oj.uz

Submission #928460

# Submission time Handle Problem Language Result Execution time Memory
928460 2024-02-16T12:24:42 Z TAhmed33 Duathlon (APIO18_duathlon) C++
49 / 100
 44 ms 25608 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 25;
vector <int> adj[MAXN];
int n, m;
int dep[MAXN], low[MAXN];
vector <int> adj2[MAXN];
int cnt, sze2;
long long ans;
vector <int> cur;
void dfs (int pos, int par, int tt) {
	dep[pos] = low[pos] = tt; cur.push_back(pos);
	sze2++;
	for (auto j : adj[pos]) {
		if (j == par) continue;
		if (dep[j] != -1) {
			low[pos] = min(low[pos], dep[j]);
		} else {
			dfs(j, pos, tt + 1);
			low[pos] = min(low[pos], low[j]);
			if (low[j] >= dep[pos]) {
				++cnt;
				adj2[pos].push_back(n + cnt);
				while (adj2[n + cnt].empty() || adj2[n + cnt].back() != j) {
					adj2[n + cnt].push_back(cur.back());
					cur.pop_back();
				}
			}
		}
	}
}
int sze[MAXN];
void dfs2 (int pos, int par) {
	if (pos <= n) sze[pos] = 1;
	long long l = adj2[pos].size();
	for (auto j : adj2[pos]) {
		dfs2(j, pos);
		sze[pos] += sze[j];
		if (pos > n) {
			ans -= 1ll * sze[j] * (sze[j] - 1) * l;
		}
	}
	if (pos > n) {
		ans -= 1ll * (sze2 - sze[pos]) * (sze2 - sze[pos] - 1) * l;
	}
}
int main () {
	ios::sync_with_stdio(0); cin.tie(0);
	cin >> n >> m;
	for (int i = 1; i <= m; i++) {
		int a, b;
		cin >> a >> b;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	memset(dep, -1, sizeof(dep));
	for (int i = 1; i <= n; i++) {
		if (-1 == dep[i]) {
			sze2 = 0; cur.clear();
			dfs(i, -1, 0);
			ans += sze2 * (sze2 - 1) * (sze2 - 2);
			dfs2(i, -1);
		}
	}
	cout << ans << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11868 KB Output is correct
2 Correct 3 ms 11868 KB Output is correct
3 Correct 3 ms 12020 KB Output is correct
4 Correct 3 ms 11868 KB Output is correct
5 Correct 3 ms 11868 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 3 ms 11868 KB Output is correct
8 Correct 3 ms 11868 KB Output is correct
9 Correct 3 ms 11868 KB Output is correct
10 Correct 3 ms 11952 KB Output is correct
11 Correct 4 ms 11984 KB Output is correct
12 Correct 3 ms 11868 KB Output is correct
13 Correct 3 ms 12024 KB Output is correct
14 Correct 2 ms 11868 KB Output is correct
15 Correct 4 ms 11868 KB Output is correct
16 Correct 3 ms 11868 KB Output is correct
17 Correct 3 ms 11868 KB Output is correct
18 Correct 3 ms 11868 KB Output is correct
19 Correct 3 ms 11864 KB Output is correct
20 Correct 3 ms 11868 KB Output is correct
21 Correct 3 ms 11864 KB Output is correct
22 Correct 3 ms 11868 KB Output is correct
23 Correct 3 ms 11864 KB Output is correct
24 Correct 3 ms 11868 KB Output is correct
25 Correct 3 ms 11868 KB Output is correct
26 Correct 3 ms 11868 KB Output is correct
27 Correct 3 ms 11868 KB Output is correct
28 Correct 4 ms 11956 KB Output is correct
29 Correct 4 ms 11864 KB Output is correct
30 Correct 3 ms 11868 KB Output is correct
31 Correct 3 ms 11868 KB Output is correct
32 Correct 3 ms 11864 KB Output is correct
33 Correct 3 ms 11868 KB Output is correct
34 Correct 3 ms 11868 KB Output is correct
35 Correct 3 ms 12028 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11868 KB Output is correct
2 Correct 3 ms 11868 KB Output is correct
3 Correct 3 ms 12020 KB Output is correct
4 Correct 3 ms 11868 KB Output is correct
5 Correct 3 ms 11868 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 3 ms 11868 KB Output is correct
8 Correct 3 ms 11868 KB Output is correct
9 Correct 3 ms 11868 KB Output is correct
10 Correct 3 ms 11952 KB Output is correct
11 Correct 4 ms 11984 KB Output is correct
12 Correct 3 ms 11868 KB Output is correct
13 Correct 3 ms 12024 KB Output is correct
14 Correct 2 ms 11868 KB Output is correct
15 Correct 4 ms 11868 KB Output is correct
