oj.uz

Submission #897746

# Submission time Handle Problem Language Result Execution time Memory
897746 2024-01-03T15:55:40 Z aqxa Dreaming (IOI13_dreaming) C++17
47 / 100
 120 ms 34644 KB 
#include <bits/stdc++.h>
using namespace std;
#include "dreaming.h"

using ll = long long; 

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])); 
	}

	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)); 
		}
	}
	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(); 
	if (sz == 1) {
		assert(m + 1 == n); 
	} else {
		ans = max(ans, mxdist[sz - 1] + mxdist[sz - 2] + 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 N = 12, M = 8, L = 2; 
// 	int A[]{0,8,2,5,5,1,1,10};
// 	int B[]{8,2,7,11,1,3,9,6}; 
// 	int C[]{4,2,4,3,7,1,5,3};
	
// 	cout << "answer: " << travelTime(N, M, L, A, B, C); 

// 	return 0; 
// }

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 26708 KB Output is correct
2 Correct 90 ms 26172 KB Output is correct
3 Correct 39 ms 22864 KB Output is correct
4 Correct 10 ms 12124 KB Output is correct
5 Correct 10 ms 11100 KB Output is correct
6 Correct 18 ms 13404 KB Output is correct
7 Correct 3 ms 9560 KB Output is correct
8 Correct 24 ms 16732 KB Output is correct
9 Correct 36 ms 20316 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 59 ms 23124 KB Output is correct
12 Correct 106 ms 25424 KB Output is correct
13 Correct 3 ms 9816 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 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 3 ms 9716 KB Output is correct
6 Correct 3 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 3 ms 9560 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 3 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9560 KB Output is correct
14 Correct 3 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 2 ms 9664 KB Output is correct
18 Correct 2 ms 9632 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 2 ms 9636 KB Output is correct
21 Correct 2 ms 9560 KB Output is correct
22 Correct 3 ms 9560 KB Output is correct
23 Correct 2 ms 9644 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 67 ms 26708 KB Output is correct
2 Correct 90 ms 26172 KB Output is correct
3 Correct 39 ms 22864 KB Output is correct
4 Correct 10 ms 12124 KB Output is correct
5 Correct 10 ms 11100 KB Output is correct
6 Correct 18 ms 13404 KB Output is correct
7 Correct 3 ms 9560 KB Output is correct
8 Correct 24 ms 16732 KB Output is correct
9 Correct 36 ms 20316 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 59 ms 23124 KB Output is correct
12 Correct 106 ms 25424 KB Output is correct
13 Correct 3 ms 9816 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 2 ms 9560 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 3 ms 9716 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 3 ms 9560 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 3 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9560 KB Output is correct
27 Correct 3 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 2 ms 9664 KB Output is correct
31 Correct 2 ms 9632 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 2 ms 9636 KB Output is correct
34 Correct 2 ms 9560 KB Output is correct
35 Correct 3 ms 9560 KB Output is correct
36 Correct 2 ms 9644 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 101 ms 27812 KB Output is correct
40 Correct 68 ms 27380 KB Output is correct
41 Correct 49 ms 23636 KB Output is correct
42 Correct 8 ms 12120 KB Output is correct
43 Correct 2 ms 9564 KB Output is correct
44 Correct 2 ms 9564 KB Output is correct
45 Correct 3 ms 9560 KB Output is correct
46 Correct 2 ms 9564 KB Output is correct
47 Correct 2 ms 9564 KB Output is correct
48 Correct 3 ms 9560 KB Output is correct
49 Correct 2 ms 9564 KB Output is correct
50 Correct 2 ms 9564 KB Output is correct
51 Correct 2 ms 9564 KB Output is correct
