oj.uz

답안 #809156

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
809156 2023-08-05T19:34:14 Z OAleksa 꿈 (IOI13_dreaming) C++14
47 / 100
 59 ms 13896 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));
 		}
 	}
 	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

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 13132 KB Output is correct
2 Correct 36 ms 13096 KB Output is correct
3 Correct 25 ms 9804 KB Output is correct
4 Correct 7 ms 5204 KB Output is correct
5 Correct 6 ms 4564 KB Output is correct
6 Correct 11 ms 5844 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 19 ms 7184 KB Output is correct
9 Correct 25 ms 8404 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 35 ms 9800 KB Output is correct
12 Correct 43 ms 11448 KB Output is correct
13 Correct 3 ms 3924 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 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 3816 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 3728 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 13132 KB Output is correct
2 Correct 36 ms 13096 KB Output is correct
3 Correct 25 ms 9804 KB Output is correct
4 Correct 7 ms 5204 KB Output is correct
5 Correct 6 ms 4564 KB Output is correct
6 Correct 11 ms 5844 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 19 ms 7184 KB Output is correct
9 Correct 25 ms 8404 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 35 ms 9800 KB Output is correct
12 Correct 43 ms 11448 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 3796 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct
26 Correct 2 ms 3816 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 2 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 3728 KB Output is correct
38 Correct 2 ms 3796 KB Output is correct
39 Correct 37 ms 13176 KB Output is correct
40 Correct 36 ms 13136 KB Output is correct
41 Correct 26 ms 9840 KB Output is correct
42 Correct 6 ms 5128 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 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 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 45 ms 9628 KB Output is correct
58 Correct 52 ms 10088 KB Output is correct
59 Correct 48 ms 9476 KB Output is correct
60 Correct 51 ms 10064 KB Output is correct
61 Correct 59 ms 9440 KB Output is correct
62 Correct 45 ms 9980 KB Output is correct
63 Correct 42 ms 9312 KB Output is correct
64 Correct 43 ms 9288 KB Output is correct
65 Correct 42 ms 9296 KB Output is correct
66 Correct 48 ms 9216 KB Output is correct
67 Correct 45 ms 9428 KB Output is correct
68 Correct 48 ms 9456 KB Output is correct
69 Correct 52 ms 10048 KB Output is correct
70 Correct 50 ms 10004 KB Output is correct
71 Correct 2 ms 3788 KB Output is correct
72 Correct 3 ms 4052 KB Output is correct
73 Correct 3 ms 4036 KB Output is correct
74 Correct 3 ms 3924 KB Output is correct
75 Correct 4 ms 3924 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 49 ms 10008 KB Output is correct
81 Correct 55 ms 9408 KB Output is correct
82 Correct 46 ms 9484 KB Output is correct
83 Correct 55 ms 9432 KB Output is correct
84 Correct 4 ms 3924 KB Output is correct
85 Correct 2 ms 3924 KB Output is correct
86 Correct 2 ms 3924 KB Output is correct
87 Correct 2 ms 3924 KB Output is correct
88 Correct 2 ms 3924 KB Output is correct
89 Correct 3 ms 3924 KB Output is correct
90 Correct 3 ms 3924 KB Output is correct
91 Correct 2 ms 3924 KB Output is correct
92 Correct 3 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 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 10 ms 5844 KB Output is correct
106 Correct 2 ms 3796 KB Output is correct
107 Correct 24 ms 7188 KB Output is correct
108 Correct 25 ms 8404 KB Output is correct
109 Correct 2 ms 3796 KB Output is correct
110 Correct 44 ms 9772 KB Output is correct
111 Correct 44 ms 11548 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 52 ms 13896 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 31 ms 11464 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 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 3816 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 3728 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

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 13132 KB Output is correct
2 Correct 36 ms 13096 KB Output is correct
3 Correct 25 ms 9804 KB Output is correct
4 Correct 7 ms 5204 KB Output is correct
5 Correct 6 ms 4564 KB Output is correct
6 Correct 11 ms 5844 KB Output is correct
7 Correct 2 ms 3796 KB Output is correct
8 Correct 19 ms 7184 KB Output is correct
9 Correct 25 ms 8404 KB Output is correct
10 Correct 2 ms 3796 KB Output is correct
11 Correct 35 ms 9800 KB Output is correct
12 Correct 43 ms 11448 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 3796 KB Output is correct
25 Correct 2 ms 3796 KB Output is correct
26 Correct 2 ms 3816 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 2 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 3728 KB Output is correct
38 Correct 2 ms 3796 KB Output is correct
39 Correct 37 ms 13176 KB Output is correct
40 Correct 36 ms 13136 KB Output is correct
41 Correct 26 ms 9840 KB Output is correct
42 Correct 6 ms 5128 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 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 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 45 ms 9628 KB Output is correct
58 Correct 52 ms 10088 KB Output is correct
59 Correct 48 ms 9476 KB Output is correct
60 Correct 51 ms 10064 KB Output is correct
61 Correct 59 ms 9440 KB Output is correct
62 Correct 45 ms 9980 KB Output is correct
63 Correct 42 ms 9312 KB Output is correct
64 Correct 43 ms 9288 KB Output is correct
65 Correct 42 ms 9296 KB Output is correct
66 Correct 48 ms 9216 KB Output is correct
67 Correct 45 ms 9428 KB Output is correct
68 Correct 48 ms 9456 KB Output is correct
69 Correct 52 ms 10048 KB Output is correct
70 Correct 50 ms 10004 KB Output is correct
71 Correct 2 ms 3788 KB Output is correct
72 Correct 3 ms 4052 KB Output is correct
73 Correct 3 ms 4036 KB Output is correct
74 Correct 3 ms 3924 KB Output is correct
75 Correct 4 ms 3924 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 49 ms 10008 KB Output is correct
81 Correct 55 ms 9408 KB Output is correct
82 Correct 46 ms 9484 KB Output is correct
83 Correct 55 ms 9432 KB Output is correct
84 Correct 4 ms 3924 KB Output is correct
85 Correct 2 ms 3924 KB Output is correct
86 Correct 2 ms 3924 KB Output is correct
87 Correct 2 ms 3924 KB Output is correct
88 Correct 2 ms 3924 KB Output is correct
89 Correct 3 ms 3924 KB Output is correct
90 Correct 3 ms 3924 KB Output is correct
91 Correct 2 ms 3924 KB Output is correct
92 Correct 3 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 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 10 ms 5844 KB Output is correct
106 Correct 2 ms 3796 KB Output is correct
107 Correct 24 ms 7188 KB Output is correct
108 Correct 25 ms 8404 KB Output is correct
109 Correct 2 ms 3796 KB Output is correct
110 Correct 44 ms 9772 KB Output is correct
111 Correct 44 ms 11548 KB Output is correct
112 Correct 2 ms 3924 KB Output is correct
113 Correct 52 ms 13896 KB Output is correct
114 Incorrect 31 ms 11464 KB Output isn't correct
115 Halted 0 ms 0 KB -