16 Correct 3 ms 11868 KB Output is correct
17 Correct 3 ms 11868 KB Output is correct
18 Correct 3 ms 11868 KB Output is correct
19 Correct 3 ms 11864 KB Output is correct
20 Correct 3 ms 11868 KB Output is correct
21 Correct 3 ms 11864 KB Output is correct
22 Correct 3 ms 11868 KB Output is correct
23 Correct 3 ms 11864 KB Output is correct
24 Correct 3 ms 11868 KB Output is correct
25 Correct 3 ms 11868 KB Output is correct
26 Correct 3 ms 11868 KB Output is correct
27 Correct 3 ms 11868 KB Output is correct
28 Correct 4 ms 11956 KB Output is correct
29 Correct 4 ms 11864 KB Output is correct
30 Correct 3 ms 11868 KB Output is correct
31 Correct 3 ms 11868 KB Output is correct
32 Correct 3 ms 11864 KB Output is correct
33 Correct 3 ms 11868 KB Output is correct
34 Correct 3 ms 11868 KB Output is correct
35 Correct 3 ms 12028 KB Output is correct
36 Correct 3 ms 11868 KB Output is correct
37 Correct 3 ms 11864 KB Output is correct
38 Correct 3 ms 11864 KB Output is correct
39 Correct 3 ms 11868 KB Output is correct
40 Correct 3 ms 11868 KB Output is correct
41 Correct 3 ms 11868 KB Output is correct
42 Correct 3 ms 11868 KB Output is correct
43 Correct 4 ms 11868 KB Output is correct
44 Correct 3 ms 12020 KB Output is correct
45 Correct 3 ms 11868 KB Output is correct
46 Correct 3 ms 11868 KB Output is correct
47 Correct 3 ms 11868 KB Output is correct
48 Correct 3 ms 11868 KB Output is correct
49 Correct 3 ms 11868 KB Output is correct
50 Correct 3 ms 12020 KB Output is correct
51 Correct 3 ms 12020 KB Output is correct
52 Correct 3 ms 11868 KB Output is correct
53 Correct 3 ms 11868 KB Output is correct
54 Correct 4 ms 11868 KB Output is correct
55 Correct 3 ms 11868 KB Output is correct
56 Correct 3 ms 11868 KB Output is correct
57 Correct 3 ms 11868 KB Output is correct
58 Correct 4 ms 11868 KB Output is correct
59 Correct 3 ms 11868 KB Output is correct
60 Correct 3 ms 11868 KB Output is correct
61 Correct 3 ms 11868 KB Output is correct
62 Correct 3 ms 11868 KB Output is correct
63 Correct 4 ms 11868 KB Output is correct
64 Correct 3 ms 11868 KB Output is correct
65 Correct 3 ms 11992 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 39 ms 25608 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 3 ms 11868 KB Output is correct
2 Correct 4 ms 11868 KB Output is correct
3 Correct 3 ms 11868 KB Output is correct
4 Correct 3 ms 12124 KB Output is correct
5 Correct 3 ms 12124 KB Output is correct
6 Correct 4 ms 12124 KB Output is correct
7 Correct 3 ms 12124 KB Output is correct
8 Correct 3 ms 12124 KB Output is correct
9 Correct 4 ms 12128 KB Output is correct
10 Correct 3 ms 11864 KB Output is correct
11 Correct 3 ms 11868 KB Output is correct
12 Correct 3 ms 11868 KB Output is correct
13 Correct 4 ms 12096 KB Output is correct
14 Correct 3 ms 12064 KB Output is correct
15 Correct 3 ms 11872 KB Output is correct
16 Correct 4 ms 11996 KB Output is correct
17 Correct 3 ms 11868 KB Output is correct
18 Correct 3 ms 11876 KB Output is correct
19 Correct 3 ms 11868 KB Output is correct
20 Correct 3 ms 11864 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 43 ms 20048 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 3 ms 11868 KB Output is correct
2 Correct 3 ms 11980 KB Output is correct
3 Correct 3 ms 11868 KB Output is correct
4 Correct 3 ms 11932 KB Output is correct
5 Correct 3 ms 11868 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 3 ms 11864 KB Output is correct
8 Correct 3 ms 11864 KB Output is correct
9 Correct 3 ms 11868 KB Output is correct
10 Correct 3 ms 11868 KB Output is correct
11 Correct 3 ms 11864 KB Output is correct
12 Correct 3 ms 12124 KB Output is correct
13 Correct 3 ms 12124 KB Output is correct
