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Submission #371471

# Submission time Handle Problem Language Result Execution time Memory
371471 2021-02-26T16:55:03 Z Leonardo_Paes Duathlon (APIO18_duathlon) C++17
49 / 100
 91 ms 23528 KB 
#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define ar array
#define sz(a) ((int)(a).size())
#define all(a) (a).begin(),(a).end()
typedef long long ll;
typedef pair<int,int> pii;
#define f first
#define s second
const int maxn = 1e5+10;
#define MAXN 100000 + 10
vector<int> grafo[maxn], bcc[2*maxn];
int n, m, in[maxn], low[maxn], sub[maxn], t, sz, bccs = 1; // tempo de entrada e menor tempo de entrada de back-edge
stack<int> s;

void dfs(int u, int p = 0){
    in[u] = low[u] = ++t;
    s.push(u);
    ++sz;
    for(int v : grafo[u]){
        if(v == p) continue;
        if(!in[v]){
            dfs(v, u);
            low[u] = min(low[u], low[v]);
            if(low[v] >= in[u]){
                int id = n + bccs;
                bcc[u].push_back(id);
                while(bcc[id].empty() or bcc[id].back() != v){
                    bcc[id].push_back(s.top());
                    s.pop();
                }
                bccs++;
            }
        }
        else low[u] = min(low[u], in[v]);
    }
}

ll solve(int u){
    ll ans = 0, tam;
    sub[u] = (u <= n);
    tam = (int)bcc[u].size();
    for(int v : bcc[u]){
        ans += solve(v);
        sub[u] += sub[v];
        if(u > n) ans += tam * sub[v] * (sub[v] - 1);
    }
    if(u > n) ans += tam * (sz - sub[u]) * (sz - sub[u] - 1);
    return ans;
}

int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin >> n >> m;
    for(int i=1; i<=m; i++){
        int u, v;
        cin >> u >> v;
        grafo[u].push_back(v);
        grafo[v].push_back(u);
    }
    ll ans = 0;
    for(int i=1; i<=n; i++){
        if(!in[i]){
            sz = 0;
            dfs(i);
            ans += sz * (sz-1) * (sz-2); // total
            ans -= solve(i); // triplas ruins
        }
    }
    cout << ans << "\n";
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7412 KB Output is correct
2 Correct 6 ms 7532 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 4 ms 7404 KB Output is correct
6 Correct 5 ms 7404 KB Output is correct
7 Correct 5 ms 7404 KB Output is correct
8 Correct 5 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 5 ms 7404 KB Output is correct
11 Correct 5 ms 7404 KB Output is correct
12 Correct 5 ms 7404 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 5 ms 7404 KB Output is correct
19 Correct 5 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7404 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7404 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7412 KB Output is correct
2 Correct 6 ms 7532 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 4 ms 7404 KB Output is correct
6 Correct 5 ms 7404 KB Output is correct
7 Correct 5 ms 7404 KB Output is correct
8 Correct 5 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 5 ms 7404 KB Output is correct
11 Correct 5 ms 7404 KB Output is correct
12 Correct 5 ms 7404 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 5 ms 7404 KB Output is correct
19 Correct 5 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7404 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7404 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct
36 Correct 5 ms 7404 KB Output is correct
37 Correct 5 ms 7404 KB Output is correct
38 Correct 5 ms 7404 KB Output is correct
39 Correct 5 ms 7404 KB Output is correct
40 Correct 5 ms 7404 KB Output is correct
41 Correct 5 ms 7404 KB Output is correct
42 Correct 5 ms 7404 KB Output is correct
43 Correct 5 ms 7404 KB Output is correct
44 Correct 6 ms 7552 KB Output is correct
45 Correct 6 ms 7392 KB Output is correct
46 Correct 6 ms 7424 KB Output is correct
47 Correct 5 ms 7404 KB Output is correct
48 Correct 5 ms 7404 KB Output is correct
49 Correct 5 ms 7404 KB Output is correct
