oj.uz

Submission #306501

# Submission time Handle Problem Language Result Execution time Memory
306501 2020-09-25T17:53:38 Z tengiz05 Dreaming (IOI13_dreaming) C++17
47 / 100
 198 ms 22136 KB 
#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;
int n;
const int N = 1e5+5;
bool used[N];
int depth[N];
int dp[N];
vector<pair<int, int>> edges[N];
vector<int> a[N];
// dfs for calculating dp. (dp[i] - maximum depth)
void dfs(int u, int p){
	used[u] = true;
	dp[u] = 0;
	a[u].push_back(0);a[u].push_back(0);
	for(auto X : edges[u]){
		int v = X.first;
		int cost = X.second;
		if(v == p)continue;
		dfs(v, u);
		dp[u] = max(dp[u], dp[v]+cost);
		a[u].push_back(dp[v]+cost);
	}
	sort(a[u].begin(), a[u].end());
	reverse(a[u].begin(), a[u].end());
}
 
//dfs for rerooting
int mn;
void dfs2(int u, int p, int T){
	int dpu = dp[u];
	for(auto X : edges[u]){
		int v = X.first;
		int cost = X.second;
		if(v == p)continue;
		int tmp = dp[v];
		if(dp[v]+cost == a[u][0])dp[u] = a[u][1];
		if(u != p)dp[u] = max(dp[u], dp[p] + T);
		dp[v] = max(dp[v], dp[u] + cost);
		mn = min(mn, dp[v]);
		dfs2(v, u, cost);
		dp[v] = tmp;
		dp[u] = dpu;
	}
}
 
//calculate best center for the tree
int calculate_center(int u){
	dfs(u, u);
	mn = dp[u];
	dfs2(u, u ,0);
	return mn;
}
int travelTime(int _N, int M, int L, int A[], int B[], int T[]) {
	n = _N;
	for(int i=0;i<M;i++){
		edges[A[i]].push_back({B[i], T[i]});
		edges[B[i]].push_back({A[i], T[i]});
	}
	vector<int> v;
	for(int i=0;i<n;i++){
		if(!used[i]){
			v.push_back(calculate_center(i));
		}
	}v.push_back(0);
	sort(v.begin(), v.end());
	reverse(v.begin(), v.end());
	if(v.size() == 0){
		return 0;
	}
	else if(v.size() == 1){
		return a[0][0] + a[0][1];
	}
	else {
		int m = 0;
		for(int i=0;i<n;i++){
			m = max(m, a[i][0]+a[i][1]);
		}
		return max(v[0]+v[1]+L, max(m, v[1]+v[2]+L));
	}
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 17016 KB Output is correct
2 Correct 101 ms 16632 KB Output is correct
3 Correct 61 ms 14584 KB Output is correct
4 Correct 14 ms 6816 KB Output is correct
5 Correct 12 ms 6016 KB Output is correct
6 Correct 22 ms 7672 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 49 ms 10104 KB Output is correct
9 Correct 60 ms 12664 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 94 ms 13688 KB Output is correct
12 Correct 110 ms 15352 KB Output is correct
13 Correct 5 ms 5120 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 17016 KB Output is correct
2 Correct 101 ms 16632 KB Output is correct
3 Correct 61 ms 14584 KB Output is correct
4 Correct 14 ms 6816 KB Output is correct
5 Correct 12 ms 6016 KB Output is correct
6 Correct 22 ms 7672 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 49 ms 10104 KB Output is correct
9 Correct 60 ms 12664 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 94 ms 13688 KB Output is correct
12 Correct 110 ms 15352 KB Output is correct
13 Correct 5 ms 5120 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 3 ms 4992 KB Output is correct
26 Correct 3 ms 4992 KB Output is correct
27 Correct 4 ms 4992 KB Output is correct
28 Correct 3 ms 4992 KB Output is correct
29 Correct 4 ms 4992 KB Output is correct
30 Correct 4 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 4 ms 4992 KB Output is correct
33 Correct 4 ms 4992 KB Output is correct
34 Correct 4 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 4 ms 4992 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 17016 KB Output is correct
2 Correct 101 ms 16632 KB Output is correct
3 Correct 61 ms 14584 KB Output is correct
4 Correct 14 ms 6816 KB Output is correct
5 Correct 12 ms 6016 KB Output is correct
6 Correct 22 ms 7672 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 49 ms 10104 KB Output is correct
9 Correct 60 ms 12664 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 94 ms 13688 KB Output is correct
12 Correct 110 ms 15352 KB Output is correct
13 Correct 5 ms 5120 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 3 ms 4992 KB Output is correct
26 Correct 3 ms 4992 KB Output is correct
27 Correct 4 ms 4992 KB Output is correct
28 Correct 3 ms 4992 KB Output is correct
29 Correct 4 ms 4992 KB Output is correct
30 Correct 4 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 4 ms 4992 KB Output is correct
33 Correct 4 ms 4992 KB Output is correct