14 Correct 3 ms 12124 KB Output is correct
15 Correct 4 ms 12124 KB Output is correct
16 Correct 3 ms 11960 KB Output is correct
17 Correct 3 ms 11868 KB Output is correct
18 Correct 4 ms 11868 KB Output is correct
19 Correct 3 ms 11868 KB Output is correct
20 Correct 4 ms 11868 KB Output is correct
21 Correct 3 ms 11868 KB Output is correct
22 Correct 3 ms 12036 KB Output is correct
23 Correct 3 ms 11868 KB Output is correct
24 Correct 4 ms 11868 KB Output is correct
25 Correct 3 ms 11868 KB Output is correct
26 Correct 3 ms 11868 KB Output is correct
27 Correct 3 ms 11952 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 44 ms 20052 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 3 ms 11868 KB Output is correct
2 Correct 3 ms 11868 KB Output is correct
3 Correct 3 ms 12020 KB Output is correct
4 Correct 3 ms 11868 KB Output is correct
5 Correct 3 ms 11868 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 3 ms 11868 KB Output is correct
8 Correct 3 ms 11868 KB Output is correct
9 Correct 3 ms 11868 KB Output is correct
10 Correct 3 ms 11952 KB Output is correct
11 Correct 4 ms 11984 KB Output is correct
12 Correct 3 ms 11868 KB Output is correct
13 Correct 3 ms 12024 KB Output is correct
14 Correct 2 ms 11868 KB Output is correct
15 Correct 4 ms 11868 KB Output is correct
16 Correct 3 ms 11868 KB Output is correct
17 Correct 3 ms 11868 KB Output is correct
18 Correct 3 ms 11868 KB Output is correct
19 Correct 3 ms 11864 KB Output is correct
20 Correct 3 ms 11868 KB Output is correct
21 Correct 3 ms 11864 KB Output is correct
22 Correct 3 ms 11868 KB Output is correct
23 Correct 3 ms 11864 KB Output is correct
24 Correct 3 ms 11868 KB Output is correct
25 Correct 3 ms 11868 KB Output is correct
26 Correct 3 ms 11868 KB Output is correct
27 Correct 3 ms 11868 KB Output is correct
28 Correct 4 ms 11956 KB Output is correct
29 Correct 4 ms 11864 KB Output is correct
30 Correct 3 ms 11868 KB Output is correct
31 Correct 3 ms 11868 KB Output is correct
32 Correct 3 ms 11864 KB Output is correct
33 Correct 3 ms 11868 KB Output is correct
34 Correct 3 ms 11868 KB Output is correct
35 Correct 3 ms 12028 KB Output is correct
36 Correct 3 ms 11868 KB Output is correct
37 Correct 3 ms 11864 KB Output is correct
38 Correct 3 ms 11864 KB Output is correct
39 Correct 3 ms 11868 KB Output is correct
40 Correct 3 ms 11868 KB Output is correct
41 Correct 3 ms 11868 KB Output is correct
42 Correct 3 ms 11868 KB Output is correct
43 Correct 4 ms 11868 KB Output is correct
44 Correct 3 ms 12020 KB Output is correct
45 Correct 3 ms 11868 KB Output is correct
46 Correct 3 ms 11868 KB Output is correct
47 Correct 3 ms 11868 KB Output is correct
48 Correct 3 ms 11868 KB Output is correct
49 Correct 3 ms 11868 KB Output is correct
50 Correct 3 ms 12020 KB Output is correct
51 Correct 3 ms 12020 KB Output is correct
52 Correct 3 ms 11868 KB Output is correct
53 Correct 3 ms 11868 KB Output is correct
54 Correct 4 ms 11868 KB Output is correct
55 Correct 3 ms 11868 KB Output is correct
56 Correct 3 ms 11868 KB Output is correct
57 Correct 3 ms 11868 KB Output is correct
58 Correct 4 ms 11868 KB Output is correct
59 Correct 3 ms 11868 KB Output is correct
60 Correct 3 ms 11868 KB Output is correct
61 Correct 3 ms 11868 KB Output is correct
62 Correct 3 ms 11868 KB Output is correct
63 Correct 4 ms 11868 KB Output is correct
64 Correct 3 ms 11868 KB Output is correct
65 Correct 3 ms 11992 KB Output is correct
66 Correct 3 ms 11864 KB Output is correct
67 Correct 3 ms 11868 KB Output is correct
68 Correct 3 ms 11868 KB Output is correct
69 Correct 4 ms 11952 KB Output is correct
70 Correct 4 ms 12036 KB Output is correct
71 Correct 3 ms 11868 KB Output is correct
72 Correct 4 ms 12036 KB Output is correct
