답안 #97684 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
97684	2019-02-17T17:51:06 Z	MiricaMatei	꿈 (IOI13_dreaming)	C++14	47 / 100	93 ms	13220 KB

dreaming

#include "dreaming.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 100000;

int d[MAXN + 5];
int c1[MAXN + 5], c2[MAXN + 5];
int m1[MAXN + 5], m2[MAXN + 5];
int viz[MAXN + 5];

vector<pair<int, int> >G[MAXN + 5];

void dfs1(int node) {
  viz[node] = 1;
  for (auto it:G[node])
    if (!viz[it.first]) {
      dfs1(it.first);
      c1[node] = max(c1[node], c1[it.first] + it.second);
    }
}

int dfs2(int node, int cUp) {
  viz[node] = 2;
  d[node] = max(c1[node], cUp);
  int ans = d[node];
  m1[0] = 0;
  for (int i = 0; i < G[node].size(); ++i) {
    int u = G[node][i].first;
    if (viz[u] == 2)
      m1[i + 1] = m1[i];
    else
      m1[i + 1] = max(m1[i], c1[u] + G[node][i].second);
  }
  m2[G[node].size()] = 0;
  for (int i = G[node].size() - 1; i >= 0; --i) {
    int u = G[node][i].first;
    if (viz[u] == 2)
      m2[i] = m2[i + 1];
    else
      m2[i] = max(m2[i + 1], c1[u] + G[node][i].second);
  }
  for (int i = 0; i < G[node].size(); ++i) {
    int u = G[node][i].first;
    if (viz[u] != 2)
      c2[u] = max(m1[i], m2[i + 1]);
  }
  for (int i = 0; i < G[node].size(); ++i) {
    int u = G[node][i].first;
    if (viz[u] != 2)
      ans = min(ans, dfs2(u, max(cUp, c2[u]) + G[node][i].second));
  }
  return ans;
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
  for (int i = 0; i < M; ++i) {
    A[i]++;
    B[i]++;
    G[A[i]].push_back({B[i], T[i]});
    G[B[i]].push_back({A[i], T[i]});
  }

  int ans = 0, ll = 0;
  for (int i = 1; i <= N; ++i) {
    if (viz[i] == 0) {
      dfs1(i);
      int aux = dfs2(i, 0);
      if (i == 1) {
        ans = ll = aux;
      } else {
        ans = max(ans, ll + L + aux);
        ll = min(max(ll, L + aux), max(aux, ll + L));
      }
    }
  }

  for (int i = 1; i <= N; ++i)
    ans = max(ans, d[i]);

  return ans;
}

/*int x[MAXN], y[MAXN], z[MAXN];

int main() {
  freopen("date.in", "r", stdin);
  freopen("date.out", "w", stdout);
  int n, m, l;
  scanf("%d%d%d", &n, &m, &l);
  for (int i = 0; i < m; ++i)
    scanf("%d%d%d", &x[i], &y[i], &z[i]);
  printf("%d\n", travelTime(n, m, l, x, y, z));
}*/

