oj.uz

Submission #897766

# Submission time Handle Problem Language Result Execution time Memory
897766 2024-01-03T16:14:59 Z aqxa Dreaming (IOI13_dreaming) C++17
47 / 100
 94 ms 33116 KB 
#include <bits/stdc++.h>
using namespace std;
#include "dreaming.h"
 
using ll = long long; 
// #define int ll 

const int N = 1e5; 
 
#define fs first
#define sc second
#define mp make_pair
 
vector<pair<int, int>> g[N]; 
int vis[N], mxd[N], mx[N]; 
multiset<int> ms[N]; 
 
void dfs(int x, int p) {
	vis[x] = 1; 
	for (auto [u, w]: g[x]) {
		if (u != p) {
			dfs(u, x); 
			mxd[x] = max(mxd[x], mxd[u] + w);
		}
	}
}
void dfs2(int x, int p, int f) {
	ms[x].insert(f); 
	for (auto [u, w]: g[x]) {
		if (u != p) {
			ms[x].insert(mxd[u] + w); 
		}
	}
	mx[x] = *(ms[x].rbegin()); 
	for (auto [u, w]: g[x]) {
		if (u != p) {
			ms[x].erase(ms[x].lower_bound(mxd[u] + w)); 
			dfs2(u, x, *(ms[x].rbegin()) + w); 
			ms[x].insert(mxd[u] + w); 
		}
	}
}
int dfs3(int x, int p) {
	int res = mx[x]; 
	for (auto [u, w]: g[x]) {
		if (u == p) continue; 
		res = min(res, dfs3(u, x)); 
	}
	return res; 
}
 
int travelTime(int n, int m, int l, int u[], int v[], int t[]){
	for (int i = 0; i < n; ++i) {
		vis[i] = 0; 
		mxd[i] = 0; 
		mx[i] = 0; 
	}
	for (int i = 0; i < m; ++i) {
		g[u[i]].push_back(mp(v[i], t[i])); 
		g[v[i]].push_back(mp(u[i], t[i])); 
	}

	int ok = 1; 
 
	vector<int> mxdist; 
	for (int i = 0; i < n; ++i) {
		if (!vis[i]) {
			dfs(i, -1); 
			dfs2(i, -1, 0); 
			mxdist.push_back(dfs3(i, -1)); 
		}
		ok &= (int) g[i].size() <= 1; 
	}
	sort(mxdist.begin(), mxdist.end()); 
	
	int ans = 0; 
	for (int i = 0; i < n; ++i) {
		ans = max(ans, mx[i]); 
	}
 
	int sz = (int) mxdist.size(); 
	assert(sz > 0); 
	if (sz == 1) {
		assert(m + 1 == n); 
	} else {
		ans = max(ans, mxdist[sz - 1] + mxdist[sz - 2] + l); 
		for (int i = 0; i < sz - 2; ++i) {
			ans = max(ans, mxdist[sz - 1] + mxdist[i] + l + l); 
		}
	}
 
	// for (int i = 0; i < n; ++i) {
	// 	cout << "! " << i << ' ' << mx[i] << '\n';
	// }

  	return ans; 
}
 
 
// int32_t main() {
// 	ios::sync_with_stdio(false);
// 	cin.tie(nullptr);
 
// 	int nn = 4, M = 2, L = 2; 
// 	int A[]{1, 0};//{0,8,2,5,5,1,1,10};
// 	int B[]{2, 4};//{8,2,7,11,1,3,9,6}; 
// 	int C[]{1000, 2000};//{4,2,4,3,7,1,5,3};
	
// 	cout << "answer: " << travelTime(nn, M, L, A, B, C); 
 