34 Correct 4 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 4 ms 4992 KB Output is correct
39 Correct 98 ms 16964 KB Output is correct
40 Correct 94 ms 16632 KB Output is correct
41 Correct 72 ms 14584 KB Output is correct
42 Correct 14 ms 6784 KB Output is correct
43 Correct 4 ms 4992 KB Output is correct
44 Correct 4 ms 4992 KB Output is correct
45 Correct 4 ms 4992 KB Output is correct
46 Correct 4 ms 4992 KB Output is correct
47 Correct 4 ms 4992 KB Output is correct
48 Correct 3 ms 4992 KB Output is correct
49 Correct 3 ms 4992 KB Output is correct
50 Correct 4 ms 4992 KB Output is correct
51 Correct 4 ms 4992 KB Output is correct
52 Correct 4 ms 4992 KB Output is correct
53 Correct 4 ms 4992 KB Output is correct
54 Correct 5 ms 4992 KB Output is correct
55 Correct 4 ms 4992 KB Output is correct
56 Correct 5 ms 4992 KB Output is correct
57 Correct 128 ms 13432 KB Output is correct
58 Correct 132 ms 13560 KB Output is correct
59 Correct 132 ms 13720 KB Output is correct
60 Correct 129 ms 13560 KB Output is correct
61 Correct 133 ms 13700 KB Output is correct
62 Correct 129 ms 13816 KB Output is correct
63 Correct 127 ms 13652 KB Output is correct
64 Correct 126 ms 13688 KB Output is correct
65 Correct 129 ms 13688 KB Output is correct
66 Correct 135 ms 13688 KB Output is correct
67 Correct 132 ms 13560 KB Output is correct
68 Correct 135 ms 13560 KB Output is correct
69 Correct 137 ms 13560 KB Output is correct
70 Correct 143 ms 13560 KB Output is correct
71 Correct 4 ms 4992 KB Output is correct
72 Correct 6 ms 5248 KB Output is correct
73 Correct 6 ms 5248 KB Output is correct
74 Correct 6 ms 5248 KB Output is correct
75 Correct 6 ms 5248 KB Output is correct
76 Correct 6 ms 5248 KB Output is correct
77 Correct 6 ms 5248 KB Output is correct
78 Correct 6 ms 5248 KB Output is correct
79 Correct 6 ms 5248 KB Output is correct
80 Correct 149 ms 13564 KB Output is correct
81 Correct 132 ms 13560 KB Output is correct
82 Correct 128 ms 13732 KB Output is correct
83 Correct 128 ms 13688 KB Output is correct
84 Correct 5 ms 5248 KB Output is correct
85 Correct 5 ms 5248 KB Output is correct
86 Correct 5 ms 5248 KB Output is correct
87 Correct 5 ms 5248 KB Output is correct
88 Correct 5 ms 5248 KB Output is correct
89 Correct 6 ms 5248 KB Output is correct
90 Correct 6 ms 5308 KB Output is correct
91 Correct 6 ms 5248 KB Output is correct
92 Correct 6 ms 5248 KB Output is correct
93 Correct 5 ms 5248 KB Output is correct
94 Correct 4 ms 4992 KB Output is correct
95 Correct 4 ms 4992 KB Output is correct
96 Correct 4 ms 4992 KB Output is correct
97 Correct 4 ms 5120 KB Output is correct
98 Correct 4 ms 5120 KB Output is correct
99 Correct 4 ms 4992 KB Output is correct
100 Correct 3 ms 4992 KB Output is correct
101 Correct 4 ms 4992 KB Output is correct
102 Correct 4 ms 4992 KB Output is correct
103 Correct 4 ms 4992 KB Output is correct
104 Correct 12 ms 6144 KB Output is correct
105 Correct 22 ms 7672 KB Output is correct
106 Correct 4 ms 5120 KB Output is correct
107 Correct 43 ms 9984 KB Output is correct
108 Correct 57 ms 12664 KB Output is correct
109 Correct 4 ms 5120 KB Output is correct
110 Correct 92 ms 13688 KB Output is correct
111 Correct 108 ms 15224 KB Output is correct
112 Correct 4 ms 5120 KB Output is correct
113 Correct 198 ms 22136 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 11000 KB Output is correct
2 Incorrect 49 ms 10996 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 17016 KB Output is correct
2 Correct 101 ms 16632 KB Output is correct
3 Correct 61 ms 14584 KB Output is correct
4 Correct 14 ms 6816 KB Output is correct
5 Correct 12 ms 6016 KB Output is correct
6 Correct 22 ms 7672 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 49 ms 10104 KB Output is correct
9 Correct 60 ms 12664 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 94 ms 13688 KB Output is correct
12 Correct 110 ms 15352 KB Output is correct
13 Correct 5 ms 5120 KB Output is correct
14 Correct 4 ms 5120 KB Output is correct
15 Correct 5 ms 5248 KB Output is correct
16 Correct 6 ms 5248 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 5 ms 5248 KB Output is correct
19 Correct 5 ms 5248 KB Output is correct
20 Incorrect 4 ms 5120 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 17016 KB Output is correct