Compilation message

dreaming.cpp: In function 'int dfs2(int, int)':
dreaming.cpp:29:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < G[node].size(); ++i) {
                   ~~^~~~~~~~~~~~~~~~
dreaming.cpp:44:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < G[node].size(); ++i) {
                   ~~^~~~~~~~~~~~~~~~
dreaming.cpp:49:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < G[node].size(); ++i) {
                   ~~^~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	60 ms	10488 KB	Output is correct
2	Correct	61 ms	10204 KB	Output is correct
3	Correct	41 ms	8568 KB	Output is correct
4	Correct	11 ms	3840 KB	Output is correct
5	Correct	10 ms	3456 KB	Output is correct
6	Correct	17 ms	4480 KB	Output is correct
7	Correct	4 ms	2816 KB	Output is correct
8	Correct	29 ms	6008 KB	Output is correct
9	Correct	37 ms	7416 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	52 ms	8440 KB	Output is correct
12	Correct	60 ms	9336 KB	Output is correct
13	Correct	4 ms	2812 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	60 ms	10488 KB	Output is correct
2	Correct	61 ms	10204 KB	Output is correct
3	Correct	41 ms	8568 KB	Output is correct
4	Correct	11 ms	3840 KB	Output is correct
5	Correct	10 ms	3456 KB	Output is correct
6	Correct	17 ms	4480 KB	Output is correct
7	Correct	4 ms	2816 KB	Output is correct
8	Correct	29 ms	6008 KB	Output is correct
9	Correct	37 ms	7416 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	52 ms	8440 KB	Output is correct
12	Correct	60 ms	9336 KB	Output is correct
13	Correct	4 ms	2812 KB	Output is correct
14	Correct	4 ms	2688 KB	Output is correct
15	Correct	4 ms	2688 KB	Output is correct
16	Correct	4 ms	2688 KB	Output is correct
17	Correct	4 ms	2688 KB	Output is correct
18	Correct	4 ms	2688 KB	Output is correct
19	Correct	4 ms	2688 KB	Output is correct
20	Correct	3 ms	2688 KB	Output is correct
21	Correct	4 ms	2688 KB	Output is correct
22	Correct	3 ms	2688 KB	Output is correct
23	Correct	4 ms	2688 KB	Output is correct
24	Correct	4 ms	2688 KB	Output is correct
25	Correct	4 ms	2688 KB	Output is correct
26	Correct	4 ms	2688 KB	Output is correct
27	Correct	4 ms	2688 KB	Output is correct
28	Correct	4 ms	2688 KB	Output is correct
29	Correct	4 ms	2688 KB	Output is correct
30	Correct	4 ms	2688 KB	Output is correct
31	Correct	4 ms	2688 KB	Output is correct
32	Correct	4 ms	2688 KB	Output is correct
33	Correct	4 ms	2688 KB	Output is correct
34	Correct	4 ms	2688 KB	Output is correct
35	Correct	4 ms	2688 KB	Output is correct
36	Correct	4 ms	2688 KB	Output is correct
37	Correct	4 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	60 ms	10488 KB	Output is correct
2	Correct	61 ms	10204 KB	Output is correct
3	Correct	41 ms	8568 KB	Output is correct
4	Correct	11 ms	3840 KB	Output is correct
5	Correct	10 ms	3456 KB	Output is correct
6	Correct	17 ms	4480 KB	Output is correct
7	Correct	4 ms	2816 KB	Output is correct
8	Correct	29 ms	6008 KB	Output is correct
9	Correct	37 ms	7416 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	52 ms	8440 KB	Output is correct
12	Correct	60 ms	9336 KB	Output is correct
13	Correct	4 ms	2812 KB	Output is correct
14	Correct	4 ms	2688 KB	Output is correct
15	Correct	4 ms	2688 KB	Output is correct
16	Correct	4 ms	2688 KB	Output is correct
17	Correct	4 ms	2688 KB	Output is correct
18	Correct	4 ms	2688 KB	Output is correct
19	Correct	4 ms	2688 KB	Output is correct
