답안 #212216

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
212216	2020-03-22T14:05:12 Z	peuch	꿈 (IOI13_dreaming)	C++17	47 / 100	187 ms	22008 KB

dreaming

#include<bits/stdc++.h>
#include "dreaming.h"
using namespace std;
 
const int MAXN = 1e5 + 10; 
 
int marc[MAXN], dist[MAXN], longDist[2][MAXN];
int aux;
 
vector<int> ar[MAXN];
vector<int> wg[MAXN];
vector<int> group;
 
int dfs1(int cur);
int dfs2(int cur);
int dfs3(int cur);
 
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
	for(int i = 0; i < M; i++){
		ar[A[i]].push_back(B[i]);
		ar[B[i]].push_back(A[i]);
		wg[A[i]].push_back(T[i]);
		wg[B[i]].push_back(T[i]);
	}
	int ret = 0;
	for(int i = 0; i < N; i++){
		if(marc[i] == 3) continue;
		dist[i] = 0;
		aux = 0;
		int side1 = dfs1(i);
		longDist[0][side1] = 0;
		int side2 = dfs2(side1);
		ret = max(ret, longDist[0][side2]);
		// printf("group: %d ends = %d and %d with %d nodes\n", group.size(), side1, side2, aux);
		longDist[1][side2] = 0;
		group.push_back(dfs3(side2));
	}	
	// printf("%d\n", group.size());
	// for(int i = 0; i < group.size(); i++)
	// 	printf("%d ", group[i]);
	// printf("\n");
	int aux = group[0];
	for(int i = 1; i < group.size(); i++){
		ret = max(ret, group[i] + aux + L);
		aux = min(max(group[i], aux + L), max(aux, group[i] + L));
	}
    return ret;
}
 
int dfs1(int cur){
	marc[cur] = 1;
	aux++;
	int ret = cur;
	int auxRet = dist[cur];
	for(int i = 0; i < ar[cur].size(); i++){
		int viz = ar[cur][i];
		int len = wg[cur][i];
		if(marc[viz] == 1) continue;
		dist[viz] = dist[cur] + len;
		int dfsVal = dfs1(viz);
		if(dist[dfsVal] > auxRet) ret = dfsVal, auxRet = dist[dfsVal];
 	} 
 	return ret;
}
 
int dfs2(int cur){
	marc[cur] = 2;
	int ret = cur;
	int auxRet = longDist[0][cur];
	for(int i = 0; i < ar[cur].size(); i++){
		int viz = ar[cur][i];
		int len = wg[cur][i];
		if(marc[viz] == 2) continue;
		longDist[0][viz] = longDist[0][cur] + len;
		int dfsVal = dfs2(viz);
		if(longDist[0][dfsVal] > auxRet) ret = dfsVal, auxRet = longDist[0][dfsVal];
 	} 
 	return ret;
}
 
