답안 #842911

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
842911	2023-09-03T13:16:10 Z	12345678	꿈 (IOI13_dreaming)	C++17	47 / 100	66 ms	30968 KB

dreaming

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

using namespace std;

const int nx=1e5+5;
int mx[nx], mxr[nx], nxt, mx1=INT_MAX, mx2=INT_MAX, ans;
bool vs[nx];
vector<vector<pair<int, int>>> d(nx);

void dfs(int u, int p)
{
    vs[u]=1;
    for (auto [v, w]:d[u])
    {
        if (v==p) continue;
        dfs(v, u);
        mx[u]=max(mx[u], mx[v]+w);
    }
}

void dfs2(int u, int p)
{
    vector<int> pf(d[u].size()+2), sf(d[u].size()+2);
    pf[0]=mxr[u];
    for (int i=d[u].size()-1; i>=0; i--)
    {
        sf[i+1]=sf[i+2];
        if (d[u][i].first==p) continue;
        sf[i+1]=max(sf[i+1], d[u][i].second+mx[d[u][i].first]);
    }
    for (int i=0; i<d[u].size(); i++)
    {
        pf[i+1]=pf[i];
        if (d[u][i].first==p) continue;
        pf[i+1]=max(pf[i+1], d[u][i].second+mx[d[u][i].first]);
        mxr[d[u][i].first]=max(pf[i], sf[i+2])+d[u][i].second;
    }
    for (auto [v, w]:d[u]) if (v!=p) dfs2(v, u);
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    for (int i=0; i<M; i++) d[A[i]].push_back({B[i], T[i]}), d[B[i]].push_back({A[i], T[i]});
    dfs(0, 0); dfs2(0, 0);
    for (int i=0; i<N; i++)
    {
        if (!vs[i]) nxt=i;
        else vs[i]=0, mx1=min(mx1, max(mx[i], mxr[i]));
    }
    dfs(nxt, nxt); dfs2(nxt, nxt);
    for (int i=0; i<N; i++) if (vs[i]) mx2=min(mx2, max(mx[i], mxr[i]));
    for (int i=0; i<N; i++) ans=max(ans, mx[i]+mxr[i]);
    return max(ans, mx1+mx2+L);
}