20	Correct	3 ms	2688 KB	Output is correct
21	Correct	4 ms	2688 KB	Output is correct
22	Correct	3 ms	2688 KB	Output is correct
23	Correct	4 ms	2688 KB	Output is correct
24	Correct	4 ms	2688 KB	Output is correct
25	Correct	4 ms	2688 KB	Output is correct
26	Correct	4 ms	2688 KB	Output is correct
27	Correct	4 ms	2688 KB	Output is correct
28	Correct	4 ms	2688 KB	Output is correct
29	Correct	4 ms	2688 KB	Output is correct
30	Correct	4 ms	2688 KB	Output is correct
31	Correct	4 ms	2688 KB	Output is correct
32	Correct	4 ms	2688 KB	Output is correct
33	Correct	4 ms	2688 KB	Output is correct
34	Correct	4 ms	2688 KB	Output is correct
35	Correct	4 ms	2688 KB	Output is correct
36	Correct	4 ms	2688 KB	Output is correct
37	Correct	4 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct
39	Correct	71 ms	10360 KB	Output is correct
40	Correct	53 ms	10232 KB	Output is correct
41	Correct	42 ms	8568 KB	Output is correct
42	Correct	11 ms	3840 KB	Output is correct
43	Correct	4 ms	2688 KB	Output is correct
44	Correct	4 ms	2688 KB	Output is correct
45	Correct	3 ms	2688 KB	Output is correct
46	Correct	4 ms	2688 KB	Output is correct
47	Correct	4 ms	2688 KB	Output is correct
48	Correct	4 ms	2688 KB	Output is correct
49	Correct	4 ms	2688 KB	Output is correct
50	Correct	4 ms	2688 KB	Output is correct
51	Correct	4 ms	2688 KB	Output is correct
52	Correct	4 ms	2688 KB	Output is correct
53	Correct	4 ms	2688 KB	Output is correct
54	Correct	3 ms	2688 KB	Output is correct
55	Correct	4 ms	2688 KB	Output is correct
56	Correct	4 ms	2688 KB	Output is correct
57	Correct	82 ms	9464 KB	Output is correct
58	Correct	72 ms	9336 KB	Output is correct
59	Correct	91 ms	9464 KB	Output is correct
60	Correct	88 ms	9464 KB	Output is correct
61	Correct	68 ms	9208 KB	Output is correct
62	Correct	73 ms	9208 KB	Output is correct
63	Correct	62 ms	9080 KB	Output is correct
64	Correct	65 ms	9080 KB	Output is correct
65	Correct	71 ms	9176 KB	Output is correct
66	Correct	72 ms	9080 KB	Output is correct
67	Correct	75 ms	9336 KB	Output is correct
68	Correct	69 ms	9336 KB	Output is correct
69	Correct	92 ms	9344 KB	Output is correct
70	Correct	88 ms	9464 KB	Output is correct
71	Correct	4 ms	2688 KB	Output is correct
72	Correct	5 ms	2944 KB	Output is correct
73	Correct	5 ms	2944 KB	Output is correct
74	Correct	4 ms	2944 KB	Output is correct
75	Correct	5 ms	2944 KB	Output is correct
76	Correct	5 ms	2944 KB	Output is correct
77	Correct	5 ms	2944 KB	Output is correct
78	Correct	6 ms	2944 KB	Output is correct
79	Correct	5 ms	2944 KB	Output is correct
80	Correct	81 ms	9308 KB	Output is correct
81	Correct	93 ms	9464 KB	Output is correct
82	Correct	69 ms	9208 KB	Output is correct
83	Correct	89 ms	9336 KB	Output is correct
84	Correct	5 ms	2816 KB	Output is correct
85	Correct	5 ms	2816 KB	Output is correct
86	Correct	4 ms	2816 KB	Output is correct
87	Correct	5 ms	2816 KB	Output is correct
88	Correct	6 ms	2944 KB	Output is correct
89	Correct	5 ms	2816 KB	Output is correct
90	Correct	5 ms	2816 KB	Output is correct
91	Correct	5 ms	2944 KB	Output is correct
92	Correct	5 ms	2816 KB	Output is correct
93	Correct	5 ms	2816 KB	Output is correct
94	Correct	4 ms	2688 KB	Output is correct
95	Correct	4 ms	2688 KB	Output is correct
96	Correct	3 ms	2688 KB	Output is correct
97	Correct	4 ms	2688 KB	Output is correct
98	Correct	3 ms	2688 KB	Output is correct
99	Correct	4 ms	2688 KB	Output is correct