int dfs3(int cur){
	marc[cur] = 3;
	int ret = max(longDist[0][cur], longDist[1][cur]);
	for(int i = 0; i < ar[cur].size(); i++){
		int viz = ar[cur][i];
		int len = wg[cur][i];
		if(marc[viz] == 3) continue;
		longDist[1][viz] = longDist[1][cur] + len;
		ret = min(ret, dfs3(viz));
 	} 
 	// printf("%d max(%d %d) -> %d\n", cur, longDist[0][cur], longDist[1][cur], ret);
 	return ret;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:43:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 1; i < group.size(); i++){
                 ~~^~~~~~~~~~~~~~
dreaming.cpp: In function 'int dfs1(int)':
dreaming.cpp:55:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < ar[cur].size(); i++){
                 ~~^~~~~~~~~~~~~~~~
dreaming.cpp: In function 'int dfs2(int)':
dreaming.cpp:70:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < ar[cur].size(); i++){
                 ~~^~~~~~~~~~~~~~~~
dreaming.cpp: In function 'int dfs3(int)':
dreaming.cpp:84:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < ar[cur].size(); i++){
                 ~~^~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	89 ms	20216 KB	Output is correct
2	Correct	89 ms	20088 KB	Output is correct
3	Correct	57 ms	15224 KB	Output is correct
4	Correct	17 ms	7296 KB	Output is correct
5	Correct	15 ms	6400 KB	Output is correct
6	Correct	24 ms	8448 KB	Output is correct
7	Correct	7 ms	5120 KB	Output is correct
8	Correct	43 ms	10620 KB	Output is correct
9	Correct	61 ms	12792 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	93 ms	15480 KB	Output is correct
12	Correct	117 ms	17624 KB	Output is correct
13	Correct	8 ms	5120 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	89 ms	20216 KB	Output is correct
2	Correct	89 ms	20088 KB	Output is correct
3	Correct	57 ms	15224 KB	Output is correct
4	Correct	17 ms	7296 KB	Output is correct
5	Correct	15 ms	6400 KB	Output is correct
6	Correct	24 ms	8448 KB	Output is correct
7	Correct	7 ms	5120 KB	Output is correct
8	Correct	43 ms	10620 KB	Output is correct
9	Correct	61 ms	12792 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	93 ms	15480 KB	Output is correct
12	Correct	117 ms	17624 KB	Output is correct
13	Correct	8 ms	5120 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	5120 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct
19	Correct	9 ms	4992 KB	Output is correct
20	Correct	9 ms	4992 KB	Output is correct
21	Correct	7 ms	4992 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	4992 KB	Output is correct
24	Correct	7 ms	4992 KB	Output is correct
25	Correct	8 ms	5120 KB	Output is correct
26	Correct	7 ms	5120 KB	Output is correct
27	Correct	8 ms	5120 KB	Output is correct
28	Correct	7 ms	4992 KB	Output is correct
29	Correct	8 ms	5120 KB	Output is correct
30	Correct	8 ms	5120 KB	Output is correct
31	Correct	7 ms	4992 KB	Output is correct
32	Correct	7 ms	4992 KB	Output is correct
33	Correct	7 ms	4992 KB	Output is correct
34	Correct	7 ms	4992 KB	Output is correct
35	Correct	7 ms	4992 KB	Output is correct
36	Correct	8 ms	4992 KB	Output is correct
37	Correct	7 ms	4992 KB	Output is correct
38	Correct	8 ms	5120 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	89 ms	20216 KB	Output is correct
2	Correct	89 ms	20088 KB	Output is correct
3	Correct	57 ms	15224 KB	Output is correct
4	Correct	17 ms	7296 KB	Output is correct
5	Correct	15 ms	6400 KB	Output is correct
6	Correct	24 ms	8448 KB	Output is correct
7	Correct	7 ms	5120 KB	Output is correct
