oj.uz

Submission #809160

# Submission time Handle Problem Language Result Execution time Memory
809160 2023-08-05T19:36:14 Z OAleksa Dreaming (IOI13_dreaming) C++14
47 / 100
 69 ms 13868 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));
 		}
 	}
 	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});
  }
  t.clear();
  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 42 ms 13156 KB Output is correct
2 Correct 44 ms 13080 KB Output is correct
3 Correct 27 ms 9788 KB Output is correct
4 Correct 9 ms 5200 KB Output is correct
5 Correct 6 ms 4564 KB Output is correct
6 Correct 12 ms 5860 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 27 ms 7212 KB Output is correct
9 Correct 28 ms 8336 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 38 ms 9752 KB Output is correct
12 Correct 42 ms 11480 KB Output is correct
13 Correct 3 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 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 3760 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 3 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 3 ms 3796 KB Output is correct
22 Correct 3 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 3 ms 3796 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 13156 KB Output is correct
2 Correct 44 ms 13080 KB Output is correct
3 Correct 27 ms 9788 KB Output is correct
4 Correct 9 ms 5200 KB Output is correct
5 Correct 6 ms 4564 KB Output is correct
6 Correct 12 ms 5860 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 27 ms 7212 KB Output is correct
9 Correct 28 ms 8336 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 38 ms 9752 KB Output is correct
12 Correct 42 ms 11480 KB Output is correct
13 Correct 3 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 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 3760 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 3 ms 3796 KB Output is correct
32 Correct 2 ms 3796 KB Output is correct
33 Correct 2 ms 3796 KB Output is correct
34 Correct 3 ms 3796 KB Output is correct
35 Correct 3 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 3 ms 3796 KB Output is correct
39 Correct 40 ms 13128 KB Output is correct
40 Correct 38 ms 13076 KB Output is correct
41 Correct 26 ms 9824 KB Output is correct
42 Correct 7 ms 5204 KB Output is correct
43 Correct 2 ms 3796 KB Output is correct
44 Correct 2 ms 3768 KB Output is correct
45 Correct 2 ms 3816 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 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 64 ms 9612 KB Output is correct
58 Correct 45 ms 9556 KB Output is correct
59 Correct 46 ms 9552 KB Output is correct
60 Correct 46 ms 9492 KB Output is correct
61 Correct 45 ms 9420 KB Output is correct
62 Correct 53 ms 9472 KB Output is correct
63 Correct 44 ms 9308 KB Output is correct
64 Correct 42 ms 9304 KB Output is correct
65 Correct 45 ms 9292 KB Output is correct
66 Correct 43 ms 9232 KB Output is correct
67 Correct 55 ms 9548 KB Output is correct
68 Correct 47 ms 9420 KB Output is correct
69 Correct 57 ms 9548 KB Output is correct
70 Correct 47 ms 9552 KB Output is correct
71 Correct 2 ms 3796 KB Output is correct
72 Correct 3 ms 3924 KB Output is correct
73 Correct 3 ms 3924 KB Output is correct
74 Correct 3 ms 3924 KB Output is correct
75 Correct 3 ms 3924 KB Output is correct
76 Correct 3 ms 3984 KB Output is correct
77 Correct 3 ms 4028 KB Output is correct
78 Correct 3 ms 3924 KB Output is correct
79 Correct 3 ms 3924 KB Output is correct
80 Correct 48 ms 9436 KB Output is correct
81 Correct 52 ms 9616 KB Output is correct
82 Correct 45 ms 9428 KB Output is correct
83 Correct 60 ms 9460 KB Output is correct
84 Correct 2 ms 3924 KB Output is correct
85 Correct 3 ms 3924 KB Output is correct
86 Correct 3 ms 3924 KB Output is correct
87 Correct 4 ms 3924 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 3924 KB Output is correct
92 Correct 2 ms 3924 KB Output is correct
93 Correct 3 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 3 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 4604 KB Output is correct
