oj.uz

Submission #727612

# Submission time Handle Problem Language Result Execution time Memory
727612 2023-04-21T03:05:45 Z SanguineChameleon Duathlon (APIO18_duathlon) C++17
47 / 100
 66 ms 13024 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 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) {
	comp.push_back(u);
	flag[u] = true;
	node_cnt++;
	edge_cnt += adj[u].size();
	sz[u] = 1;
	for (auto v: adj[u]) {
		if (!flag[v]) {
			dfs(v);
			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;
	dfs(root);
	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 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;
	}
	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 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 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 2644 KB Output is correct
19 Correct 2 ms 2644 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 2644 KB Output is correct
23 Correct 1 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 2644 KB Output is correct
27 Correct 1 ms 2644 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 2644 KB Output is correct
31 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 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 2644 KB Output is correct
19 Correct 2 ms 2644 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 2644 KB Output is correct
23 Correct 1 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 2644 KB Output is correct
27 Correct 1 ms 2644 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 2644 KB Output is correct
31 Correct 1 ms 2644 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 2772 KB Output is correct
37 Correct 3 ms 2784 KB Output is correct
38 Correct 8 ms 2820 KB Output is correct
39 Correct 11 ms 2836 KB Output is correct
40 Correct 12 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 2772 KB Output is correct
46 Correct 3 ms 2772 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 9 ms 2824 KB Output is correct
52 Correct 6 ms 2772 KB Output is correct
53 Correct 9 ms 2828 KB Output is correct
54 Correct 11 ms 2828 KB Output is correct
55 Correct 10 ms 2736 KB Output is correct
56 Correct 11 ms 2828 KB Output is correct
57 Correct 8 ms 2772 KB Output is correct
58 Correct 8 ms 2772 KB Output is correct
59 Correct 7 ms 2828 KB Output is correct
60 Correct 5 ms 2832 KB Output is correct
61 Correct 4 ms 2772 KB Output is correct
62 Correct 3 ms 2772 KB Output is correct
63 Correct 8 ms 2772 KB Output is correct
64 Correct 8 ms 2824 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 50 ms 12968 KB Output is correct
2 Correct 66 ms 13024 KB Output is correct
3 Correct 62 ms 9744 KB Output is correct
4 Correct 57 ms 11316 KB Output is correct
5 Correct 46 ms 8652 KB Output is correct
6 Correct 41 ms 8652 KB Output is correct
7 Correct 43 ms 7780 KB Output is correct
8 Correct 44 ms 8260 KB Output is correct
9 Correct 38 ms 6932 KB Output is correct
10 Correct 41 ms 7592 KB Output is correct
11 Correct 36 ms 6232 KB Output is correct
12 Correct 30 ms 6096 KB Output is correct
13 Correct 33 ms 6092 KB Output is correct
14 Correct 29 ms 6016 KB Output is correct
15 Correct 20 ms 5680 KB Output is correct
16 Correct 20 ms 5624 KB Output is correct
17 Correct 3 ms 3156 KB Output is correct
18 Correct 3 ms 3156 KB Output is correct
19 Correct 3 ms 3156 KB Output is correct
20 Correct 2 ms 3156 KB Output is correct
21 Correct 4 ms 3156 KB Output is correct
22 Correct 3 ms 3156 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2684 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2680 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2680 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 2644 KB Output is correct
11 Correct 2 ms 2680 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2680 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 2680 KB Output is correct
18 Correct 2 ms 2688 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2684 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 6984 KB Output is correct
2 Correct 44 ms 8192 KB Output is correct
3 Correct 46 ms 8220 KB Output is correct
4 Correct 49 ms 8184 KB Output is correct
5 Correct 41 ms 8192 KB Output is correct
6 Correct 41 ms 11512 KB Output is correct
7 Correct 40 ms 10308 KB Output is correct
8 Correct 43 ms 9744 KB Output is correct
9 Correct 43 ms 9260 KB Output is correct
10 Correct 36 ms 7992 KB Output is correct
11 Correct 43 ms 8208 KB Output is correct
12 Correct 39 ms 7836 KB Output is correct
13 Correct 40 ms 7828 KB Output is correct
14 Correct 39 ms 7336 KB Output is correct
15 Correct 36 ms 7136 KB Output is correct
16 Correct 21 ms 6100 KB Output is correct
17 Correct 33 ms 8644 KB Output is correct
18 Correct 27 ms 8536 KB Output is correct
19 Correct 29 ms 8516 KB Output is correct
20 Correct 28 ms 8516 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 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 37 ms 6976 KB Output is correct
2 Correct 49 ms 8192 KB Output is correct
3 Incorrect 61 ms 8460 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 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 2644 KB Output is correct
19 Correct 2 ms 2644 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 2644 KB Output is correct
