oj.uz

Submission #727643

# Submission time Handle Problem Language Result Execution time Memory
727643 2023-04-21T04:46:32 Z SanguineChameleon Duathlon (APIO18_duathlon) C++17
47 / 100
 57 ms 15132 KB 
#include <bits/stdc++.h>
using namespace std;

void just_do_it();

int main() {
	#ifdef KAMIRULEZ
		freopen("kamirulez.inp", "r", stdin);
		freopen("kamirulez.out", "w", stdout);
	#endif
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	just_do_it();
	return 0;
}

const int maxn = 1e5 + 20;
vector<int> adj[maxn];
vector<int> comp;
bool can[55][55][55];
bool bad[maxn];
bool flag[maxn];
int depth[maxn];
int sz[maxn];
int node_cnt = 0;
int edge_cnt = 0;
int n, m;

void dfs(int x, int a, int b) {
	can[x][a][b] = true;
	for (auto c: adj[b]) {
		if (c != x && !can[x][a][c]) {
			dfs(x, a, c);
		}
	}
}

void dfs(int u, int par) {
	comp.push_back(u);
	flag[u] = true;
	node_cnt++;
	edge_cnt += adj[u].size();
	sz[u] = 1;
	for (auto v: adj[u]) {
		if (v == par) {
			continue;
		}
		if (!flag[v]) {
			depth[v] = depth[u] + 1;
			dfs(v, u);
			sz[u] += sz[v];
		}
	}
}

void sub1() {
	for (int x = 1; x <= n; x++) {
		for (int a = 1; a <= n; a++) {
			if (a != x) {
				dfs(x, a, a);
			}
		}
		bad[x] = false;
	}
	int res = 0;
	for (int a = 1; a <= n; a++) {
		for (int b = 1; b <= n; b++) {
			if (b == a) {
				continue;
			}
			for (int c = 1; c <= n; c++) {
				if (c == a || c == b) {
					continue;
				}
				bool ok = true;
				for (int x = 1; x <= n; x++) {
					if (x == b) {
						continue;
					}
					if (!can[x][a][b] && !can[x][b][c]) {
						ok = false;
						break;
					}
				}
				if (ok) {
					res++;
				}
			}
		}
	}
	cout << res;
}

long long solve(int root) {
	comp.clear();
	node_cnt = 0;
	edge_cnt = 0;
	depth[root] = 0;
	dfs(root, -1);
	edge_cnt /= 2;
	if (node_cnt == edge_cnt) {
		return 1LL * node_cnt * (node_cnt - 1) * (node_cnt - 2);
	}
	long long res = 0;
	for (auto u: comp) {
		res += 1LL * sz[u] * (node_cnt - sz[u]) * 2;
	}
	res -= 1LL * node_cnt * (node_cnt - 1);
	return res;
}

