oj.uz

Submission #408568

# Submission time Handle Problem Language Result Execution time Memory
408568 2021-05-19T08:21:49 Z talant117408 Duathlon (APIO18_duathlon) C++17
49 / 100
 1000 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 N = 1e5+7;
vector <int> graph[N], comps_graph[N], stacc;
int timer, fup[N], tin[N], used[N];
ll ans, subtree[N];
int n, m, compsn = 1, in_n;

void find_artpoints(int v, int p = -1) {
    used[v] = 1;
    stacc.pb(v);
    in_n++;
    tin[v] = fup[v] = ++timer;
    for (auto to : graph[v]) {
        if (to == p) {
            continue;
        }
        if (used[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]) {
        if (to == p) {
            continue;
        }
        dfs2(to, v);
        subtree[v] += subtree[to];
        if (v > n) {
            ans -= sz(comps_graph[v])*subtree[to]*(subtree[to]-1);
        }
    }
    if (v > n) {
        ans -= sz(comps_graph[v])*(in_n-subtree[v])*(in_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 (!used[i]) {
            in_n = 0;
            find_artpoints(i);
            ans += in_n*(in_n-1)*(in_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 4940 KB Output is correct
4 Correct 4 ms 5016 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 5020 KB Output is correct
10 Correct 4 ms 5000 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 4 ms 5016 KB Output is correct
13 Correct 5 ms 4944 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 5 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 4 ms 4940 KB Output is correct
23 Correct 4 ms 4940 KB Output is correct
24 Correct 4 ms 4940 KB Output is correct
25 Correct 5 ms 4916 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 5 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 5 ms 5016 KB Output is correct
30 Correct 5 ms 4940 KB Output is correct
31 Correct 5 ms 5016 KB Output is correct
32 Correct 5 ms 5016 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 4 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 4940 KB Output is correct
4 Correct 4 ms 5016 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 5020 KB Output is correct
10 Correct 4 ms 5000 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 4 ms 5016 KB Output is correct
13 Correct 5 ms 4944 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 5 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 4 ms 4940 KB Output is correct
23 Correct 4 ms 4940 KB Output is correct
24 Correct 4 ms 4940 KB Output is correct
25 Correct 5 ms 4916 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 5 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 5 ms 5016 KB Output is correct
30 Correct 5 ms 4940 KB Output is correct
31 Correct 5 ms 5016 KB Output is correct
32 Correct 5 ms 5016 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 4 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct
36 Correct 4 ms 4980 KB Output is correct
37 Correct 7 ms 4940 KB Output is correct
38 Correct 5 ms 5016 KB Output is correct
39 Correct 4 ms 5020 KB Output is correct
40 Correct 4 ms 4940 KB Output is correct
41 Correct 4 ms 4940 KB Output is correct
42 Correct 4 ms 4992 KB Output is correct
43 Correct 5 ms 4940 KB Output is correct
44 Correct 4 ms 4940 KB Output is correct
45 Correct 4 ms 4940 KB Output is correct
46 Correct 5 ms 5024 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 4 ms 4940 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 4 ms 5024 KB Output is correct
52 Correct 4 ms 4940 KB Output is correct
53 Correct 4 ms 4940 KB Output is correct
54 Correct 4 ms 4940 KB Output is correct
55 Correct 4 ms 4924 KB Output is correct
56 Correct 5 ms 5024 KB Output is correct
57 Correct 4 ms 4940 KB Output is correct
58 Correct 4 ms 4940 KB Output is correct
59 Correct 5 ms 4940 KB Output is correct
60 Correct 5 ms 4940 KB Output is correct
61 Correct 5 ms 5020 KB Output is correct
62 Correct 4 ms 4940 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 4 ms 4988 KB Output is correct
65 Correct 5 ms 4940 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 74 ms 20364 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 4 ms 5068 KB Output is correct
2 Correct 5 ms 5068 KB Output is correct
3 Correct 4 ms 5080 KB Output is correct
4 Correct 4 ms 5196 KB Output is correct
5 Correct 4 ms 5196 KB Output is correct
6 Correct 4 ms 5160 KB Output is correct
7 Correct 4 ms 5196 KB Output is correct
8 Correct 4 ms 5196 KB Output is correct
9 Correct 4 ms 5068 KB Output is correct
10 Correct 4 ms 5068 KB Output is correct
11 Correct 4 ms 5068 KB Output is correct
12 Correct 4 ms 5152 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 4 ms 5068 KB Output is correct
17 Correct 4 ms 5024 KB Output is correct
18 Correct 4 ms 5068 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 929 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 4 ms 5068 KB Output is correct
2 Correct 4 ms 5152 KB Output is correct
3 Correct 4 ms 5128 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 5024 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 5068 KB Output is correct
9 Correct 6 ms 5028 KB Output is correct
10 Correct 5 ms 5068 KB Output is correct
11 Correct 4 ms 5068 KB Output is correct
12 Correct 5 ms 5196 KB Output is correct
13 Correct 5 ms 5156 KB Output is correct
14 Correct 4 ms 5196 KB Output is correct
15 Correct 4 ms 5068 KB Output is correct
16 Correct 6 ms 5068 KB Output is correct