23 Correct 1 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 2644 KB Output is correct
27 Correct 1 ms 2644 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 2644 KB Output is correct
31 Correct 1 ms 2644 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 2772 KB Output is correct
37 Correct 3 ms 2784 KB Output is correct
38 Correct 8 ms 2820 KB Output is correct
39 Correct 11 ms 2836 KB Output is correct
40 Correct 12 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 2772 KB Output is correct
46 Correct 3 ms 2772 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 9 ms 2824 KB Output is correct
52 Correct 6 ms 2772 KB Output is correct
53 Correct 9 ms 2828 KB Output is correct
54 Correct 11 ms 2828 KB Output is correct
55 Correct 10 ms 2736 KB Output is correct
56 Correct 11 ms 2828 KB Output is correct
57 Correct 8 ms 2772 KB Output is correct
58 Correct 8 ms 2772 KB Output is correct
59 Correct 7 ms 2828 KB Output is correct
60 Correct 5 ms 2832 KB Output is correct
61 Correct 4 ms 2772 KB Output is correct
62 Correct 3 ms 2772 KB Output is correct
63 Correct 8 ms 2772 KB Output is correct
64 Correct 8 ms 2824 KB Output is correct
65 Correct 7 ms 2772 KB Output is correct
66 Correct 2 ms 2644 KB Output is correct
67 Correct 1 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 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 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 2644 KB Output is correct
19 Correct 2 ms 2644 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 2644 KB Output is correct
23 Correct 1 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 2644 KB Output is correct
27 Correct 1 ms 2644 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 2644 KB Output is correct
31 Correct 1 ms 2644 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 2772 KB Output is correct
37 Correct 3 ms 2784 KB Output is correct
38 Correct 8 ms 2820 KB Output is correct
39 Correct 11 ms 2836 KB Output is correct
40 Correct 12 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 2772 KB Output is correct
46 Correct 3 ms 2772 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 9 ms 2824 KB Output is correct
52 Correct 6 ms 2772 KB Output is correct
53 Correct 9 ms 2828 KB Output is correct
54 Correct 11 ms 2828 KB Output is correct
55 Correct 10 ms 2736 KB Output is correct
56 Correct 11 ms 2828 KB Output is correct
57 Correct 8 ms 2772 KB Output is correct
58 Correct 8 ms 2772 KB Output is correct
59 Correct 7 ms 2828 KB Output is correct
60 Correct 5 ms 2832 KB Output is correct
61 Correct 4 ms 2772 KB Output is correct
62 Correct 3 ms 2772 KB Output is correct
63 Correct 8 ms 2772 KB Output is correct
64 Correct 8 ms 2824 KB Output is correct
65 Correct 7 ms 2772 KB Output is correct
66 Correct 50 ms 12968 KB Output is correct
67 Correct 66 ms 13024 KB Output is correct
68 Correct 62 ms 9744 KB Output is correct
69 Correct 57 ms 11316 KB Output is correct
70 Correct 46 ms 8652 KB Output is correct
71 Correct 41 ms 8652 KB Output is correct
72 Correct 43 ms 7780 KB Output is correct
73 Correct 44 ms 8260 KB Output is correct
74 Correct 38 ms 6932 KB Output is correct
75 Correct 41 ms 7592 KB Output is correct
76 Correct 36 ms 6232 KB Output is correct
77 Correct 30 ms 6096 KB Output is correct
78 Correct 33 ms 6092 KB Output is correct
79 Correct 29 ms 6016 KB Output is correct
80 Correct 20 ms 5680 KB Output is correct
81 Correct 20 ms 5624 KB Output is correct
82 Correct 3 ms 3156 KB Output is correct
83 Correct 3 ms 3156 KB Output is correct
84 Correct 3 ms 3156 KB Output is correct
85 Correct 2 ms 3156 KB Output is correct
86 Correct 4 ms 3156 KB Output is correct
87 Correct 3 ms 3156 KB Output is correct
88 Correct 1 ms 2644 KB Output is correct
89 Correct 2 ms 2644 KB Output is correct
90 Correct 2 ms 2684 KB Output is correct
91 Correct 2 ms 2772 KB Output is correct
92 Correct 2 ms 2680 KB Output is correct
93 Correct 2 ms 2644 KB Output is correct
94 Correct 2 ms 2680 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 2644 KB Output is correct
98 Correct 2 ms 2680 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 2 ms 2644 KB Output is correct
101 Correct 2 ms 2680 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 2680 KB Output is correct
105 Correct 2 ms 2688 KB Output is correct
106 Correct 2 ms 2644 KB Output is correct
107 Correct 2 ms 2684 KB Output is correct
108 Correct 44 ms 6984 KB Output is correct
109 Correct 44 ms 8192 KB Output is correct
110 Correct 46 ms 8220 KB Output is correct
111 Correct 49 ms 8184 KB Output is correct
112 Correct 41 ms 8192 KB Output is correct
113 Correct 41 ms 11512 KB Output is correct
114 Correct 40 ms 10308 KB Output is correct
115 Correct 43 ms 9744 KB Output is correct
116 Correct 43 ms 9260 KB Output is correct
117 Correct 36 ms 7992 KB Output is correct
118 Correct 43 ms 8208 KB Output is correct
119 Correct 39 ms 7836 KB Output is correct
120 Correct 40 ms 7828 KB Output is correct
121 Correct 39 ms 7336 KB Output is correct
122 Correct 36 ms 7136 KB Output is correct
123 Correct 21 ms 6100 KB Output is correct
124 Correct 33 ms 8644 KB Output is correct
125 Correct 27 ms 8536 KB Output is correct
126 Correct 29 ms 8516 KB Output is correct
127 Correct 28 ms 8516 KB Output is correct
128 Correct 3 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 -