// 	return 0; 
// }

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 26756 KB Output is correct
2 Correct 61 ms 26196 KB Output is correct
3 Correct 36 ms 23128 KB Output is correct
4 Correct 8 ms 12124 KB Output is correct
5 Correct 7 ms 11096 KB Output is correct
6 Correct 12 ms 13352 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 24 ms 16900 KB Output is correct
9 Correct 39 ms 20308 KB Output is correct
10 Correct 2 ms 9560 KB Output is correct
11 Correct 52 ms 22100 KB Output is correct
12 Correct 57 ms 24404 KB Output is correct
13 Correct 2 ms 9820 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 3 ms 9560 KB Output is correct
4 Correct 2 ms 9560 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 3 ms 9564 KB Output is correct
18 Correct 2 ms 9764 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 26756 KB Output is correct
2 Correct 61 ms 26196 KB Output is correct
3 Correct 36 ms 23128 KB Output is correct
4 Correct 8 ms 12124 KB Output is correct
5 Correct 7 ms 11096 KB Output is correct
6 Correct 12 ms 13352 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 24 ms 16900 KB Output is correct
9 Correct 39 ms 20308 KB Output is correct
10 Correct 2 ms 9560 KB Output is correct
11 Correct 52 ms 22100 KB Output is correct
12 Correct 57 ms 24404 KB Output is correct
13 Correct 2 ms 9820 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 3 ms 9560 KB Output is correct
17 Correct 2 ms 9560 KB Output is correct
18 Correct 2 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9564 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 3 ms 9564 KB Output is correct
31 Correct 2 ms 9764 KB Output is correct
32 Correct 2 ms 9564 KB Output is correct
33 Correct 2 ms 9564 KB Output is correct
34 Correct 2 ms 9564 KB Output is correct
35 Correct 2 ms 9564 KB Output is correct
36 Correct 2 ms 9564 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 69 ms 26724 KB Output is correct
40 Correct 66 ms 26316 KB Output is correct
41 Correct 46 ms 22796 KB Output is correct
42 Correct 8 ms 12124 KB Output is correct
43 Correct 2 ms 9564 KB Output is correct
44 Correct 2 ms 9560 KB Output is correct
45 Correct 2 ms 9564 KB Output is correct
46 Correct 2 ms 9564 KB Output is correct
47 Correct 2 ms 9564 KB Output is correct
48 Correct 2 ms 9564 KB Output is correct
49 Correct 3 ms 9560 KB Output is correct
50 Correct 2 ms 9564 KB Output is correct
51 Correct 2 ms 9560 KB Output is correct
52 Correct 2 ms 9564 KB Output is correct
53 Correct 2 ms 9564 KB Output is correct
54 Correct 2 ms 9564 KB Output is correct
55 Correct 2 ms 9564 KB Output is correct
56 Correct 2 ms 9564 KB Output is correct
57 Correct 72 ms 23120 KB Output is correct
58 Correct 63 ms 23028 KB Output is correct
59 Correct 70 ms 23160 KB Output is correct
60 Correct 64 ms 23076 KB Output is correct
61 Correct 71 ms 23128 KB Output is correct
62 Correct 73 ms 22868 KB Output is correct
63 Correct 60 ms 22860 KB Output is correct
64 Correct 77 ms 22872 KB Output is correct
65 Correct 63 ms 22868 KB Output is correct
66 Correct 72 ms 23056 KB Output is correct
67 Correct 73 ms 23124 KB Output is correct
68 Correct 77 ms 23020 KB Output is correct
69 Correct 70 ms 23044 KB Output is correct
70 Correct 73 ms 23004 KB Output is correct
71 Correct 2 ms 9564 KB Output is correct
72 Correct 3 ms 10076 KB Output is correct
73 Correct 4 ms 10072 KB Output is correct