Compilation message

dreaming.cpp: In function 'void dfs2(int, int)':
dreaming.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (int i=0; i<d[u].size(); i++)
      |                   ~^~~~~~~~~~~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	18516 KB	Output is correct
2	Correct	40 ms	18768 KB	Output is correct
3	Correct	29 ms	18004 KB	Output is correct
4	Correct	10 ms	5212 KB	Output is correct
5	Correct	5 ms	4184 KB	Output is correct
6	Correct	10 ms	6488 KB	Output is correct
7	Correct	1 ms	2648 KB	Output is correct
8	Correct	23 ms	10472 KB	Output is correct
9	Correct	25 ms	14416 KB	Output is correct
10	Correct	2 ms	2904 KB	Output is correct
11	Correct	40 ms	14592 KB	Output is correct
12	Correct	41 ms	17100 KB	Output is correct
13	Correct	2 ms	2904 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2648 KB	Output is correct
2	Correct	2 ms	2648 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2648 KB	Output is correct
5	Correct	2 ms	2648 KB	Output is correct
6	Correct	2 ms	2652 KB	Output is correct
7	Correct	1 ms	2812 KB	Output is correct
8	Correct	1 ms	2652 KB	Output is correct
9	Correct	2 ms	2648 KB	Output is correct
10	Correct	2 ms	2648 KB	Output is correct
11	Correct	2 ms	2816 KB	Output is correct
12	Correct	1 ms	2648 KB	Output is correct
13	Correct	1 ms	2648 KB	Output is correct
14	Correct	1 ms	2652 KB	Output is correct
15	Correct	2 ms	2652 KB	Output is correct
16	Correct	2 ms	2648 KB	Output is correct
17	Correct	1 ms	2648 KB	Output is correct
18	Correct	1 ms	2648 KB	Output is correct
19	Correct	1 ms	2648 KB	Output is correct
20	Correct	1 ms	2648 KB	Output is correct
21	Correct	2 ms	2648 KB	Output is correct
22	Correct	2 ms	2808 KB	Output is correct
23	Correct	1 ms	2648 KB	Output is correct
24	Correct	1 ms	2648 KB	Output is correct
25	Correct	1 ms	2648 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	18516 KB	Output is correct
2	Correct	40 ms	18768 KB	Output is correct
3	Correct	29 ms	18004 KB	Output is correct
4	Correct	10 ms	5212 KB	Output is correct
5	Correct	5 ms	4184 KB	Output is correct
6	Correct	10 ms	6488 KB	Output is correct
7	Correct	1 ms	2648 KB	Output is correct
8	Correct	23 ms	10472 KB	Output is correct
9	Correct	25 ms	14416 KB	Output is correct
10	Correct	2 ms	2904 KB	Output is correct
11	Correct	40 ms	14592 KB	Output is correct
12	Correct	41 ms	17100 KB	Output is correct
13	Correct	2 ms	2904 KB	Output is correct
14	Correct	1 ms	2648 KB	Output is correct
15	Correct	2 ms	2648 KB	Output is correct
16	Correct	1 ms	2648 KB	Output is correct
17	Correct	1 ms	2648 KB	Output is correct
18	Correct	2 ms	2648 KB	Output is correct
19	Correct	2 ms	2652 KB	Output is correct
20	Correct	1 ms	2812 KB	Output is correct
21	Correct	1 ms	2652 KB	Output is correct
22	Correct	2 ms	2648 KB	Output is correct
23	Correct	2 ms	2648 KB	Output is correct
24	Correct	2 ms	2816 KB	Output is correct
25	Correct	1 ms	2648 KB	Output is correct
26	Correct	1 ms	2648 KB	Output is correct
27	Correct	1 ms	2652 KB	Output is correct
28	Correct	2 ms	2652 KB	Output is correct
29	Correct	2 ms	2648 KB	Output is correct
30	Correct	1 ms	2648 KB	Output is correct
31	Correct	1 ms	2648 KB	Output is correct
32	Correct	1 ms	2648 KB	Output is correct
33	Correct	1 ms	2648 KB	Output is correct
34	Correct	2 ms	2648 KB	Output is correct
35	Correct	2 ms	2808 KB	Output is correct
36	Correct	1 ms	2648 KB	Output is correct
37	Correct	1 ms	2648 KB	Output is correct
38	Correct	1 ms	2648 KB	Output is correct
39	Correct	49 ms	19660 KB	Output is correct
40	Correct	40 ms	18768 KB	Output is correct
41	Correct	30 ms	18004 KB	Output is correct
42	Correct	7 ms	5160 KB	Output is correct
43	Correct	1 ms	2648 KB	Output is correct
44	Correct	1 ms	2648 KB	Output is correct
45	Correct	2 ms	2652 KB	Output is correct
46	Correct	2 ms	2648 KB	Output is correct
47	Correct	1 ms	2648 KB	Output is correct
48	Correct	2 ms	2652 KB	Output is correct
49	Correct	1 ms	2648 KB	Output is correct
50	Correct	1 ms	2648 KB	Output is correct
51	Correct	2 ms	2648 KB	Output is correct
52	Correct	1 ms	2652 KB	Output is correct
53	Correct	1 ms	2652 KB	Output is correct
54	Correct	1 ms	2652 KB	Output is correct
55	Correct	1 ms	2648 KB	Output is correct
56	Correct	2 ms	2648 KB	Output is correct
57	Correct	40 ms	10064 KB	Output is correct