52 Correct 3 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 120 ms 24404 KB Output is correct
58 Correct 68 ms 24404 KB Output is correct
59 Correct 74 ms 24584 KB Output is correct
60 Correct 74 ms 24240 KB Output is correct
61 Correct 73 ms 24332 KB Output is correct
62 Correct 82 ms 24460 KB Output is correct
63 Correct 98 ms 24188 KB Output is correct
64 Correct 94 ms 24236 KB Output is correct
65 Correct 75 ms 24404 KB Output is correct
66 Correct 71 ms 24400 KB Output is correct
67 Correct 69 ms 24376 KB Output is correct
68 Correct 70 ms 24400 KB Output is correct
69 Correct 74 ms 24808 KB Output is correct
70 Correct 71 ms 24588 KB Output is correct
71 Correct 2 ms 9564 KB Output is correct
72 Correct 6 ms 9952 KB Output is correct
73 Correct 5 ms 10076 KB Output is correct
74 Correct 3 ms 10076 KB Output is correct
75 Correct 5 ms 9956 KB Output is correct
76 Correct 5 ms 9888 KB Output is correct
77 Correct 4 ms 10076 KB Output is correct
78 Correct 4 ms 10072 KB Output is correct
79 Correct 4 ms 10076 KB Output is correct
80 Correct 73 ms 24404 KB Output is correct
81 Correct 69 ms 24404 KB Output is correct
82 Correct 98 ms 24568 KB Output is correct
83 Correct 71 ms 24380 KB Output is correct
84 Correct 3 ms 10072 KB Output is correct
85 Correct 3 ms 9924 KB Output is correct
86 Correct 3 ms 9816 KB Output is correct
87 Correct 4 ms 9820 KB Output is correct
88 Correct 4 ms 9816 KB Output is correct
89 Correct 3 ms 9816 KB Output is correct
90 Correct 4 ms 9820 KB Output is correct
91 Correct 3 ms 10076 KB Output is correct
92 Correct 4 ms 10076 KB Output is correct
93 Correct 3 ms 9820 KB Output is correct
94 Correct 2 ms 9564 KB Output is correct
95 Correct 2 ms 9564 KB Output is correct
96 Correct 2 ms 9656 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 9564 KB Output is correct
102 Correct 2 ms 9564 KB Output is correct
103 Correct 3 ms 9564 KB Output is correct
104 Correct 7 ms 11356 KB Output is correct
105 Correct 13 ms 13760 KB Output is correct
106 Correct 3 ms 9564 KB Output is correct
107 Correct 33 ms 17372 KB Output is correct
108 Correct 45 ms 20792 KB Output is correct
109 Correct 2 ms 9564 KB Output is correct
110 Correct 54 ms 23344 KB Output is correct
111 Correct 81 ms 25488 KB Output is correct
112 Correct 3 ms 9820 KB Output is correct
113 Correct 111 ms 34644 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 17636 KB Output is correct
2 Incorrect 26 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 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 3 ms 9716 KB Output is correct
6 Correct 3 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 3 ms 9560 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 3 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9560 KB Output is correct
14 Correct 3 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 2 ms 9664 KB Output is correct
18 Correct 2 ms 9632 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 2 ms 9636 KB Output is correct
21 Correct 2 ms 9560 KB Output is correct
22 Correct 3 ms 9560 KB Output is correct
23 Correct 2 ms 9644 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 3 ms 9820 KB Output is correct
28 Correct 4 ms 9820 KB Output is correct
29 Correct 3 ms 9560 KB Output is correct
30 Correct 3 ms 9820 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Incorrect 5 ms 9560 KB Output isn't correct
33 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 26708 KB Output is correct
2 Correct 90 ms 26172 KB Output is correct
3 Correct 39 ms 22864 KB Output is correct
4 Correct 10 ms 12124 KB Output is correct
5 Correct 10 ms 11100 KB Output is correct
6 Correct 18 ms 13404 KB Output is correct
7 Correct 3 ms 9560 KB Output is correct
8 Correct 24 ms 16732 KB Output is correct
9 Correct 36 ms 20316 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 59 ms 23124 KB Output is correct