73 Correct 3 ms 11864 KB Output is correct
74 Correct 3 ms 11960 KB Output is correct
75 Correct 3 ms 11868 KB Output is correct
76 Correct 3 ms 12020 KB Output is correct
77 Correct 3 ms 11868 KB Output is correct
78 Correct 3 ms 11868 KB Output is correct
79 Correct 3 ms 11868 KB Output is correct
80 Correct 3 ms 11868 KB Output is correct
81 Correct 3 ms 11868 KB Output is correct
82 Correct 3 ms 12124 KB Output is correct
83 Correct 3 ms 11988 KB Output is correct
84 Correct 3 ms 11868 KB Output is correct
85 Correct 3 ms 11868 KB Output is correct
86 Correct 3 ms 11864 KB Output is correct
87 Correct 3 ms 11868 KB Output is correct
88 Correct 4 ms 11868 KB Output is correct
89 Correct 3 ms 11868 KB Output is correct
90 Correct 3 ms 11864 KB Output is correct
91 Correct 4 ms 12124 KB Output is correct
92 Correct 3 ms 11868 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11868 KB Output is correct
2 Correct 3 ms 11868 KB Output is correct
3 Correct 3 ms 12020 KB Output is correct
4 Correct 3 ms 11868 KB Output is correct
5 Correct 3 ms 11868 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 3 ms 11868 KB Output is correct
8 Correct 3 ms 11868 KB Output is correct
9 Correct 3 ms 11868 KB Output is correct
10 Correct 3 ms 11952 KB Output is correct
11 Correct 4 ms 11984 KB Output is correct
12 Correct 3 ms 11868 KB Output is correct
13 Correct 3 ms 12024 KB Output is correct
14 Correct 2 ms 11868 KB Output is correct
15 Correct 4 ms 11868 KB Output is correct
16 Correct 3 ms 11868 KB Output is correct
17 Correct 3 ms 11868 KB Output is correct
18 Correct 3 ms 11868 KB Output is correct
19 Correct 3 ms 11864 KB Output is correct
20 Correct 3 ms 11868 KB Output is correct
21 Correct 3 ms 11864 KB Output is correct
22 Correct 3 ms 11868 KB Output is correct
23 Correct 3 ms 11864 KB Output is correct
24 Correct 3 ms 11868 KB Output is correct
25 Correct 3 ms 11868 KB Output is correct
26 Correct 3 ms 11868 KB Output is correct
27 Correct 3 ms 11868 KB Output is correct
28 Correct 4 ms 11956 KB Output is correct
29 Correct 4 ms 11864 KB Output is correct
30 Correct 3 ms 11868 KB Output is correct
31 Correct 3 ms 11868 KB Output is correct
32 Correct 3 ms 11864 KB Output is correct
33 Correct 3 ms 11868 KB Output is correct
34 Correct 3 ms 11868 KB Output is correct
35 Correct 3 ms 12028 KB Output is correct
36 Correct 3 ms 11868 KB Output is correct
37 Correct 3 ms 11864 KB Output is correct
38 Correct 3 ms 11864 KB Output is correct
39 Correct 3 ms 11868 KB Output is correct
40 Correct 3 ms 11868 KB Output is correct
41 Correct 3 ms 11868 KB Output is correct
42 Correct 3 ms 11868 KB Output is correct
43 Correct 4 ms 11868 KB Output is correct
44 Correct 3 ms 12020 KB Output is correct
45 Correct 3 ms 11868 KB Output is correct
46 Correct 3 ms 11868 KB Output is correct
47 Correct 3 ms 11868 KB Output is correct
48 Correct 3 ms 11868 KB Output is correct
49 Correct 3 ms 11868 KB Output is correct
50 Correct 3 ms 12020 KB Output is correct
51 Correct 3 ms 12020 KB Output is correct
52 Correct 3 ms 11868 KB Output is correct
53 Correct 3 ms 11868 KB Output is correct
54 Correct 4 ms 11868 KB Output is correct
55 Correct 3 ms 11868 KB Output is correct
56 Correct 3 ms 11868 KB Output is correct
57 Correct 3 ms 11868 KB Output is correct
58 Correct 4 ms 11868 KB Output is correct
59 Correct 3 ms 11868 KB Output is correct
60 Correct 3 ms 11868 KB Output is correct
61 Correct 3 ms 11868 KB Output is correct
62 Correct 3 ms 11868 KB Output is correct
63 Correct 4 ms 11868 KB Output is correct
64 Correct 3 ms 11868 KB Output is correct
65 Correct 3 ms 11992 KB Output is correct
66 Incorrect 39 ms 25608 KB Output isn't correct
67 Halted 0 ms 0 KB -