oj.uz

Submission #809153

# Submission time Handle Problem Language Result Execution time Memory
809153 2023-08-05T19:31:08 Z OAleksa Dreaming (IOI13_dreaming) C++14
47 / 100
 61 ms 15524 KB 
#include <bits/stdc++.h>
#include "dreaming.h"
 
#define f first
#define s second
using namespace std; 
const int maxn = 1e5 + 69;
vector<pair<int, int>> g[maxn];
vector<int> vis(maxn);
vector<int> d(maxn), par(maxn);
vector<int> t;
void dfs(int v, int p) {
	vis[v] = true;
	t.push_back(v);
	par[v] = p;
	for(auto u : g[v]) {
		if(u.f != p) {
			d[u.f] = d[v] + u.s;
			dfs(u.f, v);
		}
	}
}
 
int find_minmax(vector<int> &v, int dija)	{
	//v->cvorovi koji cine dijametar stabla
	int mn = 1e9, res = -1;
	for(auto x : v) {
		int y = max(d[x], dija - d[x]);
		if(mn >= y) {
			mn = y;
			res = x;
		}
	}
	return res;
}
 
 
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
  for(int i = 0;i < M;i++) {
  	g[A[i]].push_back({B[i], T[i]});
  	g[B[i]].push_back({A[i], T[i]});
  }
  vector<int> r;
 	for(int i = 0;i < N;i++) {
 		if(!vis[i]) {
 			t.clear();
 			dfs(i, -1);
 			int s, mx = 0;
 			for(auto x : t) {
 				if(d[x] >= mx) {
 					mx = d[x];
 					s = x;
 				}
 			}
 			t.clear();
 			d[s] = 0;
 			dfs(s, -1);
 			mx = 0;
 			for(auto x : t) {
 				if(d[x] >= mx) {
 					mx = d[x];
 					s = x;
 				}
 			}
 			vector<int> c;
 			while(s != -1) {
 				c.push_back(s);
 				s = par[s];
 			}
 			r.push_back(find_minmax(c, mx));
 		}
 	}
 	for(int i = 1;i < (int)r.size();i++) {
  	g[r[i]].push_back({r[i - 1], L});
  	g[r[i - 1]].push_back({r[i], L});
  }
  dfs(0, -1);
  int s, mx = 0;
	for(auto x : t) {
		if(d[x] >= mx) {
			mx = d[x];
			s = x;
		}
	}
	t.clear();
	d[s] = 0;
	dfs(s, -1);
	int ans = 0;
	for(int i = 0;i < N;i++)
		ans = max(ans, d[i]);
	return ans;
}
 
//  
// int main()
// {
	  // ios_base::sync_with_stdio(false);
	  // cin.tie(0);
	  // cout.tie(0);
	  // int tt = 1;
		// //cin >> tt;
	  // while(tt--) {
			// int n, m, l;
			// cin >> n >> m >> l;
			// int a[m], b[m], t[m];
			// for(int i = 0;i < m;i++) 
				// cin >> a[i] >> b[i] >> t[i];
			// cout << travelTime(n, m, l, a, b, t);
		// }
    // return 0;
// }