8	Correct	43 ms	10620 KB	Output is correct
9	Correct	61 ms	12792 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	93 ms	15480 KB	Output is correct
12	Correct	117 ms	17624 KB	Output is correct
13	Correct	8 ms	5120 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	5120 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct
19	Correct	9 ms	4992 KB	Output is correct
20	Correct	9 ms	4992 KB	Output is correct
21	Correct	7 ms	4992 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	4992 KB	Output is correct
24	Correct	7 ms	4992 KB	Output is correct
25	Correct	8 ms	5120 KB	Output is correct
26	Correct	7 ms	5120 KB	Output is correct
27	Correct	8 ms	5120 KB	Output is correct
28	Correct	7 ms	4992 KB	Output is correct
29	Correct	8 ms	5120 KB	Output is correct
30	Correct	8 ms	5120 KB	Output is correct
31	Correct	7 ms	4992 KB	Output is correct
32	Correct	7 ms	4992 KB	Output is correct
33	Correct	7 ms	4992 KB	Output is correct
34	Correct	7 ms	4992 KB	Output is correct
35	Correct	7 ms	4992 KB	Output is correct
36	Correct	8 ms	4992 KB	Output is correct
37	Correct	7 ms	4992 KB	Output is correct
38	Correct	8 ms	5120 KB	Output is correct
39	Correct	91 ms	20216 KB	Output is correct
40	Correct	90 ms	20216 KB	Output is correct
41	Correct	62 ms	15224 KB	Output is correct
42	Correct	17 ms	7296 KB	Output is correct
43	Correct	8 ms	5120 KB	Output is correct
44	Correct	7 ms	4992 KB	Output is correct
45	Correct	8 ms	4992 KB	Output is correct
46	Correct	7 ms	4992 KB	Output is correct
47	Correct	8 ms	4992 KB	Output is correct
48	Correct	7 ms	4992 KB	Output is correct
49	Correct	5 ms	4992 KB	Output is correct
50	Correct	7 ms	4992 KB	Output is correct
51	Correct	7 ms	4992 KB	Output is correct
52	Correct	7 ms	4992 KB	Output is correct
53	Correct	7 ms	4992 KB	Output is correct
54	Correct	8 ms	4992 KB	Output is correct
55	Correct	8 ms	4992 KB	Output is correct
56	Correct	7 ms	4992 KB	Output is correct
57	Correct	151 ms	15624 KB	Output is correct
58	Correct	187 ms	15356 KB	Output is correct
59	Correct	137 ms	15608 KB	Output is correct
60	Correct	142 ms	15480 KB	Output is correct
61	Correct	145 ms	15864 KB	Output is correct
62	Correct	133 ms	15864 KB	Output is correct
63	Correct	125 ms	15588 KB	Output is correct
64	Correct	128 ms	15480 KB	Output is correct
65	Correct	141 ms	15864 KB	Output is correct
66	Correct	135 ms	15864 KB	Output is correct
67	Correct	144 ms	15704 KB	Output is correct
68	Correct	136 ms	15480 KB	Output is correct
69	Correct	158 ms	15976 KB	Output is correct
70	Correct	142 ms	15864 KB	Output is correct
71	Correct	7 ms	4992 KB	Output is correct
72	Correct	9 ms	5376 KB	Output is correct
73	Correct	9 ms	5376 KB	Output is correct
74	Correct	9 ms	5376 KB	Output is correct
75	Correct	10 ms	5376 KB	Output is correct
76	Correct	9 ms	5376 KB	Output is correct
77	Correct	9 ms	5376 KB	Output is correct
78	Correct	9 ms	5376 KB	Output is correct
79	Correct	9 ms	5376 KB	Output is correct
80	Correct	139 ms	15480 KB	Output is correct
81	Correct	140 ms	15480 KB	Output is correct
82	Correct	173 ms	15916 KB	Output is correct
83	Correct	132 ms	15864 KB	Output is correct
84	Correct	8 ms	5248 KB	Output is correct
85	Correct	8 ms	5248 KB	Output is correct
86	Correct	9 ms	5248 KB	Output is correct
87	Correct	9 ms	5248 KB	Output is correct
88	Correct	9 ms	5376 KB	Output is correct
89	Correct	10 ms	5284 KB	Output is correct
90	Correct	9 ms	5244 KB	Output is correct
91	Correct	9 ms	5376 KB	Output is correct
