oj.uz

Submission #809157

# Submission time Handle Problem Language Result Execution time Memory
809157 2023-08-05T19:35:19 Z OAleksa Dreaming (IOI13_dreaming) C++14
47 / 100
 53 ms 13900 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 = -1, mx = -1;
 			for(auto x : t) {
 				if(d[x] >= mx) {
 					mx = d[x];
 					s = x;
 				}
 			}
 			t.clear();
 			d[s] = 0;
 			dfs(s, -1);
 			mx = -1;
 			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));
 		}
 	}
 	reverse(r.begin(), r.end());
 	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:88:5: warning: 'second' may be used uninitialized in this function [-Wmaybe-uninitialized]
   88 |  dfs(s, -1);
      |  ~~~^~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 13132 KB Output is correct
2 Correct 36 ms 13108 KB Output is correct
3 Correct 23 ms 9808 KB Output is correct
4 Correct 6 ms 5204 KB Output is correct
5 Correct 6 ms 4588 KB Output is correct
6 Correct 11 ms 5844 KB Output is correct
7 Correct 3 ms 3796 KB Output is correct
8 Correct 20 ms 7092 KB Output is correct
9 Correct 24 ms 8404 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 36 ms 9808 KB Output is correct
12 Correct 41 ms 11568 KB Output is correct
13 Correct 2 ms 3796 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 3796 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 3796 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 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 3 ms 3796 KB Output is correct
20 Correct 2 ms 3796 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 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 35 ms 13132 KB Output is correct
2 Correct 36 ms 13108 KB Output is correct
3 Correct 23 ms 9808 KB Output is correct
4 Correct 6 ms 5204 KB Output is correct
5 Correct 6 ms 4588 KB Output is correct
6 Correct 11 ms 5844 KB Output is correct
7 Correct 3 ms 3796 KB Output is correct
8 Correct 20 ms 7092 KB Output is correct
9 Correct 24 ms 8404 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 36 ms 9808 KB Output is correct
12 Correct 41 ms 11568 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 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 3796 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 3796 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 3796 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 3796 KB Output is correct
34 Correct 2 ms 3796 KB Output is correct
35 Correct 2 ms 3796 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 44 ms 13048 KB Output is correct
40 Correct 37 ms 13032 KB Output is correct
41 Correct 32 ms 9832 KB Output is correct
42 Correct 11 ms 5204 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 3 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 2 ms 3796 KB Output is correct
53 Correct 2 ms 3796 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 44 ms 9588 KB Output is correct
58 Correct 45 ms 10100 KB Output is correct
59 Correct 53 ms 9416 KB Output is correct
60 Correct 47 ms 9992 KB Output is correct
61 Correct 44 ms 9392 KB Output is correct
62 Correct 44 ms 9940 KB Output is correct
63 Correct 42 ms 9300 KB Output is correct
64 Correct 41 ms 9304 KB Output is correct
65 Correct 42 ms 9240 KB Output is correct
66 Correct 42 ms 9236 KB Output is correct
67 Correct 45 ms 9448 KB Output is correct
68 Correct 46 ms 9416 KB Output is correct
69 Correct 52 ms 10084 KB Output is correct
70 Correct 47 ms 10044 KB Output is correct
71 Correct 2 ms 3796 KB Output is correct
72 Correct 3 ms 4052 KB Output is correct
73 Correct 3 ms 3924 KB Output is correct
74 Correct 4 ms 3924 KB Output is correct
75 Correct 3 ms 4052 KB Output is correct
76 Correct 3 ms 3924 KB Output is correct
77 Correct 3 ms 3924 KB Output is correct
78 Correct 3 ms 4052 KB Output is correct
79 Correct 3 ms 3924 KB Output is correct
80 Correct 44 ms 9924 KB Output is correct
81 Correct 46 ms 9476 KB Output is correct
82 Correct 44 ms 9388 KB Output is correct
83 Correct 45 ms 9472 KB Output is correct
84 Correct 2 ms 3924 KB Output is correct
85 Correct 2 ms 3924 KB Output is correct
86 Correct 2 ms 3908 KB Output is correct
87 Correct 2 ms 3888 KB Output is correct
88 Correct 3 ms 3924 KB Output is correct
89 Correct 2 ms 3924 KB Output is correct
90 Correct 2 ms 3924 KB Output is correct
91 Correct 3 ms 3924 KB Output is correct
92 Correct 2 ms 3924 KB Output is correct
93 Correct 2 ms 3924 KB Output is correct
94 Correct 2 ms 3796 KB Output is correct
95 Correct 2 ms 3796 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 3796 KB Output is correct