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:87:5: warning: 'second' may be used uninitialized in this function [-Wmaybe-uninitialized]
   87 |  dfs(s, -1);
      |  ~~~^~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 13076 KB Output is correct
2 Correct 36 ms 13128 KB Output is correct
3 Correct 25 ms 9844 KB Output is correct
4 Correct 8 ms 5204 KB Output is correct
5 Correct 6 ms 4636 KB Output is correct
6 Correct 11 ms 5804 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 20 ms 7092 KB Output is correct
9 Correct 33 ms 8552 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 34 ms 9712 KB Output is correct
12 Correct 41 ms 11468 KB Output is correct
13 Correct 2 ms 3924 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3796 KB Output is correct
2 Correct 2 ms 3796 KB Output is correct
3 Correct 2 ms 3796 KB Output is correct
4 Correct 2 ms 3796 KB Output is correct
5 Correct 2 ms 3796 KB Output is correct
6 Correct 2 ms 3796 KB Output is correct
7 Correct 2 ms 3848 KB Output is correct
8 Correct 2 ms 3796 KB Output is correct
9 Correct 2 ms 3796 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 2 ms 3848 KB Output is correct
12 Correct 2 ms 3796 KB Output is correct
13 Correct 2 ms 3796 KB Output is correct
14 Correct 2 ms 3796 KB Output is correct
15 Correct 2 ms 3796 KB Output is correct
16 Correct 2 ms 3852 KB Output is correct
17 Correct 2 ms 3796 KB Output is correct
18 Correct 2 ms 3796 KB Output is correct
19 Correct 3 ms 3796 KB Output is correct
20 Correct 2 ms 3852 KB Output is correct
21 Correct 2 ms 3796 KB Output is correct
22 Correct 2 ms 3844 KB Output is correct
23 Correct 2 ms 3796 KB Output is correct
24 Correct 2 ms 3796 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 13076 KB Output is correct
2 Correct 36 ms 13128 KB Output is correct
3 Correct 25 ms 9844 KB Output is correct
4 Correct 8 ms 5204 KB Output is correct
5 Correct 6 ms 4636 KB Output is correct
6 Correct 11 ms 5804 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 20 ms 7092 KB Output is correct
9 Correct 33 ms 8552 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 34 ms 9712 KB Output is correct
12 Correct 41 ms 11468 KB Output is correct
13 Correct 2 ms 3924 KB Output is correct
14 Correct 2 ms 3796 KB Output is correct
15 Correct 2 ms 3796 KB Output is correct
16 Correct 2 ms 3796 KB Output is correct
17 Correct 2 ms 3796 KB Output is correct
18 Correct 2 ms 3796 KB Output is correct
19 Correct 2 ms 3796 KB Output is correct
20 Correct 2 ms 3848 KB Output is correct
21 Correct 2 ms 3796 KB Output is correct
22 Correct 2 ms 3796 KB Output is correct
23 Correct 2 ms 3796 KB Output is correct
24 Correct 2 ms 3848 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct
26 Correct 2 ms 3796 KB Output is correct
27 Correct 2 ms 3796 KB Output is correct
28 Correct 2 ms 3796 KB Output is correct
29 Correct 2 ms 3852 KB Output is correct
30 Correct 2 ms 3796 KB Output is correct
31 Correct 2 ms 3796 KB Output is correct
32 Correct 3 ms 3796 KB Output is correct
33 Correct 2 ms 3852 KB Output is correct
34 Correct 2 ms 3796 KB Output is correct
35 Correct 2 ms 3844 KB Output is correct
36 Correct 2 ms 3796 KB Output is correct
37 Correct 2 ms 3796 KB Output is correct
38 Correct 2 ms 3796 KB Output is correct
39 Correct 51 ms 14412 KB Output is correct
40 Correct 42 ms 14280 KB Output is correct
41 Correct 25 ms 10752 KB Output is correct
42 Correct 7 ms 5332 KB Output is correct
43 Correct 2 ms 3796 KB Output is correct
44 Correct 2 ms 3796 KB Output is correct
45 Correct 2 ms 3796 KB Output is correct
46 Correct 2 ms 3796 KB Output is correct
47 Correct 2 ms 3796 KB Output is correct
48 Correct 2 ms 3796 KB Output is correct
49 Correct 2 ms 3796 KB Output is correct
50 Correct 2 ms 3796 KB Output is correct
51 Correct 2 ms 3796 KB Output is correct
52 Correct 3 ms 3796 KB Output is correct
53 Correct 2 ms 3848 KB Output is correct
54 Correct 2 ms 3796 KB Output is correct
55 Correct 2 ms 3796 KB Output is correct
56 Correct 2 ms 3796 KB Output is correct
57 Correct 45 ms 10888 KB Output is correct
58 Correct 61 ms 11500 KB Output is correct