12 Correct 106 ms 25424 KB Output is correct
13 Correct 3 ms 9816 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 2 ms 9560 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 3 ms 9716 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 3 ms 9560 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 3 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9560 KB Output is correct
27 Correct 3 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 2 ms 9664 KB Output is correct
31 Correct 2 ms 9632 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 2 ms 9636 KB Output is correct
34 Correct 2 ms 9560 KB Output is correct
35 Correct 3 ms 9560 KB Output is correct
36 Correct 2 ms 9644 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 101 ms 27812 KB Output is correct
40 Correct 68 ms 27380 KB Output is correct
41 Correct 49 ms 23636 KB Output is correct
42 Correct 8 ms 12120 KB Output is correct
43 Correct 2 ms 9564 KB Output is correct
44 Correct 2 ms 9564 KB Output is correct
45 Correct 3 ms 9560 KB Output is correct
46 Correct 2 ms 9564 KB Output is correct
47 Correct 2 ms 9564 KB Output is correct
48 Correct 3 ms 9560 KB Output is correct
49 Correct 2 ms 9564 KB Output is correct
50 Correct 2 ms 9564 KB Output is correct
51 Correct 2 ms 9564 KB Output is correct
52 Correct 3 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 120 ms 24404 KB Output is correct
58 Correct 68 ms 24404 KB Output is correct
59 Correct 74 ms 24584 KB Output is correct
60 Correct 74 ms 24240 KB Output is correct
61 Correct 73 ms 24332 KB Output is correct
62 Correct 82 ms 24460 KB Output is correct
63 Correct 98 ms 24188 KB Output is correct
64 Correct 94 ms 24236 KB Output is correct
65 Correct 75 ms 24404 KB Output is correct
66 Correct 71 ms 24400 KB Output is correct
67 Correct 69 ms 24376 KB Output is correct
68 Correct 70 ms 24400 KB Output is correct
69 Correct 74 ms 24808 KB Output is correct
70 Correct 71 ms 24588 KB Output is correct
71 Correct 2 ms 9564 KB Output is correct
72 Correct 6 ms 9952 KB Output is correct
73 Correct 5 ms 10076 KB Output is correct
74 Correct 3 ms 10076 KB Output is correct
75 Correct 5 ms 9956 KB Output is correct
76 Correct 5 ms 9888 KB Output is correct
77 Correct 4 ms 10076 KB Output is correct
78 Correct 4 ms 10072 KB Output is correct
79 Correct 4 ms 10076 KB Output is correct
80 Correct 73 ms 24404 KB Output is correct
81 Correct 69 ms 24404 KB Output is correct
82 Correct 98 ms 24568 KB Output is correct
83 Correct 71 ms 24380 KB Output is correct
84 Correct 3 ms 10072 KB Output is correct
85 Correct 3 ms 9924 KB Output is correct
86 Correct 3 ms 9816 KB Output is correct
87 Correct 4 ms 9820 KB Output is correct
88 Correct 4 ms 9816 KB Output is correct
89 Correct 3 ms 9816 KB Output is correct
90 Correct 4 ms 9820 KB Output is correct
91 Correct 3 ms 10076 KB Output is correct
92 Correct 4 ms 10076 KB Output is correct
93 Correct 3 ms 9820 KB Output is correct
94 Correct 2 ms 9564 KB Output is correct
95 Correct 2 ms 9564 KB Output is correct
96 Correct 2 ms 9656 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 9564 KB Output is correct
102 Correct 2 ms 9564 KB Output is correct
103 Correct 3 ms 9564 KB Output is correct
104 Correct 7 ms 11356 KB Output is correct
105 Correct 13 ms 13760 KB Output is correct
106 Correct 3 ms 9564 KB Output is correct
107 Correct 33 ms 17372 KB Output is correct
108 Correct 45 ms 20792 KB Output is correct
109 Correct 2 ms 9564 KB Output is correct
110 Correct 54 ms 23344 KB Output is correct
111 Correct 81 ms 25488 KB Output is correct
112 Correct 3 ms 9820 KB Output is correct
113 Correct 111 ms 34644 KB Output is correct
114 Correct 27 ms 17636 KB Output is correct
115 Incorrect 26 ms 17880 KB Output isn't correct
116 Halted 0 ms 0 KB -