17 Correct 5 ms 5032 KB Output is correct
18 Correct 5 ms 5068 KB Output is correct
19 Correct 6 ms 5068 KB Output is correct
20 Correct 5 ms 5088 KB Output is correct
21 Correct 5 ms 5024 KB Output is correct
22 Correct 5 ms 5068 KB Output is correct
23 Correct 5 ms 5056 KB Output is correct
24 Correct 5 ms 5028 KB Output is correct
25 Correct 4 ms 5068 KB Output is correct
26 Correct 4 ms 5068 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 Execution timed out 1010 ms 1048580 KB Time limit exceeded
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 4940 KB Output is correct
4 Correct 4 ms 5016 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 5020 KB Output is correct
10 Correct 4 ms 5000 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 4 ms 5016 KB Output is correct
13 Correct 5 ms 4944 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 5 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 4 ms 4940 KB Output is correct
23 Correct 4 ms 4940 KB Output is correct
24 Correct 4 ms 4940 KB Output is correct
25 Correct 5 ms 4916 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 5 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 5 ms 5016 KB Output is correct
30 Correct 5 ms 4940 KB Output is correct
31 Correct 5 ms 5016 KB Output is correct
32 Correct 5 ms 5016 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 4 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct
36 Correct 4 ms 4980 KB Output is correct
37 Correct 7 ms 4940 KB Output is correct
38 Correct 5 ms 5016 KB Output is correct
39 Correct 4 ms 5020 KB Output is correct
40 Correct 4 ms 4940 KB Output is correct
41 Correct 4 ms 4940 KB Output is correct
42 Correct 4 ms 4992 KB Output is correct
43 Correct 5 ms 4940 KB Output is correct
44 Correct 4 ms 4940 KB Output is correct
45 Correct 4 ms 4940 KB Output is correct
46 Correct 5 ms 5024 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 4 ms 4940 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 4 ms 5024 KB Output is correct
52 Correct 4 ms 4940 KB Output is correct
53 Correct 4 ms 4940 KB Output is correct
54 Correct 4 ms 4940 KB Output is correct
55 Correct 4 ms 4924 KB Output is correct
56 Correct 5 ms 5024 KB Output is correct
57 Correct 4 ms 4940 KB Output is correct
58 Correct 4 ms 4940 KB Output is correct
59 Correct 5 ms 4940 KB Output is correct
60 Correct 5 ms 4940 KB Output is correct
61 Correct 5 ms 5020 KB Output is correct
62 Correct 4 ms 4940 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 4 ms 4988 KB Output is correct
65 Correct 5 ms 4940 KB Output is correct
66 Correct 4 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 5 ms 5160 KB Output is correct
70 Correct 5 ms 5160 KB Output is correct
71 Correct 4 ms 5028 KB Output is correct
72 Correct 4 ms 5068 KB Output is correct
73 Correct 4 ms 5068 KB Output is correct
74 Correct 5 ms 5068 KB Output is correct
75 Correct 5 ms 5068 KB Output is correct
76 Correct 5 ms 5020 KB Output is correct
77 Correct 5 ms 5024 KB Output is correct
78 Correct 6 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 5160 KB Output is correct
84 Correct 5 ms 5068 KB Output is correct
85 Correct 4 ms 5028 KB Output is correct
86 Correct 4 ms 5068 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 5068 KB Output is correct
92 Correct 4 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 4940 KB Output is correct
4 Correct 4 ms 5016 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 5020 KB Output is correct
10 Correct 4 ms 5000 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 4 ms 5016 KB Output is correct
13 Correct 5 ms 4944 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 5 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 4 ms 4940 KB Output is correct
23 Correct 4 ms 4940 KB Output is correct
24 Correct 4 ms 4940 KB Output is correct
25 Correct 5 ms 4916 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 5 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 5 ms 5016 KB Output is correct
30 Correct 5 ms 4940 KB Output is correct
31 Correct 5 ms 5016 KB Output is correct
32 Correct 5 ms 5016 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 4 ms 4940 KB Output is correct
35 Correct 4 ms 4940 KB Output is correct
36 Correct 4 ms 4980 KB Output is correct
37 Correct 7 ms 4940 KB Output is correct
38 Correct 5 ms 5016 KB Output is correct
39 Correct 4 ms 5020 KB Output is correct
40 Correct 4 ms 4940 KB Output is correct
41 Correct 4 ms 4940 KB Output is correct
42 Correct 4 ms 4992 KB Output is correct
43 Correct 5 ms 4940 KB Output is correct
44 Correct 4 ms 4940 KB Output is correct
45 Correct 4 ms 4940 KB Output is correct
46 Correct 5 ms 5024 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 4 ms 4940 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 4 ms 5024 KB Output is correct
52 Correct 4 ms 4940 KB Output is correct
53 Correct 4 ms 4940 KB Output is correct
54 Correct 4 ms 4940 KB Output is correct
55 Correct 4 ms 4924 KB Output is correct
56 Correct 5 ms 5024 KB Output is correct
57 Correct 4 ms 4940 KB Output is correct
58 Correct 4 ms 4940 KB Output is correct
59 Correct 5 ms 4940 KB Output is correct
60 Correct 5 ms 4940 KB Output is correct
61 Correct 5 ms 5020 KB Output is correct
62 Correct 4 ms 4940 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 4 ms 4988 KB Output is correct
65 Correct 5 ms 4940 KB Output is correct
66 Incorrect 74 ms 20364 KB Output isn't correct
67 Halted 0 ms 0 KB -