92	Correct	9 ms	5376 KB	Output is correct
93	Correct	9 ms	5376 KB	Output is correct
94	Correct	7 ms	4992 KB	Output is correct
95	Correct	7 ms	4992 KB	Output is correct
96	Correct	7 ms	4992 KB	Output is correct
97	Correct	7 ms	4992 KB	Output is correct
98	Correct	7 ms	5120 KB	Output is correct
99	Correct	6 ms	5168 KB	Output is correct
100	Correct	7 ms	5120 KB	Output is correct
101	Correct	8 ms	5120 KB	Output is correct
102	Correct	8 ms	4992 KB	Output is correct
103	Correct	7 ms	4992 KB	Output is correct
104	Correct	20 ms	6400 KB	Output is correct
105	Correct	35 ms	8440 KB	Output is correct
106	Correct	8 ms	5120 KB	Output is correct
107	Correct	48 ms	10616 KB	Output is correct
108	Correct	59 ms	12792 KB	Output is correct
109	Correct	7 ms	5120 KB	Output is correct
110	Correct	100 ms	15396 KB	Output is correct
111	Correct	117 ms	17656 KB	Output is correct
112	Correct	8 ms	5120 KB	Output is correct
113	Correct	165 ms	22008 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	40 ms	11648 KB	Output is correct
2	Incorrect	40 ms	11640 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	89 ms	20216 KB	Output is correct
2	Correct	89 ms	20088 KB	Output is correct
3	Correct	57 ms	15224 KB	Output is correct
4	Correct	17 ms	7296 KB	Output is correct
5	Correct	15 ms	6400 KB	Output is correct
6	Correct	24 ms	8448 KB	Output is correct
7	Correct	7 ms	5120 KB	Output is correct
8	Correct	43 ms	10620 KB	Output is correct
9	Correct	61 ms	12792 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	93 ms	15480 KB	Output is correct
12	Correct	117 ms	17624 KB	Output is correct
13	Correct	8 ms	5120 KB	Output is correct
14	Correct	9 ms	5120 KB	Output is correct
15	Correct	9 ms	5248 KB	Output is correct
16	Correct	10 ms	5376 KB	Output is correct
17	Correct	8 ms	5120 KB	Output is correct
18	Correct	8 ms	5248 KB	Output is correct
19	Correct	11 ms	5376 KB	Output is correct
20	Correct	8 ms	5120 KB	Output is correct
21	Incorrect	9 ms	5248 KB	Output isn't correct
22	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	89 ms	20216 KB	Output is correct
2	Correct	89 ms	20088 KB	Output is correct
3	Correct	57 ms	15224 KB	Output is correct
4	Correct	17 ms	7296 KB	Output is correct
5	Correct	15 ms	6400 KB	Output is correct
6	Correct	24 ms	8448 KB	Output is correct
7	Correct	7 ms	5120 KB	Output is correct
8	Correct	43 ms	10620 KB	Output is correct
9	Correct	61 ms	12792 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	93 ms	15480 KB	Output is correct
12	Correct	117 ms	17624 KB	Output is correct
13	Correct	8 ms	5120 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	5120 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct
19	Correct	9 ms	4992 KB	Output is correct
20	Correct	9 ms	4992 KB	Output is correct
21	Correct	7 ms	4992 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	4992 KB	Output is correct
24	Correct	7 ms	4992 KB	Output is correct
25	Correct	8 ms	5120 KB	Output is correct
26	Correct	7 ms	5120 KB	Output is correct
27	Correct	8 ms	5120 KB	Output is correct
28	Correct	7 ms	4992 KB	Output is correct
29	Correct	8 ms	5120 KB	Output is correct
30	Correct	8 ms	5120 KB	Output is correct
31	Correct	7 ms	4992 KB	Output is correct
32	Correct	7 ms	4992 KB	Output is correct
33	Correct	7 ms	4992 KB	Output is correct
34	Correct	7 ms	4992 KB	Output is correct
35	Correct	7 ms	4992 KB	Output is correct
36	Correct	8 ms	4992 KB	Output is correct
37	Correct	7 ms	4992 KB	Output is correct
38	Correct	8 ms	5120 KB	Output is correct