100	Correct	4 ms	2684 KB	Output is correct
101	Correct	4 ms	2688 KB	Output is correct
102	Correct	4 ms	2688 KB	Output is correct
103	Correct	3 ms	2688 KB	Output is correct
104	Correct	9 ms	3456 KB	Output is correct
105	Correct	17 ms	4352 KB	Output is correct
106	Correct	4 ms	2688 KB	Output is correct
107	Correct	28 ms	5880 KB	Output is correct
108	Correct	35 ms	7544 KB	Output is correct
109	Correct	4 ms	2816 KB	Output is correct
110	Correct	51 ms	8440 KB	Output is correct
111	Correct	63 ms	9336 KB	Output is correct
112	Correct	4 ms	2816 KB	Output is correct
113	Correct	91 ms	13220 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	6528 KB	Output is correct
2	Incorrect	27 ms	6524 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	60 ms	10488 KB	Output is correct
2	Correct	61 ms	10204 KB	Output is correct
3	Correct	41 ms	8568 KB	Output is correct
4	Correct	11 ms	3840 KB	Output is correct
5	Correct	10 ms	3456 KB	Output is correct
6	Correct	17 ms	4480 KB	Output is correct
7	Correct	4 ms	2816 KB	Output is correct
8	Correct	29 ms	6008 KB	Output is correct
9	Correct	37 ms	7416 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	52 ms	8440 KB	Output is correct
12	Correct	60 ms	9336 KB	Output is correct
13	Correct	4 ms	2812 KB	Output is correct
14	Correct	4 ms	2816 KB	Output is correct
15	Correct	4 ms	2816 KB	Output is correct
16	Correct	5 ms	2944 KB	Output is correct
17	Correct	5 ms	2816 KB	Output is correct
18	Correct	4 ms	2816 KB	Output is correct
19	Correct	5 ms	2944 KB	Output is correct
20	Correct	5 ms	2816 KB	Output is correct
21	Incorrect	4 ms	2816 KB	Output isn't correct
22	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	60 ms	10488 KB	Output is correct
2	Correct	61 ms	10204 KB	Output is correct
3	Correct	41 ms	8568 KB	Output is correct
4	Correct	11 ms	3840 KB	Output is correct
5	Correct	10 ms	3456 KB	Output is correct
6	Correct	17 ms	4480 KB	Output is correct
7	Correct	4 ms	2816 KB	Output is correct
8	Correct	29 ms	6008 KB	Output is correct
9	Correct	37 ms	7416 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	52 ms	8440 KB	Output is correct
12	Correct	60 ms	9336 KB	Output is correct
13	Correct	4 ms	2812 KB	Output is correct
14	Correct	4 ms	2688 KB	Output is correct
15	Correct	4 ms	2688 KB	Output is correct
16	Correct	4 ms	2688 KB	Output is correct
17	Correct	4 ms	2688 KB	Output is correct
18	Correct	4 ms	2688 KB	Output is correct
19	Correct	4 ms	2688 KB	Output is correct
20	Correct	3 ms	2688 KB	Output is correct
21	Correct	4 ms	2688 KB	Output is correct
22	Correct	3 ms	2688 KB	Output is correct
23	Correct	4 ms	2688 KB	Output is correct
24	Correct	4 ms	2688 KB	Output is correct
25	Correct	4 ms	2688 KB	Output is correct
26	Correct	4 ms	2688 KB	Output is correct
27	Correct	4 ms	2688 KB	Output is correct
28	Correct	4 ms	2688 KB	Output is correct
29	Correct	4 ms	2688 KB	Output is correct
30	Correct	4 ms	2688 KB	Output is correct
31	Correct	4 ms	2688 KB	Output is correct
32	Correct	4 ms	2688 KB	Output is correct
33	Correct	4 ms	2688 KB	Output is correct
34	Correct	4 ms	2688 KB	Output is correct
35	Correct	4 ms	2688 KB	Output is correct
36	Correct	4 ms	2688 KB	Output is correct
37	Correct	4 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct
39	Correct	71 ms	10360 KB	Output is correct
40	Correct	53 ms	10232 KB	Output is correct
41	Correct	42 ms	8568 KB	Output is correct