74 Correct 3 ms 10072 KB Output is correct
75 Correct 4 ms 10076 KB Output is correct
76 Correct 4 ms 10076 KB Output is correct
77 Correct 3 ms 10076 KB Output is correct
78 Correct 4 ms 10076 KB Output is correct
79 Correct 3 ms 9932 KB Output is correct
80 Correct 92 ms 22960 KB Output is correct
81 Correct 88 ms 23144 KB Output is correct
82 Correct 65 ms 22868 KB Output is correct
83 Correct 73 ms 22864 KB Output is correct
84 Correct 3 ms 9816 KB Output is correct
85 Correct 3 ms 9820 KB Output is correct
86 Correct 3 ms 9820 KB Output is correct
87 Correct 4 ms 9820 KB Output is correct
88 Correct 4 ms 9820 KB Output is correct
89 Correct 4 ms 9820 KB Output is correct
90 Correct 3 ms 9820 KB Output is correct
91 Correct 3 ms 10076 KB Output is correct
92 Correct 3 ms 9820 KB Output is correct
93 Correct 3 ms 9820 KB Output is correct
94 Correct 3 ms 9564 KB Output is correct
95 Correct 2 ms 9564 KB Output is correct
96 Correct 2 ms 9564 KB Output is correct
97 Correct 2 ms 9564 KB Output is correct
98 Correct 2 ms 9564 KB Output is correct
99 Correct 2 ms 9564 KB Output is correct
100 Correct 2 ms 9564 KB Output is correct
101 Correct 2 ms 9560 KB Output is correct
102 Correct 2 ms 9564 KB Output is correct
103 Correct 2 ms 9560 KB Output is correct
104 Correct 7 ms 11100 KB Output is correct
105 Correct 13 ms 13276 KB Output is correct
106 Correct 2 ms 9564 KB Output is correct
107 Correct 26 ms 16852 KB Output is correct
108 Correct 35 ms 20316 KB Output is correct
109 Correct 2 ms 9564 KB Output is correct
110 Correct 61 ms 22092 KB Output is correct
111 Correct 58 ms 24148 KB Output is correct
112 Correct 2 ms 9816 KB Output is correct
113 Correct 94 ms 33116 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 17752 KB Output is correct
2 Incorrect 27 ms 17880 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 3 ms 9560 KB Output is correct
4 Correct 2 ms 9560 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 3 ms 9564 KB Output is correct
18 Correct 2 ms 9764 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 3 ms 9560 KB Output is correct
27 Correct 3 ms 9820 KB Output is correct
28 Correct 3 ms 9820 KB Output is correct
29 Correct 3 ms 9564 KB Output is correct
30 Correct 3 ms 9904 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Incorrect 2 ms 9564 KB Output isn't correct
33 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 26756 KB Output is correct
2 Correct 61 ms 26196 KB Output is correct
3 Correct 36 ms 23128 KB Output is correct
4 Correct 8 ms 12124 KB Output is correct
5 Correct 7 ms 11096 KB Output is correct
6 Correct 12 ms 13352 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 24 ms 16900 KB Output is correct
9 Correct 39 ms 20308 KB Output is correct
10 Correct 2 ms 9560 KB Output is correct
11 Correct 52 ms 22100 KB Output is correct
12 Correct 57 ms 24404 KB Output is correct
13 Correct 2 ms 9820 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 3 ms 9560 KB Output is correct
17 Correct 2 ms 9560 KB Output is correct
18 Correct 2 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9564 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 3 ms 9564 KB Output is correct
31 Correct 2 ms 9764 KB Output is correct
32 Correct 2 ms 9564 KB Output is correct
33 Correct 2 ms 9564 KB Output is correct
34 Correct 2 ms 9564 KB Output is correct
35 Correct 2 ms 9564 KB Output is correct
