oj.uz

Submission #1050862

# Submission time Handle Problem Language Result Execution time Memory
1050862 2024-08-09T15:46:09 Z amine_aroua Fountain Parks (IOI21_parks) C++17
5 / 100
 3500 ms 58648 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 = 80;
    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 1 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 148 ms 27388 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14960 KB Output is correct
12 Correct 17 ms 4696 KB Output is correct
13 Correct 2792 ms 10400 KB Output is correct
14 Correct 26 ms 604 KB Output is correct
15 Correct 55 ms 600 KB Output is correct
16 Correct 155 ms 26020 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 148 ms 27388 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14960 KB Output is correct
12 Correct 17 ms 4696 KB Output is correct
13 Correct 2792 ms 10400 KB Output is correct
14 Correct 26 ms 604 KB Output is correct
15 Correct 55 ms 600 KB Output is correct
16 Correct 155 ms 26020 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 432 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 451 ms 58648 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 139 ms 1116 KB Output is correct
27 Correct 205 ms 1116 KB Output is correct
28 Correct 145 ms 23772 KB Output is correct
29 Correct 251 ms 34248 KB Output is correct
30 Correct 376 ms 47348 KB Output is correct
31 Correct 462 ms 58504 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 424 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 62 ms 860 KB Output is correct
44 Correct 101 ms 860 KB Output is correct
45 Execution timed out 3569 ms 22704 KB Time limit exceeded
46 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 148 ms 27388 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14960 KB Output is correct
12 Correct 17 ms 4696 KB Output is correct
13 Correct 2792 ms 10400 KB Output is correct
14 Correct 26 ms 604 KB Output is correct
15 Correct 55 ms 600 KB Output is correct
16 Correct 155 ms 26020 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 432 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 451 ms 58648 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 139 ms 1116 KB Output is correct
27 Correct 205 ms 1116 KB Output is correct
28 Correct 145 ms 23772 KB Output is correct
29 Correct 251 ms 34248 KB Output is correct
30 Correct 376 ms 47348 KB Output is correct
31 Correct 462 ms 58504 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 424 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 62 ms 860 KB Output is correct
44 Correct 101 ms 860 KB Output is correct
45 Execution timed out 3569 ms 22704 KB Time limit exceeded
46 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 148 ms 27388 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14960 KB Output is correct
12 Correct 17 ms 4696 KB Output is correct
13 Correct 2792 ms 10400 KB Output is correct
14 Correct 26 ms 604 KB Output is correct
15 Correct 55 ms 600 KB Output is correct
16 Correct 155 ms 26020 KB Output is correct
17 Correct 1 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 39252 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 148 ms 27388 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14960 KB Output is correct
12 Correct 17 ms 4696 KB Output is correct
13 Correct 2792 ms 10400 KB Output is correct
14 Correct 26 ms 604 KB Output is correct
15 Correct 55 ms 600 KB Output is correct
16 Correct 155 ms 26020 KB Output is correct
17 Correct 382 ms 55428 KB Output is correct
18 Correct 362 ms 53124 KB Output is correct
19 Execution timed out 3557 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 1 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 148 ms 27388 KB Output is correct
10 Correct 11 ms 3164 KB Output is correct
11 Correct 72 ms 14960 KB Output is correct
12 Correct 17 ms 4696 KB Output is correct
13 Correct 2792 ms 10400 KB Output is correct
14 Correct 26 ms 604 KB Output is correct
15 Correct 55 ms 600 KB Output is correct
16 Correct 155 ms 26020 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 432 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 451 ms 58648 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 139 ms 1116 KB Output is correct
27 Correct 205 ms 1116 KB Output is correct
28 Correct 145 ms 23772 KB Output is correct
29 Correct 251 ms 34248 KB Output is correct
30 Correct 376 ms 47348 KB Output is correct
31 Correct 462 ms 58504 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 424 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 62 ms 860 KB Output is correct
44 Correct 101 ms 860 KB Output is correct
45 Execution timed out 3569 ms 22704 KB Time limit exceeded
46 Halted 0 ms 0 KB -