58	Correct	38 ms	10064 KB	Output is correct
59	Correct	44 ms	10076 KB	Output is correct
60	Correct	48 ms	10172 KB	Output is correct
61	Correct	41 ms	10088 KB	Output is correct
62	Correct	40 ms	10080 KB	Output is correct
63	Correct	38 ms	10064 KB	Output is correct
64	Correct	39 ms	9808 KB	Output is correct
65	Correct	40 ms	10140 KB	Output is correct
66	Correct	40 ms	10064 KB	Output is correct
67	Correct	39 ms	10064 KB	Output is correct
68	Correct	41 ms	10192 KB	Output is correct
69	Correct	44 ms	10324 KB	Output is correct
70	Correct	41 ms	10320 KB	Output is correct
71	Correct	1 ms	2648 KB	Output is correct
72	Correct	3 ms	2904 KB	Output is correct
73	Correct	2 ms	2904 KB	Output is correct
74	Correct	2 ms	2904 KB	Output is correct
75	Correct	3 ms	2904 KB	Output is correct
76	Correct	2 ms	3104 KB	Output is correct
77	Correct	2 ms	2904 KB	Output is correct
78	Correct	3 ms	2904 KB	Output is correct
79	Correct	2 ms	2908 KB	Output is correct
80	Correct	42 ms	10064 KB	Output is correct
81	Correct	41 ms	10188 KB	Output is correct
82	Correct	40 ms	10064 KB	Output is correct
83	Correct	41 ms	10064 KB	Output is correct
84	Correct	2 ms	2904 KB	Output is correct
85	Correct	2 ms	2904 KB	Output is correct
86	Correct	2 ms	2904 KB	Output is correct
87	Correct	2 ms	2904 KB	Output is correct
88	Correct	2 ms	2904 KB	Output is correct
89	Correct	2 ms	2908 KB	Output is correct
90	Correct	2 ms	2904 KB	Output is correct
91	Correct	3 ms	2904 KB	Output is correct
92	Correct	2 ms	2904 KB	Output is correct
93	Correct	3 ms	2904 KB	Output is correct
94	Correct	1 ms	2648 KB	Output is correct
95	Correct	1 ms	2648 KB	Output is correct
96	Correct	1 ms	2648 KB	Output is correct
97	Correct	1 ms	2648 KB	Output is correct
98	Correct	1 ms	2648 KB	Output is correct
99	Correct	2 ms	2648 KB	Output is correct
100	Correct	1 ms	2652 KB	Output is correct
101	Correct	1 ms	2648 KB	Output is correct
102	Correct	1 ms	2648 KB	Output is correct
103	Correct	1 ms	2652 KB	Output is correct
104	Correct	5 ms	4184 KB	Output is correct
105	Correct	10 ms	6488 KB	Output is correct
106	Correct	2 ms	2648 KB	Output is correct
107	Correct	20 ms	10584 KB	Output is correct
108	Correct	26 ms	14416 KB	Output is correct
109	Correct	2 ms	2904 KB	Output is correct
110	Correct	37 ms	14672 KB	Output is correct
111	Correct	38 ms	16980 KB	Output is correct
112	Correct	1 ms	2904 KB	Output is correct
113	Correct	66 ms	30968 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	12 ms	5208 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2648 KB	Output is correct
2	Correct	2 ms	2648 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2648 KB	Output is correct
5	Correct	2 ms	2648 KB	Output is correct
6	Correct	2 ms	2652 KB	Output is correct
7	Correct	1 ms	2812 KB	Output is correct
8	Correct	1 ms	2652 KB	Output is correct
9	Correct	2 ms	2648 KB	Output is correct
10	Correct	2 ms	2648 KB	Output is correct
11	Correct	2 ms	2816 KB	Output is correct
12	Correct	1 ms	2648 KB	Output is correct
13	Correct	1 ms	2648 KB	Output is correct
14	Correct	1 ms	2652 KB	Output is correct
15	Correct	2 ms	2652 KB	Output is correct
16	Correct	2 ms	2648 KB	Output is correct
17	Correct	1 ms	2648 KB	Output is correct
18	Correct	1 ms	2648 KB	Output is correct
19	Correct	1 ms	2648 KB	Output is correct
20	Correct	1 ms	2648 KB	Output is correct
21	Correct	2 ms	2648 KB	Output is correct
22	Correct	2 ms	2808 KB	Output is correct
23	Correct	1 ms	2648 KB	Output is correct
24	Correct	1 ms	2648 KB	Output is correct
25	Correct	1 ms	2648 KB	Output is correct
26	Incorrect	1 ms	2648 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	18516 KB	Output is correct
2	Correct	40 ms	18768 KB	Output is correct
3	Correct	29 ms	18004 KB	Output is correct
4	Correct	10 ms	5212 KB	Output is correct
5	Correct	5 ms	4184 KB	Output is correct
6	Correct	10 ms	6488 KB	Output is correct
7	Correct	1 ms	2648 KB	Output is correct
8	Correct	23 ms	10472 KB	Output is correct
9	Correct	25 ms	14416 KB	Output is correct
10	Correct	2 ms	2904 KB	Output is correct
11	Correct	40 ms	14592 KB	Output is correct
12	Correct	41 ms	17100 KB	Output is correct
13	Correct	2 ms	2904 KB	Output is correct
14	Correct	1 ms	2648 KB	Output is correct
15	Correct	2 ms	2648 KB	Output is correct
16	Correct	1 ms	2648 KB	Output is correct