void sub8() {


}

void just_do_it() {
	cin >> n >> m;
	for (int i = 0; i < m; i++) {
		int u, v;
		cin >> u >> v;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}
	if (n <= 50) {
		sub1();
		return;
	}
	if (n <= 2000 && false) {
		sub8();
		return;
	}
	long long res = 0;
	for (int i = 1; i <= n; i++) {
		if (!flag[i]) {
			res += solve(i);
		}
	}
	cout << res;
	return;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2672 KB Output is correct
4 Correct 2 ms 2684 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2676 KB Output is correct
12 Correct 2 ms 2672 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2672 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2676 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2676 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2680 KB Output is correct
27 Correct 2 ms 2676 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2680 KB Output is correct
31 Correct 2 ms 2680 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2672 KB Output is correct
4 Correct 2 ms 2684 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2676 KB Output is correct
12 Correct 2 ms 2672 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2672 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2676 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2676 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2680 KB Output is correct
27 Correct 2 ms 2676 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2680 KB Output is correct
31 Correct 2 ms 2680 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2804 KB Output is correct
37 Correct 2 ms 2772 KB Output is correct
38 Correct 11 ms 2804 KB Output is correct
39 Correct 11 ms 2772 KB Output is correct
40 Correct 13 ms 2772 KB Output is correct
41 Correct 2 ms 2772 KB Output is correct
42 Correct 2 ms 2772 KB Output is correct
43 Correct 2 ms 2772 KB Output is correct
44 Correct 2 ms 2772 KB Output is correct
45 Correct 3 ms 2800 KB Output is correct
46 Correct 3 ms 2808 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 2 ms 2772 KB Output is correct
49 Correct 2 ms 2772 KB Output is correct
50 Correct 2 ms 2772 KB Output is correct
51 Correct 8 ms 2832 KB Output is correct
52 Correct 6 ms 2772 KB Output is correct
53 Correct 10 ms 2772 KB Output is correct
54 Correct 10 ms 2772 KB Output is correct
55 Correct 10 ms 2772 KB Output is correct
56 Correct 9 ms 2772 KB Output is correct
57 Correct 8 ms 2832 KB Output is correct
58 Correct 12 ms 2832 KB Output is correct
59 Correct 8 ms 2772 KB Output is correct
60 Correct 5 ms 2804 KB Output is correct
61 Correct 4 ms 2800 KB Output is correct
62 Correct 3 ms 2800 KB Output is correct
63 Correct 8 ms 2824 KB Output is correct
64 Correct 7 ms 2808 KB Output is correct
65 Correct 7 ms 2772 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 15064 KB Output is correct
2 Correct 48 ms 15132 KB Output is correct
3 Correct 53 ms 10996 KB Output is correct
4 Correct 46 ms 13056 KB Output is correct
5 Correct 47 ms 9692 KB Output is correct
6 Correct 41 ms 9640 KB Output is correct
7 Correct 44 ms 8568 KB Output is correct
8 Correct 41 ms 9196 KB Output is correct
9 Correct 57 ms 7668 KB Output is correct
10 Correct 56 ms 8460 KB Output is correct
11 Correct 35 ms 6776 KB Output is correct
12 Correct 33 ms 6588 KB Output is correct
13 Correct 29 ms 6652 KB Output is correct
14 Correct 34 ms 6476 KB Output is correct
15 Correct 22 ms 6104 KB Output is correct
16 Correct 25 ms 6120 KB Output is correct
17 Correct 3 ms 3572 KB Output is correct
18 Correct 3 ms 3540 KB Output is correct
19 Correct 3 ms 3444 KB Output is correct
20 Correct 3 ms 3440 KB Output is correct
21 Correct 3 ms 3444 KB Output is correct
22 Correct 3 ms 3528 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 2724 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2684 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2772 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2684 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2704 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 3 ms 2692 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2652 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 7464 KB Output is correct
2 Correct 39 ms 7472 KB Output is correct
3 Correct 45 ms 7540 KB Output is correct
4 Correct 43 ms 7444 KB Output is correct
5 Correct 38 ms 7464 KB Output is correct
6 Correct 47 ms 11664 KB Output is correct
7 Correct 43 ms 10112 KB Output is correct
8 Correct 42 ms 9344 KB Output is correct
9 Correct 44 ms 8776 KB Output is correct
10 Correct 43 ms 7204 KB Output is correct
11 Correct 39 ms 7512 KB Output is correct
12 Correct 43 ms 7148 KB Output is correct
13 Correct 38 ms 7044 KB Output is correct
14 Correct 39 ms 6740 KB Output is correct
15 Correct 30 ms 6564 KB Output is correct
16 Correct 21 ms 6036 KB Output is correct
17 Correct 27 ms 7916 KB Output is correct
18 Correct 27 ms 7864 KB Output is correct
19 Correct 29 ms 7884 KB Output is correct
20 Correct 31 ms 7880 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Incorrect 2 ms 2644 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 7524 KB Output is correct
2 Correct 49 ms 7532 KB Output is correct
3 Incorrect 42 ms 7500 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2672 KB Output is correct
4 Correct 2 ms 2684 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2676 KB Output is correct
12 Correct 2 ms 2672 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2672 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2676 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2676 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2680 KB Output is correct
27 Correct 2 ms 2676 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2680 KB Output is correct
31 Correct 2 ms 2680 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2804 KB Output is correct
37 Correct 2 ms 2772 KB Output is correct