105 Correct 11 ms 5824 KB Output is correct
106 Correct 2 ms 3844 KB Output is correct
107 Correct 27 ms 7084 KB Output is correct
108 Correct 25 ms 8384 KB Output is correct
109 Correct 3 ms 3796 KB Output is correct
110 Correct 37 ms 9708 KB Output is correct
111 Correct 48 ms 11544 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 69 ms 13868 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 25 ms 11224 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 3760 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 3 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 3 ms 3796 KB Output is correct
22 Correct 3 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 3 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 42 ms 13156 KB Output is correct
2 Correct 44 ms 13080 KB Output is correct
3 Correct 27 ms 9788 KB Output is correct
4 Correct 9 ms 5200 KB Output is correct
5 Correct 6 ms 4564 KB Output is correct
6 Correct 12 ms 5860 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 27 ms 7212 KB Output is correct
9 Correct 28 ms 8336 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 38 ms 9752 KB Output is correct
12 Correct 42 ms 11480 KB Output is correct
13 Correct 3 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 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 3760 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 3 ms 3796 KB Output is correct
32 Correct 2 ms 3796 KB Output is correct
33 Correct 2 ms 3796 KB Output is correct
34 Correct 3 ms 3796 KB Output is correct
35 Correct 3 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 3 ms 3796 KB Output is correct
39 Correct 40 ms 13128 KB Output is correct
40 Correct 38 ms 13076 KB Output is correct
41 Correct 26 ms 9824 KB Output is correct
42 Correct 7 ms 5204 KB Output is correct
43 Correct 2 ms 3796 KB Output is correct
44 Correct 2 ms 3768 KB Output is correct
45 Correct 2 ms 3816 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 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 64 ms 9612 KB Output is correct
58 Correct 45 ms 9556 KB Output is correct
59 Correct 46 ms 9552 KB Output is correct
60 Correct 46 ms 9492 KB Output is correct
61 Correct 45 ms 9420 KB Output is correct
62 Correct 53 ms 9472 KB Output is correct
63 Correct 44 ms 9308 KB Output is correct
64 Correct 42 ms 9304 KB Output is correct
65 Correct 45 ms 9292 KB Output is correct
66 Correct 43 ms 9232 KB Output is correct
67 Correct 55 ms 9548 KB Output is correct
68 Correct 47 ms 9420 KB Output is correct
69 Correct 57 ms 9548 KB Output is correct
70 Correct 47 ms 9552 KB Output is correct
71 Correct 2 ms 3796 KB Output is correct
72 Correct 3 ms 3924 KB Output is correct
73 Correct 3 ms 3924 KB Output is correct
74 Correct 3 ms 3924 KB Output is correct
75 Correct 3 ms 3924 KB Output is correct
76 Correct 3 ms 3984 KB Output is correct
77 Correct 3 ms 4028 KB Output is correct
78 Correct 3 ms 3924 KB Output is correct
79 Correct 3 ms 3924 KB Output is correct
80 Correct 48 ms 9436 KB Output is correct
81 Correct 52 ms 9616 KB Output is correct
82 Correct 45 ms 9428 KB Output is correct
83 Correct 60 ms 9460 KB Output is correct
84 Correct 2 ms 3924 KB Output is correct
85 Correct 3 ms 3924 KB Output is correct
86 Correct 3 ms 3924 KB Output is correct
87 Correct 4 ms 3924 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 3924 KB Output is correct
92 Correct 2 ms 3924 KB Output is correct
93 Correct 3 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 3 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 4604 KB Output is correct
105 Correct 11 ms 5824 KB Output is correct
106 Correct 2 ms 3844 KB Output is correct
107 Correct 27 ms 7084 KB Output is correct
108 Correct 25 ms 8384 KB Output is correct
109 Correct 3 ms 3796 KB Output is correct
110 Correct 37 ms 9708 KB Output is correct
111 Correct 48 ms 11544 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 69 ms 13868 KB Output is correct
114 Incorrect 25 ms 11224 KB Output isn't correct
115 Halted 0 ms 0 KB -