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Submission #710565

# Submission time Handle Problem Language Result Execution time Memory
710565 2023-03-15T11:10:28 Z lam Duathlon (APIO18_duathlon) C++14
49 / 100
 80 ms 33672 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int maxn = 1e5 + 10;
int n,m,ans;
vector <int> adj[maxn],adj2[maxn];
stack <int> st;
int l[maxn],t[maxn],cnt,sl,bcc,s[maxn];
void dfs(int x, int p)
{
    l[x] = t[x] = ++cnt; sl++;
    st.push(x);
    for (int i:adj[x])
        if (i!=p)
    {
        if (t[i]==0)
        {
            dfs(i,x);
            l[x]=min(l[x],l[i]);
            if (l[i]>=t[x])
            {
                bcc++;
//                cout<<bcc+n<<' '<<st.size()<<" := "<<x<<' ';
                adj2[x].push_back(bcc + n);
                int temp;
                do
                {
                    temp = st.top(); st.pop();
//                    cout<<temp<<" , ";
                    adj2[bcc+n].push_back(temp);
                }
                while (temp!=i);
//                cout<<endl;
            }
        }
        else l[x] = min(l[x],t[i]);
    }
//    cout<<x<<" :: "<<l[x]<<' '<<t[x]<<endl;
}
void dfs2(int x, int p)
{
    s[x] = (x<=n);
//    cout<<x<<" !! "<<endl;
    for (int i:adj2[x])
        if (i!=p)
    {
        dfs2(i,x);
        s[x]+=s[i];
        if (x>n)
        {
            ans -= 1LL*((int)adj2[x].size()) * s[i] * (s[i]-1);
        }
    }
//    cout<<x<<' '<<sl<<" -> "<<s[x]<<' '<<(int)adj[x].size()<<endl;
    if (x>n) ans -= 1LL* (sl - s[x]) * (sl - s[x] - 1) * (int)adj2[x].size();
}
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    cin>>n>>m;
    for (int i=1; i<=m; i++)
    {
        int u,v; cin>>u>>v;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }
    cnt = bcc = sl = 0;
    for (int i=1; i<=n; i++)
    {
        if (t[i]) continue;
        sl=0;
        dfs(i,i);
        ans += sl*(sl-1)*(sl-2);
        dfs2(i,i);
    }
    cout<<ans<<'\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4908 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 5020 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 3 ms 5024 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4984 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5020 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 4 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 5036 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 4 ms 5036 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 5 ms 5024 KB Output is correct
29 Correct 4 ms 5012 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 4 ms 4948 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 3 ms 5024 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5024 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4908 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 5020 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 3 ms 5024 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4984 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5020 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 4 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 5036 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 4 ms 5036 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 5 ms 5024 KB Output is correct
29 Correct 4 ms 5012 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 4 ms 4948 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 3 ms 5024 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5024 KB Output is correct
36 Correct 5 ms 5032 KB Output is correct
37 Correct 4 ms 4948 KB Output is correct
38 Correct 4 ms 5024 KB Output is correct
39 Correct 4 ms 5056 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 4 ms 5020 KB Output is correct
42 Correct 4 ms 5028 KB Output is correct
43 Correct 5 ms 4992 KB Output is correct
44 Correct 5 ms 5020 KB Output is correct
45 Correct 5 ms 4948 KB Output is correct
46 Correct 4 ms 5028 KB Output is correct
47 Correct 3 ms 4948 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5028 KB Output is correct
50 Correct 4 ms 5024 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 4 ms 5024 KB Output is correct
53 Correct 3 ms 4948 KB Output is correct
54 Correct 3 ms 4948 KB Output is correct
55 Correct 3 ms 4948 KB Output is correct
56 Correct 4 ms 5016 KB Output is correct
57 Correct 3 ms 4948 KB Output is correct
58 Correct 4 ms 4948 KB Output is correct
59 Correct 3 ms 4948 KB Output is correct
60 Correct 5 ms 4948 KB Output is correct
61 Correct 3 ms 4948 KB Output is correct
62 Correct 3 ms 4948 KB Output is correct
63 Correct 3 ms 4948 KB Output is correct
64 Correct 3 ms 5028 KB Output is correct
65 Correct 4 ms 5024 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 22768 KB Output is correct
2 Correct 80 ms 22856 KB Output is correct
3 Runtime error 69 ms 33672 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5164 KB Output is correct
2 Correct 5 ms 5076 KB Output is correct
3 Correct 4 ms 5076 KB Output is correct
4 Correct 5 ms 5336 KB Output is correct
5 Correct 4 ms 5156 KB Output is correct
6 Correct 4 ms 5160 KB Output is correct
7 Correct 4 ms 5156 KB Output is correct
8 Correct 4 ms 5164 KB Output is correct
9 Correct 4 ms 5164 KB Output is correct
10 Correct 4 ms 5076 KB Output is correct
11 Correct 5 ms 5156 KB Output is correct
12 Correct 3 ms 5076 KB Output is correct
13 Correct 3 ms 5160 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 5 ms 5148 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 4 ms 5028 KB Output is correct
18 Correct 5 ms 5156 KB Output is correct
19 Correct 4 ms 5156 KB Output is correct
20 Correct 4 ms 5076 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 66 ms 18996 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 4 ms 5160 KB Output is correct
3 Correct 3 ms 5076 KB Output is correct
4 Correct 4 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 4 ms 5076 KB Output is correct