59 Correct 47 ms 10848 KB Output is correct
60 Correct 60 ms 11416 KB Output is correct
61 Correct 44 ms 10988 KB Output is correct
62 Correct 47 ms 11468 KB Output is correct
63 Correct 41 ms 10580 KB Output is correct
64 Correct 42 ms 10632 KB Output is correct
65 Correct 43 ms 10960 KB Output is correct
66 Correct 45 ms 10892 KB Output is correct
67 Correct 47 ms 10860 KB Output is correct
68 Correct 48 ms 10824 KB Output is correct
69 Correct 48 ms 11700 KB Output is correct
70 Correct 61 ms 11588 KB Output is correct
71 Correct 2 ms 3796 KB Output is correct
72 Correct 3 ms 4000 KB Output is correct
73 Correct 3 ms 4052 KB Output is correct
74 Correct 3 ms 3988 KB Output is correct
75 Correct 3 ms 4052 KB Output is correct
76 Correct 3 ms 4052 KB Output is correct
77 Correct 3 ms 4052 KB Output is correct
78 Correct 3 ms 4052 KB Output is correct
79 Correct 3 ms 4052 KB Output is correct
80 Correct 46 ms 11332 KB Output is correct
81 Correct 46 ms 10880 KB Output is correct
82 Correct 45 ms 10900 KB Output is correct
83 Correct 45 ms 10944 KB Output is correct
84 Correct 2 ms 3924 KB Output is correct
85 Correct 3 ms 3924 KB Output is correct
86 Correct 2 ms 3924 KB Output is correct
87 Correct 3 ms 3992 KB Output is correct
88 Correct 3 ms 3924 KB Output is correct
89 Correct 2 ms 3924 KB Output is correct
90 Correct 3 ms 3924 KB Output is correct
91 Correct 3 ms 3992 KB Output is correct
92 Correct 3 ms 3996 KB Output is correct
93 Correct 3 ms 3992 KB Output is correct
94 Correct 2 ms 3848 KB Output is correct
95 Correct 2 ms 3852 KB Output is correct
96 Correct 2 ms 3796 KB Output is correct
97 Correct 2 ms 3796 KB Output is correct
98 Correct 2 ms 3796 KB Output is correct
99 Correct 2 ms 3796 KB Output is correct
100 Correct 2 ms 3796 KB Output is correct
101 Correct 2 ms 3796 KB Output is correct
102 Correct 2 ms 3848 KB Output is correct
103 Correct 2 ms 3796 KB Output is correct
104 Correct 6 ms 4752 KB Output is correct
105 Correct 11 ms 6236 KB Output is correct
106 Correct 2 ms 3848 KB Output is correct
107 Correct 20 ms 7676 KB Output is correct
108 Correct 25 ms 9068 KB Output is correct
109 Correct 2 ms 3796 KB Output is correct
110 Correct 35 ms 10848 KB Output is correct
111 Correct 40 ms 12684 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 57 ms 15524 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 11228 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3796 KB Output is correct
2 Correct 2 ms 3796 KB Output is correct
3 Correct 2 ms 3796 KB Output is correct
4 Correct 2 ms 3796 KB Output is correct
5 Correct 2 ms 3796 KB Output is correct
6 Correct 2 ms 3796 KB Output is correct
7 Correct 2 ms 3848 KB Output is correct
8 Correct 2 ms 3796 KB Output is correct
9 Correct 2 ms 3796 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 2 ms 3848 KB Output is correct
12 Correct 2 ms 3796 KB Output is correct
13 Correct 2 ms 3796 KB Output is correct
14 Correct 2 ms 3796 KB Output is correct
15 Correct 2 ms 3796 KB Output is correct
16 Correct 2 ms 3852 KB Output is correct
17 Correct 2 ms 3796 KB Output is correct
18 Correct 2 ms 3796 KB Output is correct
19 Correct 3 ms 3796 KB Output is correct
20 Correct 2 ms 3852 KB Output is correct
21 Correct 2 ms 3796 KB Output is correct
22 Correct 2 ms 3844 KB Output is correct
23 Correct 2 ms 3796 KB Output is correct
24 Correct 2 ms 3796 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct
26 Incorrect 2 ms 3924 KB Output isn't correct
27 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 13076 KB Output is correct
2 Correct 36 ms 13128 KB Output is correct
3 Correct 25 ms 9844 KB Output is correct
4 Correct 8 ms 5204 KB Output is correct
5 Correct 6 ms 4636 KB Output is correct
6 Correct 11 ms 5804 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 20 ms 7092 KB Output is correct
9 Correct 33 ms 8552 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 34 ms 9712 KB Output is correct
12 Correct 41 ms 11468 KB Output is correct
13 Correct 2 ms 3924 KB Output is correct
14 Correct 2 ms 3796 KB Output is correct
15 Correct 2 ms 3796 KB Output is correct
16 Correct 2 ms 3796 KB Output is correct