17	Correct	1 ms	2648 KB	Output is correct
18	Correct	2 ms	2648 KB	Output is correct
19	Correct	2 ms	2652 KB	Output is correct
20	Correct	1 ms	2812 KB	Output is correct
21	Correct	1 ms	2652 KB	Output is correct
22	Correct	2 ms	2648 KB	Output is correct
23	Correct	2 ms	2648 KB	Output is correct
24	Correct	2 ms	2816 KB	Output is correct
25	Correct	1 ms	2648 KB	Output is correct
26	Correct	1 ms	2648 KB	Output is correct
27	Correct	1 ms	2652 KB	Output is correct
28	Correct	2 ms	2652 KB	Output is correct
29	Correct	2 ms	2648 KB	Output is correct
30	Correct	1 ms	2648 KB	Output is correct
31	Correct	1 ms	2648 KB	Output is correct
32	Correct	1 ms	2648 KB	Output is correct
33	Correct	1 ms	2648 KB	Output is correct
34	Correct	2 ms	2648 KB	Output is correct
35	Correct	2 ms	2808 KB	Output is correct
36	Correct	1 ms	2648 KB	Output is correct
37	Correct	1 ms	2648 KB	Output is correct
38	Correct	1 ms	2648 KB	Output is correct
39	Correct	49 ms	19660 KB	Output is correct
40	Correct	40 ms	18768 KB	Output is correct
41	Correct	30 ms	18004 KB	Output is correct
42	Correct	7 ms	5160 KB	Output is correct
43	Correct	1 ms	2648 KB	Output is correct
44	Correct	1 ms	2648 KB	Output is correct
45	Correct	2 ms	2652 KB	Output is correct
46	Correct	2 ms	2648 KB	Output is correct
47	Correct	1 ms	2648 KB	Output is correct
48	Correct	2 ms	2652 KB	Output is correct
49	Correct	1 ms	2648 KB	Output is correct
50	Correct	1 ms	2648 KB	Output is correct
51	Correct	2 ms	2648 KB	Output is correct
52	Correct	1 ms	2652 KB	Output is correct
53	Correct	1 ms	2652 KB	Output is correct
54	Correct	1 ms	2652 KB	Output is correct
55	Correct	1 ms	2648 KB	Output is correct
56	Correct	2 ms	2648 KB	Output is correct
57	Correct	40 ms	10064 KB	Output is correct
58	Correct	38 ms	10064 KB	Output is correct
59	Correct	44 ms	10076 KB	Output is correct
60	Correct	48 ms	10172 KB	Output is correct
61	Correct	41 ms	10088 KB	Output is correct
62	Correct	40 ms	10080 KB	Output is correct
63	Correct	38 ms	10064 KB	Output is correct
64	Correct	39 ms	9808 KB	Output is correct
65	Correct	40 ms	10140 KB	Output is correct
66	Correct	40 ms	10064 KB	Output is correct
67	Correct	39 ms	10064 KB	Output is correct
68	Correct	41 ms	10192 KB	Output is correct
69	Correct	44 ms	10324 KB	Output is correct
70	Correct	41 ms	10320 KB	Output is correct
71	Correct	1 ms	2648 KB	Output is correct
72	Correct	3 ms	2904 KB	Output is correct
73	Correct	2 ms	2904 KB	Output is correct
74	Correct	2 ms	2904 KB	Output is correct
75	Correct	3 ms	2904 KB	Output is correct
76	Correct	2 ms	3104 KB	Output is correct
77	Correct	2 ms	2904 KB	Output is correct
78	Correct	3 ms	2904 KB	Output is correct
79	Correct	2 ms	2908 KB	Output is correct
80	Correct	42 ms	10064 KB	Output is correct
81	Correct	41 ms	10188 KB	Output is correct
82	Correct	40 ms	10064 KB	Output is correct
83	Correct	41 ms	10064 KB	Output is correct
84	Correct	2 ms	2904 KB	Output is correct
85	Correct	2 ms	2904 KB	Output is correct
86	Correct	2 ms	2904 KB	Output is correct
87	Correct	2 ms	2904 KB	Output is correct
88	Correct	2 ms	2904 KB	Output is correct
89	Correct	2 ms	2908 KB	Output is correct
90	Correct	2 ms	2904 KB	Output is correct
91	Correct	3 ms	2904 KB	Output is correct
92	Correct	2 ms	2904 KB	Output is correct
93	Correct	3 ms	2904 KB	Output is correct
94	Correct	1 ms	2648 KB	Output is correct
95	Correct	1 ms	2648 KB	Output is correct
96	Correct	1 ms	2648 KB	Output is correct
97	Correct	1 ms	2648 KB	Output is correct
98	Correct	1 ms	2648 KB	Output is correct
99	Correct	2 ms	2648 KB	Output is correct
100	Correct	1 ms	2652 KB	Output is correct
101	Correct	1 ms	2648 KB	Output is correct
102	Correct	1 ms	2648 KB	Output is correct
103	Correct	1 ms	2652 KB	Output is correct
104	Correct	5 ms	4184 KB	Output is correct
105	Correct	10 ms	6488 KB	Output is correct
106	Correct	2 ms	2648 KB	Output is correct
107	Correct	20 ms	10584 KB	Output is correct
108	Correct	26 ms	14416 KB	Output is correct
109	Correct	2 ms	2904 KB	Output is correct
110	Correct	37 ms	14672 KB	Output is correct
111	Correct	38 ms	16980 KB	Output is correct
112	Correct	1 ms	2904 KB	Output is correct
113	Correct	66 ms	30968 KB	Output is correct
114	Incorrect	12 ms	5208 KB	Output isn't correct
115	Halted	0 ms	0 KB	-

답안 #842911

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