598 ms 22412 KB Time limit exceeded
46 Halted 0 ms 0 KB -