50 Correct 5 ms 7404 KB Output is correct
51 Correct 5 ms 7404 KB Output is correct
52 Correct 5 ms 7404 KB Output is correct
53 Correct 5 ms 7404 KB Output is correct
54 Correct 5 ms 7404 KB Output is correct
55 Correct 5 ms 7404 KB Output is correct
56 Correct 5 ms 7404 KB Output is correct
57 Correct 5 ms 7404 KB Output is correct
58 Correct 5 ms 7404 KB Output is correct
59 Correct 5 ms 7404 KB Output is correct
60 Correct 5 ms 7404 KB Output is correct
61 Correct 5 ms 7404 KB Output is correct
62 Correct 5 ms 7404 KB Output is correct
63 Correct 5 ms 7404 KB Output is correct
64 Correct 5 ms 7404 KB Output is correct
65 Correct 5 ms 7404 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 72 ms 23528 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7532 KB Output is correct
2 Correct 5 ms 7532 KB Output is correct
3 Correct 5 ms 7532 KB Output is correct
4 Correct 6 ms 7660 KB Output is correct
5 Correct 6 ms 7532 KB Output is correct
6 Correct 7 ms 7532 KB Output is correct
7 Correct 6 ms 7532 KB Output is correct
8 Correct 6 ms 7532 KB Output is correct
9 Correct 5 ms 7532 KB Output is correct
10 Correct 5 ms 7532 KB Output is correct
11 Correct 6 ms 7532 KB Output is correct
12 Correct 5 ms 7532 KB Output is correct
13 Correct 5 ms 7532 KB Output is correct
14 Correct 6 ms 7532 KB Output is correct
15 Correct 6 ms 7532 KB Output is correct
16 Correct 5 ms 7532 KB Output is correct
17 Correct 5 ms 7532 KB Output is correct
18 Correct 6 ms 7680 KB Output is correct
19 Correct 7 ms 7532 KB Output is correct
20 Correct 7 ms 7532 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 84 ms 16492 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7532 KB Output is correct
2 Correct 7 ms 7660 KB Output is correct
3 Correct 5 ms 7532 KB Output is correct
4 Correct 5 ms 7532 KB Output is correct
5 Correct 5 ms 7404 KB Output is correct
6 Correct 5 ms 7404 KB Output is correct
7 Correct 5 ms 7404 KB Output is correct
8 Correct 5 ms 7404 KB Output is correct
9 Correct 6 ms 7404 KB Output is correct
10 Correct 5 ms 7404 KB Output is correct
11 Correct 5 ms 7532 KB Output is correct
12 Correct 5 ms 7532 KB Output is correct
13 Correct 5 ms 7532 KB Output is correct
14 Correct 5 ms 7532 KB Output is correct
15 Correct 5 ms 7532 KB Output is correct
16 Correct 5 ms 7532 KB Output is correct
17 Correct 6 ms 7532 KB Output is correct
18 Correct 6 ms 7532 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct
20 Correct 6 ms 7404 KB Output is correct
21 Correct 5 ms 7532 KB Output is correct
22 Correct 5 ms 7532 KB Output is correct
23 Correct 6 ms 7532 KB Output is correct
24 Correct 6 ms 7552 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7404 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 91 ms 16492 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7412 KB Output is correct
2 Correct 6 ms 7532 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 4 ms 7404 KB Output is correct
6 Correct 5 ms 7404 KB Output is correct
7 Correct 5 ms 7404 KB Output is correct
8 Correct 5 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 5 ms 7404 KB Output is correct
11 Correct 5 ms 7404 KB Output is correct
12 Correct 5 ms 7404 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 5 ms 7404 KB Output is correct
19 Correct 5 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7404 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7404 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct
36 Correct 5 ms 7404 KB Output is correct
37 Correct 5 ms 7404 KB Output is correct
38 Correct 5 ms 7404 KB Output is correct
39 Correct 5 ms 7404 KB Output is correct
40 Correct 5 ms 7404 KB Output is correct
41 Correct 5 ms 7404 KB Output is correct
42 Correct 5 ms 7404 KB Output is correct
43 Correct 5 ms 7404 KB Output is correct
44 Correct 6 ms 7552 KB Output is correct
45 Correct 6 ms 7392 KB Output is correct
46 Correct 6 ms 7424 KB Output is correct
