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Submission #540751

# Submission time Handle Problem Language Result Execution time Memory
540751 2022-03-21T16:38:04 Z AlperenT Cijanobakterije (COCI21_cijanobakterije) C++17
70 / 70
 50 ms 13780 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1e5 + 5;

int n, m, a, b, dist[N], ans;

bool vis[N];

vector<int> tree[N];

int dfs(int v, int p){
    vis[v] = true;
    dist[v] = dist[p] + 1;

    int mx = v, cur;

    for(auto e : tree[v]){
        if(e != p){
            cur = dfs(e, v);

            if(dist[cur] > dist[mx]) mx = cur;
        }
    }

    return mx;
}

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);

    cin >> n >> m;

    for(int i = 0; i < m; i++){
        cin >> a >> b;

        tree[a].push_back(b);
        tree[b].push_back(a);
    }

    for(int i = 1; i <= n; i++){
        if(!vis[i]){
            a = dfs(i, 0);

            b = dfs(a, 0);

            ans += dist[b];
        }
    }

    cout << ans;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3548 KB Output is correct
2 Correct 14 ms 4188 KB Output is correct
3 Correct 22 ms 4996 KB Output is correct
4 Correct 26 ms 5900 KB Output is correct
5 Correct 33 ms 6732 KB Output is correct
6 Correct 41 ms 7492 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 13780 KB Output is correct
2 Correct 5 ms 3200 KB Output is correct
3 Correct 7 ms 3796 KB Output is correct
4 Correct 8 ms 4372 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 5 ms 3284 KB Output is correct
6 Correct 9 ms 4000 KB Output is correct
7 Correct 10 ms 4692 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2776 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3548 KB Output is correct
2 Correct 14 ms 4188 KB Output is correct
3 Correct 22 ms 4996 KB Output is correct
4 Correct 26 ms 5900 KB Output is correct
5 Correct 33 ms 6732 KB Output is correct
6 Correct 41 ms 7492 KB Output is correct
7 Correct 32 ms 13780 KB Output is correct
8 Correct 5 ms 3200 KB Output is correct
9 Correct 7 ms 3796 KB Output is correct
10 Correct 8 ms 4372 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 5 ms 3284 KB Output is correct
16 Correct 9 ms 4000 KB Output is correct
17 Correct 10 ms 4692 KB Output is correct
18 Correct 2 ms 2776 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2772 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 50 ms 7468 KB Output is correct
30 Correct 11 ms 4240 KB Output is correct
31 Correct 25 ms 7012 KB Output is correct
32 Correct 18 ms 4972 KB Output is correct
33 Correct 33 ms 7256 KB Output is correct
34 Correct 25 ms 5708 KB Output is correct
35 Correct 37 ms 7080 KB Output is correct
36 Correct 34 ms 6272 KB Output is correct
37 Correct 35 ms 7264 KB Output is correct
38 Correct 43 ms 6748 KB Output is correct
39 Correct 35 ms 7116 KB Output is correct