39	Correct	91 ms	20216 KB	Output is correct
40	Correct	90 ms	20216 KB	Output is correct
41	Correct	62 ms	15224 KB	Output is correct
42	Correct	17 ms	7296 KB	Output is correct
43	Correct	8 ms	5120 KB	Output is correct
44	Correct	7 ms	4992 KB	Output is correct
45	Correct	8 ms	4992 KB	Output is correct
46	Correct	7 ms	4992 KB	Output is correct
47	Correct	8 ms	4992 KB	Output is correct
48	Correct	7 ms	4992 KB	Output is correct
49	Correct	5 ms	4992 KB	Output is correct
50	Correct	7 ms	4992 KB	Output is correct
51	Correct	7 ms	4992 KB	Output is correct
52	Correct	7 ms	4992 KB	Output is correct
53	Correct	7 ms	4992 KB	Output is correct
54	Correct	8 ms	4992 KB	Output is correct
55	Correct	8 ms	4992 KB	Output is correct
56	Correct	7 ms	4992 KB	Output is correct
57	Correct	151 ms	15624 KB	Output is correct
58	Correct	187 ms	15356 KB	Output is correct
59	Correct	137 ms	15608 KB	Output is correct
60	Correct	142 ms	15480 KB	Output is correct
61	Correct	145 ms	15864 KB	Output is correct
62	Correct	133 ms	15864 KB	Output is correct
63	Correct	125 ms	15588 KB	Output is correct
64	Correct	128 ms	15480 KB	Output is correct
65	Correct	141 ms	15864 KB	Output is correct
66	Correct	135 ms	15864 KB	Output is correct
67	Correct	144 ms	15704 KB	Output is correct
68	Correct	136 ms	15480 KB	Output is correct
69	Correct	158 ms	15976 KB	Output is correct
70	Correct	142 ms	15864 KB	Output is correct
71	Correct	7 ms	4992 KB	Output is correct
72	Correct	9 ms	5376 KB	Output is correct
73	Correct	9 ms	5376 KB	Output is correct
74	Correct	9 ms	5376 KB	Output is correct
75	Correct	10 ms	5376 KB	Output is correct
76	Correct	9 ms	5376 KB	Output is correct
77	Correct	9 ms	5376 KB	Output is correct
78	Correct	9 ms	5376 KB	Output is correct
79	Correct	9 ms	5376 KB	Output is correct
80	Correct	139 ms	15480 KB	Output is correct
81	Correct	140 ms	15480 KB	Output is correct
82	Correct	173 ms	15916 KB	Output is correct
83	Correct	132 ms	15864 KB	Output is correct
84	Correct	8 ms	5248 KB	Output is correct
85	Correct	8 ms	5248 KB	Output is correct
86	Correct	9 ms	5248 KB	Output is correct
87	Correct	9 ms	5248 KB	Output is correct
88	Correct	9 ms	5376 KB	Output is correct
89	Correct	10 ms	5284 KB	Output is correct
90	Correct	9 ms	5244 KB	Output is correct
91	Correct	9 ms	5376 KB	Output is correct
92	Correct	9 ms	5376 KB	Output is correct
93	Correct	9 ms	5376 KB	Output is correct
94	Correct	7 ms	4992 KB	Output is correct
95	Correct	7 ms	4992 KB	Output is correct
96	Correct	7 ms	4992 KB	Output is correct
97	Correct	7 ms	4992 KB	Output is correct
98	Correct	7 ms	5120 KB	Output is correct
99	Correct	6 ms	5168 KB	Output is correct
100	Correct	7 ms	5120 KB	Output is correct
101	Correct	8 ms	5120 KB	Output is correct
102	Correct	8 ms	4992 KB	Output is correct
103	Correct	7 ms	4992 KB	Output is correct
104	Correct	20 ms	6400 KB	Output is correct
105	Correct	35 ms	8440 KB	Output is correct
106	Correct	8 ms	5120 KB	Output is correct
107	Correct	48 ms	10616 KB	Output is correct
108	Correct	59 ms	12792 KB	Output is correct
109	Correct	7 ms	5120 KB	Output is correct
110	Correct	100 ms	15396 KB	Output is correct
111	Correct	117 ms	17656 KB	Output is correct
112	Correct	8 ms	5120 KB	Output is correct
113	Correct	165 ms	22008 KB	Output is correct
114	Correct	40 ms	11648 KB	Output is correct
115	Incorrect	40 ms	11640 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #212216

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