oj.uz

Submission #408581

# Submission time Handle Problem Language Result Execution time Memory
408581 2021-05-19T08:30:17 Z talant117408 Duathlon (APIO18_duathlon) C++17
49 / 100
 973 ms 1048580 KB 
/*
    Code written by Talant I.D.
*/
 
#include <bits/stdc++.h>
//~ #include <ext/pb_ds/assoc_container.hpp>
 
//~ using namespace __gnu_pbds;
using namespace std;
 
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
//~ typedef tree <int, null_type, less <int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
 
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define eps (double)1e-9
#define PI 2*acos(0.0)
//~ #define endl "\n"
#define sz(v) int((v).size())
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define OK cout << "OK" << endl;
 
const int mod = 1e9+7;
 
ll mode(ll a) {
    while (a < 0) {
        a += mod;
    }
    return a % mod;
}
 
ll subt(ll a, ll b) {
    return mode(mode(a)-mode(b));
}
 
ll add(ll a, ll b) {
    return mode(mode(a)+mode(b));
}
 
ll mult(ll a, ll b) {
    return mode(mode(a)*mode(b));
}
 
ll binpow(ll a, ll b) {
    ll res = 1;
    while (b) {
        if (b&1) res = mult(res, a);
        a = mult(a, a);
        b >>= 1;
    }
    return res;
}

const int MAXN = 1e5+7;
vector <int> graph[MAXN], comps_graph[MAXN], stacc;
int timer, fup[MAXN], tin[MAXN], compsn = 1;
ll ans, subtree[MAXN], N;
ll n, m;

void find_artpoints(int v, int p = 0) {
    tin[v] = fup[v] = ++timer;
    stacc.pb(v);
    N++;
    for (auto to : graph[v]) {
        if (to == p) {
            continue;
        }
        if (tin[to]) {
            fup[v] = min(fup[v], tin[to]);
        }
        else {
            find_artpoints(to, v);
            fup[v] = min(fup[v], fup[to]);
            if (fup[to] >= tin[v]) {
                comps_graph[v].pb(n + compsn);
                while (!sz(comps_graph[n + compsn]) || comps_graph[n + compsn].back() != to) {
                    comps_graph[n + compsn].pb(stacc.back());
                    stacc.pop_back();
                }
                compsn++;
            }
        }
    }
}

void dfs2(int v, int p = -1) {
    subtree[v] = (v <= n);
    for (auto to : comps_graph[v]) {
        dfs2(to, v);
        subtree[v] += subtree[to];
        if (v > n) {
            ans -= 1ll * sz(comps_graph[v]) * subtree[to] * (subtree[to] - 1);
        }
    }
    if (v > n) {
        ans -= 1ll * sz(comps_graph[v]) * (N - subtree[v]) * (N - subtree[v] - 1);
    }
}

int main() {
    do_not_disturb
    
    cin >> n >> m;
    for (int i = 0; i < m; i++) {
        int x, y;
        cin >> x >> y;
        graph[x].pb(y);
        graph[y].pb(x);
    }
    
    for (int i = 1; i <= n; i++) {
        if (!tin[i]) {
            N = 0;
            find_artpoints(i);
            ans += 1ll * N * (N - 1) * (N - 2);
            dfs2(i);
        }
    }
    
    cout << ans;
    