36 Correct 2 ms 9564 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 69 ms 26724 KB Output is correct
40 Correct 66 ms 26316 KB Output is correct
41 Correct 46 ms 22796 KB Output is correct
42 Correct 8 ms 12124 KB Output is correct
43 Correct 2 ms 9564 KB Output is correct
44 Correct 2 ms 9560 KB Output is correct
45 Correct 2 ms 9564 KB Output is correct
46 Correct 2 ms 9564 KB Output is correct
47 Correct 2 ms 9564 KB Output is correct
48 Correct 2 ms 9564 KB Output is correct
49 Correct 3 ms 9560 KB Output is correct
50 Correct 2 ms 9564 KB Output is correct
51 Correct 2 ms 9560 KB Output is correct
52 Correct 2 ms 9564 KB Output is correct
53 Correct 2 ms 9564 KB Output is correct
54 Correct 2 ms 9564 KB Output is correct
55 Correct 2 ms 9564 KB Output is correct
56 Correct 2 ms 9564 KB Output is correct
57 Correct 72 ms 23120 KB Output is correct
58 Correct 63 ms 23028 KB Output is correct
59 Correct 70 ms 23160 KB Output is correct
60 Correct 64 ms 23076 KB Output is correct
61 Correct 71 ms 23128 KB Output is correct
62 Correct 73 ms 22868 KB Output is correct
63 Correct 60 ms 22860 KB Output is correct
64 Correct 77 ms 22872 KB Output is correct
65 Correct 63 ms 22868 KB Output is correct
66 Correct 72 ms 23056 KB Output is correct
67 Correct 73 ms 23124 KB Output is correct
68 Correct 77 ms 23020 KB Output is correct
69 Correct 70 ms 23044 KB Output is correct
70 Correct 73 ms 23004 KB Output is correct
71 Correct 2 ms 9564 KB Output is correct
72 Correct 3 ms 10076 KB Output is correct
73 Correct 4 ms 10072 KB Output is correct
74 Correct 3 ms 10072 KB Output is correct
75 Correct 4 ms 10076 KB Output is correct
76 Correct 4 ms 10076 KB Output is correct
77 Correct 3 ms 10076 KB Output is correct
78 Correct 4 ms 10076 KB Output is correct
79 Correct 3 ms 9932 KB Output is correct
80 Correct 92 ms 22960 KB Output is correct
81 Correct 88 ms 23144 KB Output is correct
82 Correct 65 ms 22868 KB Output is correct
83 Correct 73 ms 22864 KB Output is correct
84 Correct 3 ms 9816 KB Output is correct
85 Correct 3 ms 9820 KB Output is correct
86 Correct 3 ms 9820 KB Output is correct
87 Correct 4 ms 9820 KB Output is correct
88 Correct 4 ms 9820 KB Output is correct
89 Correct 4 ms 9820 KB Output is correct
90 Correct 3 ms 9820 KB Output is correct
91 Correct 3 ms 10076 KB Output is correct
92 Correct 3 ms 9820 KB Output is correct
93 Correct 3 ms 9820 KB Output is correct
94 Correct 3 ms 9564 KB Output is correct
95 Correct 2 ms 9564 KB Output is correct
96 Correct 2 ms 9564 KB Output is correct
97 Correct 2 ms 9564 KB Output is correct
98 Correct 2 ms 9564 KB Output is correct
99 Correct 2 ms 9564 KB Output is correct
100 Correct 2 ms 9564 KB Output is correct
101 Correct 2 ms 9560 KB Output is correct
102 Correct 2 ms 9564 KB Output is correct
103 Correct 2 ms 9560 KB Output is correct
104 Correct 7 ms 11100 KB Output is correct
105 Correct 13 ms 13276 KB Output is correct
106 Correct 2 ms 9564 KB Output is correct
107 Correct 26 ms 16852 KB Output is correct
108 Correct 35 ms 20316 KB Output is correct
109 Correct 2 ms 9564 KB Output is correct
110 Correct 61 ms 22092 KB Output is correct
111 Correct 58 ms 24148 KB Output is correct
112 Correct 2 ms 9816 KB Output is correct
113 Correct 94 ms 33116 KB Output is correct
114 Correct 31 ms 17752 KB Output is correct
115 Incorrect 27 ms 17880 KB Output isn't correct
116 Halted 0 ms 0 KB -