42	Correct	11 ms	3840 KB	Output is correct
43	Correct	4 ms	2688 KB	Output is correct
44	Correct	4 ms	2688 KB	Output is correct
45	Correct	3 ms	2688 KB	Output is correct
46	Correct	4 ms	2688 KB	Output is correct
47	Correct	4 ms	2688 KB	Output is correct
48	Correct	4 ms	2688 KB	Output is correct
49	Correct	4 ms	2688 KB	Output is correct
50	Correct	4 ms	2688 KB	Output is correct
51	Correct	4 ms	2688 KB	Output is correct
52	Correct	4 ms	2688 KB	Output is correct
53	Correct	4 ms	2688 KB	Output is correct
54	Correct	3 ms	2688 KB	Output is correct
55	Correct	4 ms	2688 KB	Output is correct
56	Correct	4 ms	2688 KB	Output is correct
57	Correct	82 ms	9464 KB	Output is correct
58	Correct	72 ms	9336 KB	Output is correct
59	Correct	91 ms	9464 KB	Output is correct
60	Correct	88 ms	9464 KB	Output is correct
61	Correct	68 ms	9208 KB	Output is correct
62	Correct	73 ms	9208 KB	Output is correct
63	Correct	62 ms	9080 KB	Output is correct
64	Correct	65 ms	9080 KB	Output is correct
65	Correct	71 ms	9176 KB	Output is correct
66	Correct	72 ms	9080 KB	Output is correct
67	Correct	75 ms	9336 KB	Output is correct
68	Correct	69 ms	9336 KB	Output is correct
69	Correct	92 ms	9344 KB	Output is correct
70	Correct	88 ms	9464 KB	Output is correct
71	Correct	4 ms	2688 KB	Output is correct
72	Correct	5 ms	2944 KB	Output is correct
73	Correct	5 ms	2944 KB	Output is correct
74	Correct	4 ms	2944 KB	Output is correct
75	Correct	5 ms	2944 KB	Output is correct
76	Correct	5 ms	2944 KB	Output is correct
77	Correct	5 ms	2944 KB	Output is correct
78	Correct	6 ms	2944 KB	Output is correct
79	Correct	5 ms	2944 KB	Output is correct
80	Correct	81 ms	9308 KB	Output is correct
81	Correct	93 ms	9464 KB	Output is correct
82	Correct	69 ms	9208 KB	Output is correct
83	Correct	89 ms	9336 KB	Output is correct
84	Correct	5 ms	2816 KB	Output is correct
85	Correct	5 ms	2816 KB	Output is correct
86	Correct	4 ms	2816 KB	Output is correct
87	Correct	5 ms	2816 KB	Output is correct
88	Correct	6 ms	2944 KB	Output is correct
89	Correct	5 ms	2816 KB	Output is correct
90	Correct	5 ms	2816 KB	Output is correct
91	Correct	5 ms	2944 KB	Output is correct
92	Correct	5 ms	2816 KB	Output is correct
93	Correct	5 ms	2816 KB	Output is correct
94	Correct	4 ms	2688 KB	Output is correct
95	Correct	4 ms	2688 KB	Output is correct
96	Correct	3 ms	2688 KB	Output is correct
97	Correct	4 ms	2688 KB	Output is correct
98	Correct	3 ms	2688 KB	Output is correct
99	Correct	4 ms	2688 KB	Output is correct
100	Correct	4 ms	2684 KB	Output is correct
101	Correct	4 ms	2688 KB	Output is correct
102	Correct	4 ms	2688 KB	Output is correct
103	Correct	3 ms	2688 KB	Output is correct
104	Correct	9 ms	3456 KB	Output is correct
105	Correct	17 ms	4352 KB	Output is correct
106	Correct	4 ms	2688 KB	Output is correct
107	Correct	28 ms	5880 KB	Output is correct
108	Correct	35 ms	7544 KB	Output is correct
109	Correct	4 ms	2816 KB	Output is correct
110	Correct	51 ms	8440 KB	Output is correct
111	Correct	63 ms	9336 KB	Output is correct
112	Correct	4 ms	2816 KB	Output is correct
113	Correct	91 ms	13220 KB	Output is correct
114	Correct	34 ms	6528 KB	Output is correct
115	Incorrect	27 ms	6524 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #97684

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 18.0

Subtask #5 0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 18.0

Subtask #5
0 / 12.0

Subtask #6
0 / 23.0