17 Correct 2 ms 3796 KB Output is correct
18 Correct 2 ms 3796 KB Output is correct
19 Correct 2 ms 3796 KB Output is correct
20 Correct 2 ms 3848 KB Output is correct
21 Correct 2 ms 3796 KB Output is correct
22 Correct 2 ms 3796 KB Output is correct
23 Correct 2 ms 3796 KB Output is correct
24 Correct 2 ms 3848 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct
26 Correct 2 ms 3796 KB Output is correct
27 Correct 2 ms 3796 KB Output is correct
28 Correct 2 ms 3796 KB Output is correct
29 Correct 2 ms 3852 KB Output is correct
30 Correct 2 ms 3796 KB Output is correct
31 Correct 2 ms 3796 KB Output is correct
32 Correct 3 ms 3796 KB Output is correct
33 Correct 2 ms 3852 KB Output is correct
34 Correct 2 ms 3796 KB Output is correct
35 Correct 2 ms 3844 KB Output is correct
36 Correct 2 ms 3796 KB Output is correct
37 Correct 2 ms 3796 KB Output is correct
38 Correct 2 ms 3796 KB Output is correct
39 Correct 51 ms 14412 KB Output is correct
40 Correct 42 ms 14280 KB Output is correct
41 Correct 25 ms 10752 KB Output is correct
42 Correct 7 ms 5332 KB Output is correct
43 Correct 2 ms 3796 KB Output is correct
44 Correct 2 ms 3796 KB Output is correct
45 Correct 2 ms 3796 KB Output is correct
46 Correct 2 ms 3796 KB Output is correct
47 Correct 2 ms 3796 KB Output is correct
48 Correct 2 ms 3796 KB Output is correct
49 Correct 2 ms 3796 KB Output is correct
50 Correct 2 ms 3796 KB Output is correct
51 Correct 2 ms 3796 KB Output is correct
52 Correct 3 ms 3796 KB Output is correct
53 Correct 2 ms 3848 KB Output is correct
54 Correct 2 ms 3796 KB Output is correct
55 Correct 2 ms 3796 KB Output is correct
56 Correct 2 ms 3796 KB Output is correct
57 Correct 45 ms 10888 KB Output is correct
58 Correct 61 ms 11500 KB Output is correct
59 Correct 47 ms 10848 KB Output is correct
60 Correct 60 ms 11416 KB Output is correct
61 Correct 44 ms 10988 KB Output is correct
62 Correct 47 ms 11468 KB Output is correct
63 Correct 41 ms 10580 KB Output is correct
64 Correct 42 ms 10632 KB Output is correct
65 Correct 43 ms 10960 KB Output is correct
66 Correct 45 ms 10892 KB Output is correct
67 Correct 47 ms 10860 KB Output is correct
68 Correct 48 ms 10824 KB Output is correct
69 Correct 48 ms 11700 KB Output is correct
70 Correct 61 ms 11588 KB Output is correct
71 Correct 2 ms 3796 KB Output is correct
72 Correct 3 ms 4000 KB Output is correct
73 Correct 3 ms 4052 KB Output is correct
74 Correct 3 ms 3988 KB Output is correct
75 Correct 3 ms 4052 KB Output is correct
76 Correct 3 ms 4052 KB Output is correct
77 Correct 3 ms 4052 KB Output is correct
78 Correct 3 ms 4052 KB Output is correct
79 Correct 3 ms 4052 KB Output is correct
80 Correct 46 ms 11332 KB Output is correct
81 Correct 46 ms 10880 KB Output is correct
82 Correct 45 ms 10900 KB Output is correct
83 Correct 45 ms 10944 KB Output is correct
84 Correct 2 ms 3924 KB Output is correct
85 Correct 3 ms 3924 KB Output is correct
86 Correct 2 ms 3924 KB Output is correct
87 Correct 3 ms 3992 KB Output is correct
88 Correct 3 ms 3924 KB Output is correct
89 Correct 2 ms 3924 KB Output is correct
90 Correct 3 ms 3924 KB Output is correct
91 Correct 3 ms 3992 KB Output is correct
92 Correct 3 ms 3996 KB Output is correct
93 Correct 3 ms 3992 KB Output is correct
94 Correct 2 ms 3848 KB Output is correct
95 Correct 2 ms 3852 KB Output is correct
96 Correct 2 ms 3796 KB Output is correct
97 Correct 2 ms 3796 KB Output is correct
98 Correct 2 ms 3796 KB Output is correct
99 Correct 2 ms 3796 KB Output is correct
100 Correct 2 ms 3796 KB Output is correct
101 Correct 2 ms 3796 KB Output is correct
102 Correct 2 ms 3848 KB Output is correct
103 Correct 2 ms 3796 KB Output is correct
104 Correct 6 ms 4752 KB Output is correct
105 Correct 11 ms 6236 KB Output is correct
106 Correct 2 ms 3848 KB Output is correct
107 Correct 20 ms 7676 KB Output is correct
108 Correct 25 ms 9068 KB Output is correct
109 Correct 2 ms 3796 KB Output is correct
110 Correct 35 ms 10848 KB Output is correct
111 Correct 40 ms 12684 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 57 ms 15524 KB Output is correct
114 Incorrect 24 ms 11228 KB Output isn't correct
115 Halted 0 ms 0 KB -