oj.uz

Submission #1050861

# Submission time Handle Problem Language Result Execution time Memory
1050861 2024-08-09T15:44:12 Z amine_aroua Fountain Parks (IOI21_parks) C++17
5 / 100
 3500 ms 60024 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 = 100;
    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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 142 ms 27304 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14972 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 3381 ms 10324 KB Output is correct
14 Correct 31 ms 600 KB Output is correct
15 Correct 82 ms 600 KB Output is correct
16 Correct 150 ms 26016 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 142 ms 27304 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14972 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 3381 ms 10324 KB Output is correct
14 Correct 31 ms 600 KB Output is correct
15 Correct 82 ms 600 KB Output is correct
16 Correct 150 ms 26016 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 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 58668 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 167 ms 1116 KB Output is correct
27 Correct 236 ms 1368 KB Output is correct
28 Correct 138 ms 24324 KB Output is correct
29 Correct 229 ms 35272 KB Output is correct
30 Correct 331 ms 48876 KB Output is correct
31 Correct 452 ms 60024 KB Output is correct
32 Correct 1 ms 348 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 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 344 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 77 ms 860 KB Output is correct
44 Correct 125 ms 860 KB Output is correct
45 Execution timed out 3573 ms 23524 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 142 ms 27304 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14972 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 3381 ms 10324 KB Output is correct
14 Correct 31 ms 600 KB Output is correct
15 Correct 82 ms 600 KB Output is correct
16 Correct 150 ms 26016 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 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 58668 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 167 ms 1116 KB Output is correct
27 Correct 236 ms 1368 KB Output is correct
28 Correct 138 ms 24324 KB Output is correct
29 Correct 229 ms 35272 KB Output is correct
30 Correct 331 ms 48876 KB Output is correct
31 Correct 452 ms 60024 KB Output is correct
32 Correct 1 ms 348 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 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 344 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 77 ms 860 KB Output is correct
44 Correct 125 ms 860 KB Output is correct
45 Execution timed out 3573 ms 23524 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 142 ms 27304 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14972 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 3381 ms 10324 KB Output is correct
14 Correct 31 ms 600 KB Output is correct
15 Correct 82 ms 600 KB Output is correct
16 Correct 150 ms 26016 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 348 KB Output is correct
20 Execution timed out 3591 ms 39364 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 142 ms 27304 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14972 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 3381 ms 10324 KB Output is correct
14 Correct 31 ms 600 KB Output is correct
15 Correct 82 ms 600 KB Output is correct
16 Correct 150 ms 26016 KB Output is correct
17 Correct 362 ms 55432 KB Output is correct
18 Correct 365 ms 54984 KB Output is correct
19 Execution timed out 3578 ms 41872 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 142 ms 27304 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14972 KB Output is correct
12 Correct 16 ms 4700 KB Output is correct
13 Correct 3381 ms 10324 KB Output is correct
14 Correct 31 ms 600 KB Output is correct
15 Correct 82 ms 600 KB Output is correct
16 Correct 150 ms 26016 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 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 58668 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 167 ms 1116 KB Output is correct
27 Correct 236 ms 1368 KB Output is correct
28 Correct 138 ms 24324 KB Output is correct
29 Correct 229 ms 35272 KB Output is correct
30 Correct 331 ms 48876 KB Output is correct
31 Correct 452 ms 60024 KB Output is correct
32 Correct 1 ms 348 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 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 344 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 77 ms 860 KB Output is correct
44 Correct 125 ms 860 KB Output is correct
45 Execution timed out 3573 ms 23524 KB Time limit exceeded
46 Halted 0 ms 0 KB -