7 Correct 4 ms 5076 KB Output is correct
8 Correct 3 ms 5012 KB Output is correct
9 Correct 3 ms 5096 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 4 ms 5036 KB Output is correct
12 Correct 3 ms 5204 KB Output is correct
13 Correct 4 ms 5140 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 4 ms 5076 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 5 ms 5032 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 4 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 4 ms 5076 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 4 ms 5076 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 62 ms 18992 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4908 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 5020 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 3 ms 5024 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4984 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5020 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 4 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 5036 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 4 ms 5036 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 5 ms 5024 KB Output is correct
29 Correct 4 ms 5012 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 4 ms 4948 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 3 ms 5024 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5024 KB Output is correct
36 Correct 5 ms 5032 KB Output is correct
37 Correct 4 ms 4948 KB Output is correct
38 Correct 4 ms 5024 KB Output is correct
39 Correct 4 ms 5056 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 4 ms 5020 KB Output is correct
42 Correct 4 ms 5028 KB Output is correct
43 Correct 5 ms 4992 KB Output is correct
44 Correct 5 ms 5020 KB Output is correct
45 Correct 5 ms 4948 KB Output is correct
46 Correct 4 ms 5028 KB Output is correct
47 Correct 3 ms 4948 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5028 KB Output is correct
50 Correct 4 ms 5024 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 4 ms 5024 KB Output is correct
53 Correct 3 ms 4948 KB Output is correct
54 Correct 3 ms 4948 KB Output is correct
55 Correct 3 ms 4948 KB Output is correct
56 Correct 4 ms 5016 KB Output is correct
57 Correct 3 ms 4948 KB Output is correct
58 Correct 4 ms 4948 KB Output is correct
59 Correct 3 ms 4948 KB Output is correct
60 Correct 5 ms 4948 KB Output is correct
61 Correct 3 ms 4948 KB Output is correct
62 Correct 3 ms 4948 KB Output is correct
63 Correct 3 ms 4948 KB Output is correct
64 Correct 3 ms 5028 KB Output is correct
65 Correct 4 ms 5024 KB Output is correct
66 Correct 6 ms 4948 KB Output is correct
67 Correct 3 ms 5076 KB Output is correct
68 Correct 3 ms 5076 KB Output is correct
69 Correct 4 ms 5160 KB Output is correct
70 Correct 4 ms 5204 KB Output is correct
71 Correct 3 ms 5032 KB Output is correct
72 Correct 5 ms 5076 KB Output is correct
73 Correct 3 ms 5076 KB Output is correct
74 Correct 3 ms 5076 KB Output is correct
75 Correct 5 ms 5076 KB Output is correct
76 Correct 4 ms 5024 KB Output is correct
77 Correct 4 ms 5076 KB Output is correct
78 Correct 4 ms 5036 KB Output is correct
79 Correct 3 ms 5044 KB Output is correct
80 Correct 3 ms 5076 KB Output is correct
81 Correct 3 ms 5076 KB Output is correct
82 Correct 3 ms 5076 KB Output is correct
83 Correct 3 ms 5076 KB Output is correct
84 Correct 6 ms 5148 KB Output is correct
85 Correct 4 ms 5076 KB Output is correct
86 Correct 5 ms 5076 KB Output is correct
87 Correct 4 ms 5052 KB Output is correct
88 Correct 4 ms 5076 KB Output is correct
89 Correct 3 ms 5076 KB Output is correct
90 Correct 3 ms 5032 KB Output is correct
91 Correct 3 ms 5076 KB Output is correct
92 Correct 3 ms 5076 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4908 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 5020 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 3 ms 5024 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4984 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5020 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 4 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 5036 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 4 ms 5036 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 5 ms 5024 KB Output is correct
29 Correct 4 ms 5012 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 4 ms 4948 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 3 ms 5024 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5024 KB Output is correct
36 Correct 5 ms 5032 KB Output is correct
37 Correct 4 ms 4948 KB Output is correct
38 Correct 4 ms 5024 KB Output is correct
39 Correct 4 ms 5056 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 4 ms 5020 KB Output is correct
42 Correct 4 ms 5028 KB Output is correct
43 Correct 5 ms 4992 KB Output is correct
44 Correct 5 ms 5020 KB Output is correct
45 Correct 5 ms 4948 KB Output is correct
46 Correct 4 ms 5028 KB Output is correct
47 Correct 3 ms 4948 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5028 KB Output is correct
50 Correct 4 ms 5024 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 4 ms 5024 KB Output is correct
53 Correct 3 ms 4948 KB Output is correct
54 Correct 3 ms 4948 KB Output is correct
55 Correct 3 ms 4948 KB Output is correct
56 Correct 4 ms 5016 KB Output is correct
57 Correct 3 ms 4948 KB Output is correct
58 Correct 4 ms 4948 KB Output is correct
59 Correct 3 ms 4948 KB Output is correct
60 Correct 5 ms 4948 KB Output is correct
61 Correct 3 ms 4948 KB Output is correct
62 Correct 3 ms 4948 KB Output is correct
63 Correct 3 ms 4948 KB Output is correct
64 Correct 3 ms 5028 KB Output is correct
65 Correct 4 ms 5024 KB Output is correct
66 Correct 75 ms 22768 KB Output is correct
67 Correct 80 ms 22856 KB Output is correct
68 Runtime error 69 ms 33672 KB Execution killed with signal 11
69 Halted 0 ms 0 KB -