2 Correct 101 ms 16632 KB Output is correct
3 Correct 61 ms 14584 KB Output is correct
4 Correct 14 ms 6816 KB Output is correct
5 Correct 12 ms 6016 KB Output is correct
6 Correct 22 ms 7672 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 49 ms 10104 KB Output is correct
9 Correct 60 ms 12664 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 94 ms 13688 KB Output is correct
12 Correct 110 ms 15352 KB Output is correct
13 Correct 5 ms 5120 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 3 ms 4992 KB Output is correct
26 Correct 3 ms 4992 KB Output is correct
27 Correct 4 ms 4992 KB Output is correct
28 Correct 3 ms 4992 KB Output is correct
29 Correct 4 ms 4992 KB Output is correct
30 Correct 4 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 4 ms 4992 KB Output is correct
33 Correct 4 ms 4992 KB Output is correct
34 Correct 4 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 4 ms 4992 KB Output is correct
39 Correct 98 ms 16964 KB Output is correct
40 Correct 94 ms 16632 KB Output is correct
41 Correct 72 ms 14584 KB Output is correct
42 Correct 14 ms 6784 KB Output is correct
43 Correct 4 ms 4992 KB Output is correct
44 Correct 4 ms 4992 KB Output is correct
45 Correct 4 ms 4992 KB Output is correct
46 Correct 4 ms 4992 KB Output is correct
47 Correct 4 ms 4992 KB Output is correct
48 Correct 3 ms 4992 KB Output is correct
49 Correct 3 ms 4992 KB Output is correct
50 Correct 4 ms 4992 KB Output is correct
51 Correct 4 ms 4992 KB Output is correct
52 Correct 4 ms 4992 KB Output is correct
53 Correct 4 ms 4992 KB Output is correct
54 Correct 5 ms 4992 KB Output is correct
55 Correct 4 ms 4992 KB Output is correct
56 Correct 5 ms 4992 KB Output is correct
57 Correct 128 ms 13432 KB Output is correct
58 Correct 132 ms 13560 KB Output is correct
59 Correct 132 ms 13720 KB Output is correct
60 Correct 129 ms 13560 KB Output is correct
61 Correct 133 ms 13700 KB Output is correct
62 Correct 129 ms 13816 KB Output is correct
63 Correct 127 ms 13652 KB Output is correct
64 Correct 126 ms 13688 KB Output is correct
65 Correct 129 ms 13688 KB Output is correct
66 Correct 135 ms 13688 KB Output is correct
67 Correct 132 ms 13560 KB Output is correct
68 Correct 135 ms 13560 KB Output is correct
69 Correct 137 ms 13560 KB Output is correct
70 Correct 143 ms 13560 KB Output is correct
71 Correct 4 ms 4992 KB Output is correct
72 Correct 6 ms 5248 KB Output is correct
73 Correct 6 ms 5248 KB Output is correct
74 Correct 6 ms 5248 KB Output is correct
75 Correct 6 ms 5248 KB Output is correct
76 Correct 6 ms 5248 KB Output is correct
77 Correct 6 ms 5248 KB Output is correct
78 Correct 6 ms 5248 KB Output is correct
79 Correct 6 ms 5248 KB Output is correct
80 Correct 149 ms 13564 KB Output is correct
81 Correct 132 ms 13560 KB Output is correct
82 Correct 128 ms 13732 KB Output is correct
83 Correct 128 ms 13688 KB Output is correct
84 Correct 5 ms 5248 KB Output is correct
85 Correct 5 ms 5248 KB Output is correct
86 Correct 5 ms 5248 KB Output is correct
87 Correct 5 ms 5248 KB Output is correct
88 Correct 5 ms 5248 KB Output is correct
89 Correct 6 ms 5248 KB Output is correct
90 Correct 6 ms 5308 KB Output is correct
91 Correct 6 ms 5248 KB Output is correct
92 Correct 6 ms 5248 KB Output is correct
93 Correct 5 ms 5248 KB Output is correct
94 Correct 4 ms 4992 KB Output is correct
95 Correct 4 ms 4992 KB Output is correct
96 Correct 4 ms 4992 KB Output is correct
97 Correct 4 ms 5120 KB Output is correct
98 Correct 4 ms 5120 KB Output is correct
99 Correct 4 ms 4992 KB Output is correct
100 Correct 3 ms 4992 KB Output is correct
101 Correct 4 ms 4992 KB Output is correct
102 Correct 4 ms 4992 KB Output is correct
103 Correct 4 ms 4992 KB Output is correct
104 Correct 12 ms 6144 KB Output is correct
105 Correct 22 ms 7672 KB Output is correct
106 Correct 4 ms 5120 KB Output is correct
107 Correct 43 ms 9984 KB Output is correct
108 Correct 57 ms 12664 KB Output is correct
109 Correct 4 ms 5120 KB Output is correct
110 Correct 92 ms 13688 KB Output is correct
111 Correct 108 ms 15224 KB Output is correct
112 Correct 4 ms 5120 KB Output is correct
113 Correct 198 ms 22136 KB Output is correct
114 Correct 49 ms 11000 KB Output is correct
115 Incorrect 49 ms 10996 KB Output isn't correct
116 Halted 0 ms 0 KB -