103 Correct 2 ms 3796 KB Output is correct
104 Correct 6 ms 4564 KB Output is correct
105 Correct 11 ms 5844 KB Output is correct
106 Correct 2 ms 3796 KB Output is correct
107 Correct 23 ms 7128 KB Output is correct
108 Correct 24 ms 8404 KB Output is correct
109 Correct 2 ms 3796 KB Output is correct
110 Correct 35 ms 9800 KB Output is correct
111 Correct 39 ms 11560 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 53 ms 13900 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 11400 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 3796 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 3796 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 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 3 ms 3796 KB Output is correct
20 Correct 2 ms 3796 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 3796 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct
26 Incorrect 2 ms 3796 KB Output isn't correct
27 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 13132 KB Output is correct
2 Correct 36 ms 13108 KB Output is correct
3 Correct 23 ms 9808 KB Output is correct
4 Correct 6 ms 5204 KB Output is correct
5 Correct 6 ms 4588 KB Output is correct
6 Correct 11 ms 5844 KB Output is correct
7 Correct 3 ms 3796 KB Output is correct
8 Correct 20 ms 7092 KB Output is correct
9 Correct 24 ms 8404 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 36 ms 9808 KB Output is correct
12 Correct 41 ms 11568 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 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 3796 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 3796 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 3796 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 3796 KB Output is correct
34 Correct 2 ms 3796 KB Output is correct
35 Correct 2 ms 3796 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 44 ms 13048 KB Output is correct
40 Correct 37 ms 13032 KB Output is correct
41 Correct 32 ms 9832 KB Output is correct
42 Correct 11 ms 5204 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 3 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 2 ms 3796 KB Output is correct
53 Correct 2 ms 3796 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 44 ms 9588 KB Output is correct
58 Correct 45 ms 10100 KB Output is correct
59 Correct 53 ms 9416 KB Output is correct
60 Correct 47 ms 9992 KB Output is correct
61 Correct 44 ms 9392 KB Output is correct
62 Correct 44 ms 9940 KB Output is correct
63 Correct 42 ms 9300 KB Output is correct
64 Correct 41 ms 9304 KB Output is correct
65 Correct 42 ms 9240 KB Output is correct
66 Correct 42 ms 9236 KB Output is correct
67 Correct 45 ms 9448 KB Output is correct
68 Correct 46 ms 9416 KB Output is correct
69 Correct 52 ms 10084 KB Output is correct
70 Correct 47 ms 10044 KB Output is correct
71 Correct 2 ms 3796 KB Output is correct
72 Correct 3 ms 4052 KB Output is correct
73 Correct 3 ms 3924 KB Output is correct
74 Correct 4 ms 3924 KB Output is correct
75 Correct 3 ms 4052 KB Output is correct
76 Correct 3 ms 3924 KB Output is correct
77 Correct 3 ms 3924 KB Output is correct
78 Correct 3 ms 4052 KB Output is correct
79 Correct 3 ms 3924 KB Output is correct
80 Correct 44 ms 9924 KB Output is correct
81 Correct 46 ms 9476 KB Output is correct
82 Correct 44 ms 9388 KB Output is correct
83 Correct 45 ms 9472 KB Output is correct
84 Correct 2 ms 3924 KB Output is correct
85 Correct 2 ms 3924 KB Output is correct
86 Correct 2 ms 3908 KB Output is correct
87 Correct 2 ms 3888 KB Output is correct
88 Correct 3 ms 3924 KB Output is correct
89 Correct 2 ms 3924 KB Output is correct
90 Correct 2 ms 3924 KB Output is correct
91 Correct 3 ms 3924 KB Output is correct
92 Correct 2 ms 3924 KB Output is correct
93 Correct 2 ms 3924 KB Output is correct
94 Correct 2 ms 3796 KB Output is correct
95 Correct 2 ms 3796 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 3796 KB Output is correct
103 Correct 2 ms 3796 KB Output is correct
104 Correct 6 ms 4564 KB Output is correct
105 Correct 11 ms 5844 KB Output is correct
106 Correct 2 ms 3796 KB Output is correct
107 Correct 23 ms 7128 KB Output is correct
108 Correct 24 ms 8404 KB Output is correct
109 Correct 2 ms 3796 KB Output is correct
110 Correct 35 ms 9800 KB Output is correct
111 Correct 39 ms 11560 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 53 ms 13900 KB Output is correct
114 Incorrect 24 ms 11400 KB Output isn't correct
115 Halted 0 ms 0 KB -