38 Correct 11 ms 2804 KB Output is correct
39 Correct 11 ms 2772 KB Output is correct
40 Correct 13 ms 2772 KB Output is correct
41 Correct 2 ms 2772 KB Output is correct
42 Correct 2 ms 2772 KB Output is correct
43 Correct 2 ms 2772 KB Output is correct
44 Correct 2 ms 2772 KB Output is correct
45 Correct 3 ms 2800 KB Output is correct
46 Correct 3 ms 2808 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 2 ms 2772 KB Output is correct
49 Correct 2 ms 2772 KB Output is correct
50 Correct 2 ms 2772 KB Output is correct
51 Correct 8 ms 2832 KB Output is correct
52 Correct 6 ms 2772 KB Output is correct
53 Correct 10 ms 2772 KB Output is correct
54 Correct 10 ms 2772 KB Output is correct
55 Correct 10 ms 2772 KB Output is correct
56 Correct 9 ms 2772 KB Output is correct
57 Correct 8 ms 2832 KB Output is correct
58 Correct 12 ms 2832 KB Output is correct
59 Correct 8 ms 2772 KB Output is correct
60 Correct 5 ms 2804 KB Output is correct
61 Correct 4 ms 2800 KB Output is correct
62 Correct 3 ms 2800 KB Output is correct
63 Correct 8 ms 2824 KB Output is correct
64 Correct 7 ms 2808 KB Output is correct
65 Correct 7 ms 2772 KB Output is correct
66 Correct 2 ms 2644 KB Output is correct
67 Correct 2 ms 2644 KB Output is correct
68 Incorrect 2 ms 2644 KB Output isn't correct
69 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2672 KB Output is correct
4 Correct 2 ms 2684 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2676 KB Output is correct
12 Correct 2 ms 2672 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2672 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2676 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2676 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2680 KB Output is correct
27 Correct 2 ms 2676 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2680 KB Output is correct
31 Correct 2 ms 2680 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2804 KB Output is correct
37 Correct 2 ms 2772 KB Output is correct
38 Correct 11 ms 2804 KB Output is correct
39 Correct 11 ms 2772 KB Output is correct
40 Correct 13 ms 2772 KB Output is correct
41 Correct 2 ms 2772 KB Output is correct
42 Correct 2 ms 2772 KB Output is correct
43 Correct 2 ms 2772 KB Output is correct
44 Correct 2 ms 2772 KB Output is correct
45 Correct 3 ms 2800 KB Output is correct
46 Correct 3 ms 2808 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 2 ms 2772 KB Output is correct
49 Correct 2 ms 2772 KB Output is correct
50 Correct 2 ms 2772 KB Output is correct
51 Correct 8 ms 2832 KB Output is correct
52 Correct 6 ms 2772 KB Output is correct
53 Correct 10 ms 2772 KB Output is correct
54 Correct 10 ms 2772 KB Output is correct
55 Correct 10 ms 2772 KB Output is correct
56 Correct 9 ms 2772 KB Output is correct
57 Correct 8 ms 2832 KB Output is correct
58 Correct 12 ms 2832 KB Output is correct
59 Correct 8 ms 2772 KB Output is correct
60 Correct 5 ms 2804 KB Output is correct
61 Correct 4 ms 2800 KB Output is correct
62 Correct 3 ms 2800 KB Output is correct
63 Correct 8 ms 2824 KB Output is correct
64 Correct 7 ms 2808 KB Output is correct
65 Correct 7 ms 2772 KB Output is correct
66 Correct 52 ms 15064 KB Output is correct
67 Correct 48 ms 15132 KB Output is correct
68 Correct 53 ms 10996 KB Output is correct
69 Correct 46 ms 13056 KB Output is correct
70 Correct 47 ms 9692 KB Output is correct
71 Correct 41 ms 9640 KB Output is correct
72 Correct 44 ms 8568 KB Output is correct
73 Correct 41 ms 9196 KB Output is correct
74 Correct 57 ms 7668 KB Output is correct
75 Correct 56 ms 8460 KB Output is correct
76 Correct 35 ms 6776 KB Output is correct
77 Correct 33 ms 6588 KB Output is correct
78 Correct 29 ms 6652 KB Output is correct
79 Correct 34 ms 6476 KB Output is correct
80 Correct 22 ms 6104 KB Output is correct
81 Correct 25 ms 6120 KB Output is correct
82 Correct 3 ms 3572 KB Output is correct
83 Correct 3 ms 3540 KB Output is correct
84 Correct 3 ms 3444 KB Output is correct
85 Correct 3 ms 3440 KB Output is correct
86 Correct 3 ms 3444 KB Output is correct
87 Correct 3 ms 3528 KB Output is correct
88 Correct 2 ms 2688 KB Output is correct
89 Correct 2 ms 2724 KB Output is correct
90 Correct 2 ms 2644 KB Output is correct
91 Correct 2 ms 2684 KB Output is correct
92 Correct 2 ms 2772 KB Output is correct
93 Correct 2 ms 2772 KB Output is correct
94 Correct 2 ms 2772 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 2 ms 2644 KB Output is correct
97 Correct 2 ms 2684 KB Output is correct
98 Correct 2 ms 2644 KB Output is correct
99 Correct 2 ms 2704 KB Output is correct
100 Correct 2 ms 2644 KB Output is correct
101 Correct 3 ms 2692 KB Output is correct
102 Correct 2 ms 2644 KB Output is correct
103 Correct 2 ms 2644 KB Output is correct
104 Correct 2 ms 2644 KB Output is correct
105 Correct 2 ms 2652 KB Output is correct
106 Correct 2 ms 2644 KB Output is correct
107 Correct 2 ms 2644 KB Output is correct
108 Correct 40 ms 7464 KB Output is correct
109 Correct 39 ms 7472 KB Output is correct
110 Correct 45 ms 7540 KB Output is correct
111 Correct 43 ms 7444 KB Output is correct
112 Correct 38 ms 7464 KB Output is correct
113 Correct 47 ms 11664 KB Output is correct
114 Correct 43 ms 10112 KB Output is correct
115 Correct 42 ms 9344 KB Output is correct
116 Correct 44 ms 8776 KB Output is correct
117 Correct 43 ms 7204 KB Output is correct
118 Correct 39 ms 7512 KB Output is correct
119 Correct 43 ms 7148 KB Output is correct
120 Correct 38 ms 7044 KB Output is correct
121 Correct 39 ms 6740 KB Output is correct
122 Correct 30 ms 6564 KB Output is correct
123 Correct 21 ms 6036 KB Output is correct
124 Correct 27 ms 7916 KB Output is correct
125 Correct 27 ms 7864 KB Output is correct
126 Correct 29 ms 7884 KB Output is correct
127 Correct 31 ms 7880 KB Output is correct
128 Correct 2 ms 2644 KB Output is correct
129 Correct 2 ms 2644 KB Output is correct
130 Incorrect 2 ms 2644 KB Output isn't correct
131 Halted 0 ms 0 KB -