47 Correct 5 ms 7404 KB Output is correct
48 Correct 5 ms 7404 KB Output is correct
49 Correct 5 ms 7404 KB Output is correct
50 Correct 5 ms 7404 KB Output is correct
51 Correct 5 ms 7404 KB Output is correct
52 Correct 5 ms 7404 KB Output is correct
53 Correct 5 ms 7404 KB Output is correct
54 Correct 5 ms 7404 KB Output is correct
55 Correct 5 ms 7404 KB Output is correct
56 Correct 5 ms 7404 KB Output is correct
57 Correct 5 ms 7404 KB Output is correct
58 Correct 5 ms 7404 KB Output is correct
59 Correct 5 ms 7404 KB Output is correct
60 Correct 5 ms 7404 KB Output is correct
61 Correct 5 ms 7404 KB Output is correct
62 Correct 5 ms 7404 KB Output is correct
63 Correct 5 ms 7404 KB Output is correct
64 Correct 5 ms 7404 KB Output is correct
65 Correct 5 ms 7404 KB Output is correct
66 Correct 5 ms 7404 KB Output is correct
67 Correct 5 ms 7404 KB Output is correct
68 Correct 6 ms 7548 KB Output is correct
69 Correct 6 ms 7532 KB Output is correct
70 Correct 6 ms 7532 KB Output is correct
71 Correct 5 ms 7404 KB Output is correct
72 Correct 5 ms 7404 KB Output is correct
73 Correct 5 ms 7404 KB Output is correct
74 Correct 5 ms 7404 KB Output is correct
75 Correct 6 ms 7404 KB Output is correct
76 Correct 5 ms 7404 KB Output is correct
77 Correct 5 ms 7532 KB Output is correct
78 Correct 5 ms 7404 KB Output is correct
79 Correct 5 ms 7404 KB Output is correct
80 Correct 5 ms 7404 KB Output is correct
81 Correct 5 ms 7404 KB Output is correct
82 Correct 5 ms 7532 KB Output is correct
83 Correct 5 ms 7532 KB Output is correct
84 Correct 5 ms 7532 KB Output is correct
85 Correct 5 ms 7532 KB Output is correct
86 Correct 5 ms 7404 KB Output is correct
87 Correct 5 ms 7404 KB Output is correct
88 Correct 6 ms 7404 KB Output is correct
89 Correct 6 ms 7404 KB Output is correct
90 Correct 5 ms 7404 KB Output is correct
91 Correct 5 ms 7404 KB Output is correct
92 Correct 5 ms 7404 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7412 KB Output is correct
2 Correct 6 ms 7532 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 4 ms 7404 KB Output is correct
6 Correct 5 ms 7404 KB Output is correct
7 Correct 5 ms 7404 KB Output is correct
8 Correct 5 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 5 ms 7404 KB Output is correct
11 Correct 5 ms 7404 KB Output is correct
12 Correct 5 ms 7404 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 5 ms 7404 KB Output is correct
19 Correct 5 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7404 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7404 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct
36 Correct 5 ms 7404 KB Output is correct
37 Correct 5 ms 7404 KB Output is correct
38 Correct 5 ms 7404 KB Output is correct
39 Correct 5 ms 7404 KB Output is correct
40 Correct 5 ms 7404 KB Output is correct
41 Correct 5 ms 7404 KB Output is correct
42 Correct 5 ms 7404 KB Output is correct
43 Correct 5 ms 7404 KB Output is correct
44 Correct 6 ms 7552 KB Output is correct
45 Correct 6 ms 7392 KB Output is correct
46 Correct 6 ms 7424 KB Output is correct
47 Correct 5 ms 7404 KB Output is correct
48 Correct 5 ms 7404 KB Output is correct
49 Correct 5 ms 7404 KB Output is correct
50 Correct 5 ms 7404 KB Output is correct
51 Correct 5 ms 7404 KB Output is correct
52 Correct 5 ms 7404 KB Output is correct
53 Correct 5 ms 7404 KB Output is correct
54 Correct 5 ms 7404 KB Output is correct
55 Correct 5 ms 7404 KB Output is correct
56 Correct 5 ms 7404 KB Output is correct
57 Correct 5 ms 7404 KB Output is correct
58 Correct 5 ms 7404 KB Output is correct
59 Correct 5 ms 7404 KB Output is correct
60 Correct 5 ms 7404 KB Output is correct
61 Correct 5 ms 7404 KB Output is correct
62 Correct 5 ms 7404 KB Output is correct
63 Correct 5 ms 7404 KB Output is correct
64 Correct 5 ms 7404 KB Output is correct
65 Correct 5 ms 7404 KB Output is correct
66 Incorrect 72 ms 23528 KB Output isn't correct
67 Halted 0 ms 0 KB -