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 5020 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5068 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 5 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 3 ms 4980 KB Output is correct
21 Correct 3 ms 5020 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 5 ms 4940 KB Output is correct
24 Correct 9 ms 4972 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 3 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 5012 KB Output is correct
31 Correct 3 ms 4940 KB Output is correct
32 Correct 3 ms 4940 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 5020 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5068 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 5 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 3 ms 4980 KB Output is correct
21 Correct 3 ms 5020 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 5 ms 4940 KB Output is correct
24 Correct 9 ms 4972 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 3 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 5012 KB Output is correct
31 Correct 3 ms 4940 KB Output is correct
32 Correct 3 ms 4940 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct
36 Correct 4 ms 4940 KB Output is correct
37 Correct 3 ms 4940 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 4 ms 4940 KB Output is correct
40 Correct 5 ms 4940 KB Output is correct
41 Correct 3 ms 4940 KB Output is correct
42 Correct 3 ms 4940 KB Output is correct
43 Correct 5 ms 4940 KB Output is correct
44 Correct 3 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 4 ms 4940 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 5 ms 4940 KB Output is correct
49 Correct 4 ms 4940 KB Output is correct
50 Correct 4 ms 5016 KB Output is correct
51 Correct 4 ms 4940 KB Output is correct
52 Correct 5 ms 4940 KB Output is correct
53 Correct 3 ms 4940 KB Output is correct
54 Correct 4 ms 4940 KB Output is correct
55 Correct 3 ms 4940 KB Output is correct
56 Correct 3 ms 4940 KB Output is correct
57 Correct 3 ms 4940 KB Output is correct
58 Correct 3 ms 4940 KB Output is correct
59 Correct 4 ms 4940 KB Output is correct
60 Correct 3 ms 5020 KB Output is correct
61 Correct 3 ms 4964 KB Output is correct
62 Correct 4 ms 4904 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 3 ms 4940 KB Output is correct
65 Correct 4 ms 4968 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 19996 KB Output is correct
2 Correct 89 ms 19920 KB Output is correct
3 Incorrect 92 ms 14860 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5008 KB Output is correct
2 Correct 5 ms 5068 KB Output is correct
3 Correct 5 ms 5068 KB Output is correct
4 Correct 4 ms 5196 KB Output is correct
5 Correct 6 ms 5196 KB Output is correct
6 Correct 4 ms 5196 KB Output is correct
7 Correct 5 ms 5196 KB Output is correct
8 Correct 5 ms 5068 KB Output is correct
9 Correct 4 ms 5068 KB Output is correct
10 Correct 5 ms 5052 KB Output is correct
11 Correct 6 ms 5036 KB Output is correct
12 Correct 5 ms 5068 KB Output is correct
13 Correct 5 ms 5068 KB Output is correct
14 Correct 4 ms 5068 KB Output is correct
15 Correct 4 ms 5068 KB Output is correct
16 Correct 5 ms 5068 KB Output is correct
17 Correct 5 ms 5068 KB Output is correct
18 Correct 5 ms 5056 KB Output is correct
19 Correct 4 ms 5068 KB Output is correct
20 Correct 4 ms 5068 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 918 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5068 KB Output is correct
2 Correct 6 ms 5068 KB Output is correct
3 Correct 4 ms 5068 KB Output is correct
4 Correct 4 ms 5068 KB Output is correct
5 Correct 4 ms 5068 KB Output is correct
6 Correct 4 ms 5068 KB Output is correct
7 Correct 5 ms 5068 KB Output is correct
8 Correct 5 ms 5080 KB Output is correct
9 Correct 4 ms 5068 KB Output is correct
10 Correct 5 ms 5068 KB Output is correct
11 Correct 4 ms 5068 KB Output is correct
12 Correct 4 ms 5068 KB Output is correct
13 Correct 4 ms 5068 KB Output is correct
14 Correct 4 ms 5068 KB Output is correct
15 Correct 4 ms 5068 KB Output is correct
16 Correct 5 ms 5076 KB Output is correct
17 Correct 4 ms 5068 KB Output is correct
18 Correct 5 ms 5068 KB Output is correct
19 Correct 4 ms 5020 KB Output is correct
20 Correct 4 ms 5076 KB Output is correct
21 Correct 5 ms 5068 KB Output is correct
22 Correct 4 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 5 ms 5068 KB Output is correct
25 Correct 4 ms 4940 KB Output is correct
26 Correct 4 ms 5032 KB Output is correct
27 Correct 4 ms 4940 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 973 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 5020 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5068 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 5 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 3 ms 4980 KB Output is correct
