oj.uz

Submission #851134

# Submission time Handle Problem Language Result Execution time Memory
851134 2023-09-18T15:02:14 Z Benmath Bosses (BOI16_bosses) C++14
67 / 100
 1500 ms 952 KB 
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#include <bits/stdc++.h>

using namespace std;
int n;
vector<int> v[5010];
int vis[5010];
int vis_dfs[5010];
int subtree[5010];
vector<int> adjl[5010];

int brojac = 0;
int brojac_posj = 0;
void dfs (int s){
    vis_dfs[s]++;
    subtree[s]++;
    for(int i = 0; i < adjl[s].size(); i++){
        if(vis_dfs[adjl[s][i]] == 0){
            dfs(adjl[s][i]);
            subtree[s] += subtree[adjl[s][i]];
            
        }
    }
    brojac = brojac + subtree[s];
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n;
    for (int i = 1; i <= n; i++){
        int x;
        cin >> x;
        for(int j = 0;j < x;j++){
            int y;
            cin >> y;
            v[i].push_back(y);
        }
    }
    int ans = 1e9;
    
    for(int i = 1; i <= n; i++){
        brojac_posj = 0;
        for(int j = 1; j <= n; j++){
            vis[j] = 0;
            vis_dfs[j] = 0;
            subtree[j] = 0;
            adjl[j].clear();
        }
        vis[i]++;
        brojac_posj++;
        brojac = 0;
        queue<int>q;
        q.push(i);
        while (!q.empty()){
            int a = q.front();
            q.pop();
            for (int j = 1; j <= n; j++){
                if (vis[j] == 0){
                    for (int k = 0; k < v[j].size(); k++){
                        if(v[j][k] == a){
                           adjl[a].push_back(j);
                           vis[j]++;
                           brojac_posj++;
                           q.push(j);
                            break;
                        }
                    }
                }
            }
    
             
            
        }
        if(n<=4000){
        if(brojac_posj == n){
        dfs (i);
        ans = min(ans, brojac);
        }
        }
        
    }
    cout << ans;
}

Compilation message

bosses.cpp: In function 'void dfs(int)':
bosses.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i = 0; i < adjl[s].size(); i++){
      |                    ~~^~~~~~~~~~~~~~~~
bosses.cpp: In function 'int main()':
bosses.cpp:67:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |                     for (int k = 0; k < v[j].size(); k++){
      |                                     ~~^~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 856 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 856 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 4 ms 604 KB Output is correct
11 Correct 4 ms 604 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 856 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 4 ms 604 KB Output is correct
11 Correct 4 ms 604 KB Output is correct
12 Correct 27 ms 604 KB Output is correct
13 Correct 12 ms 600 KB Output is correct
14 Execution timed out 1575 ms 952 KB Time limit exceeded
15 Halted 0 ms 0 KB -