21 Correct 3 ms 5020 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 5 ms 4940 KB Output is correct
24 Correct 9 ms 4972 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 3 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 5012 KB Output is correct
31 Correct 3 ms 4940 KB Output is correct
32 Correct 3 ms 4940 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct
36 Correct 4 ms 4940 KB Output is correct
37 Correct 3 ms 4940 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 4 ms 4940 KB Output is correct
40 Correct 5 ms 4940 KB Output is correct
41 Correct 3 ms 4940 KB Output is correct
42 Correct 3 ms 4940 KB Output is correct
43 Correct 5 ms 4940 KB Output is correct
44 Correct 3 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 4 ms 4940 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 5 ms 4940 KB Output is correct
49 Correct 4 ms 4940 KB Output is correct
50 Correct 4 ms 5016 KB Output is correct
51 Correct 4 ms 4940 KB Output is correct
52 Correct 5 ms 4940 KB Output is correct
53 Correct 3 ms 4940 KB Output is correct
54 Correct 4 ms 4940 KB Output is correct
55 Correct 3 ms 4940 KB Output is correct
56 Correct 3 ms 4940 KB Output is correct
57 Correct 3 ms 4940 KB Output is correct
58 Correct 3 ms 4940 KB Output is correct
59 Correct 4 ms 4940 KB Output is correct
60 Correct 3 ms 5020 KB Output is correct
61 Correct 3 ms 4964 KB Output is correct
62 Correct 4 ms 4904 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 3 ms 4940 KB Output is correct
65 Correct 4 ms 4968 KB Output is correct
66 Correct 3 ms 4940 KB Output is correct
67 Correct 4 ms 5068 KB Output is correct
68 Correct 4 ms 5068 KB Output is correct
69 Correct 4 ms 5112 KB Output is correct
70 Correct 4 ms 5068 KB Output is correct
71 Correct 4 ms 5068 KB Output is correct
72 Correct 4 ms 5068 KB Output is correct
73 Correct 4 ms 5020 KB Output is correct
74 Correct 4 ms 5068 KB Output is correct
75 Correct 4 ms 5164 KB Output is correct
76 Correct 4 ms 4940 KB Output is correct
77 Correct 5 ms 5068 KB Output is correct
78 Correct 4 ms 5068 KB Output is correct
79 Correct 5 ms 5068 KB Output is correct
80 Correct 4 ms 5068 KB Output is correct
81 Correct 4 ms 5068 KB Output is correct
82 Correct 4 ms 5068 KB Output is correct
83 Correct 4 ms 5068 KB Output is correct
84 Correct 4 ms 5068 KB Output is correct
85 Correct 5 ms 5068 KB Output is correct
86 Correct 4 ms 5084 KB Output is correct
87 Correct 4 ms 5068 KB Output is correct
88 Correct 4 ms 5068 KB Output is correct
89 Correct 4 ms 5068 KB Output is correct
90 Correct 5 ms 5068 KB Output is correct
91 Correct 4 ms 5048 KB Output is correct
92 Correct 5 ms 5068 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 5020 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5068 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 5 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 3 ms 4980 KB Output is correct
21 Correct 3 ms 5020 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 5 ms 4940 KB Output is correct
24 Correct 9 ms 4972 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 3 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 5012 KB Output is correct
31 Correct 3 ms 4940 KB Output is correct
32 Correct 3 ms 4940 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct
36 Correct 4 ms 4940 KB Output is correct
37 Correct 3 ms 4940 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 4 ms 4940 KB Output is correct
40 Correct 5 ms 4940 KB Output is correct
41 Correct 3 ms 4940 KB Output is correct
42 Correct 3 ms 4940 KB Output is correct
43 Correct 5 ms 4940 KB Output is correct
44 Correct 3 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 4 ms 4940 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 5 ms 4940 KB Output is correct
49 Correct 4 ms 4940 KB Output is correct
50 Correct 4 ms 5016 KB Output is correct
51 Correct 4 ms 4940 KB Output is correct
52 Correct 5 ms 4940 KB Output is correct
53 Correct 3 ms 4940 KB Output is correct
54 Correct 4 ms 4940 KB Output is correct
55 Correct 3 ms 4940 KB Output is correct
56 Correct 3 ms 4940 KB Output is correct
57 Correct 3 ms 4940 KB Output is correct
58 Correct 3 ms 4940 KB Output is correct
59 Correct 4 ms 4940 KB Output is correct
60 Correct 3 ms 5020 KB Output is correct
61 Correct 3 ms 4964 KB Output is correct
62 Correct 4 ms 4904 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 3 ms 4940 KB Output is correct
65 Correct 4 ms 4968 KB Output is correct
66 Correct 85 ms 19996 KB Output is correct
67 Correct 89 ms 19920 KB Output is correct
68 Incorrect 92 ms 14860 KB Output isn't correct
69 Halted 0 ms 0 KB -