답안 #97577 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
97577	2019-02-17T09:10:35 Z	georgerapeanu	꿈 (IOI13_dreaming)	C++11	54 / 100	182 ms	15228 KB

dreaming

#include "dreaming.h"
#include <vector>
#include <algorithm>
#include <cstdio>
 
using namespace std;
 
const int NMAX = 1e5;
 
pair<int,int> link[NMAX + 5];
 
vector< pair<int,int> > graph[NMAX + 5];
 
bool viz[NMAX + 5];
 
struct data_t{
    int best_dist;
    int node;
};
 
 
data_t dfs(int nod,int tata){
    viz[nod] = true;
    data_t ans;
    ans.node = nod;
    ans.best_dist = 0;
 
    link[nod] = {-1,-1};
 
    for(auto it:graph[nod]){
        if(it.first == tata){
            continue;
        }
        data_t tmp = dfs(it.first,nod);
        if(ans.best_dist <= tmp.best_dist + it.second){
            ans.best_dist = tmp.best_dist + it.second;
            ans.node = tmp.node;
            link[nod] = it;
        }
    }
 
    return ans;
}
 
 
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    int ans = 0;
 
    for(int i = 0;i < M;i++){
        graph[A[i]].push_back({B[i],T[i]});
        graph[B[i]].push_back({A[i],T[i]});
    }
 
    vector<int> d;
 
    for(int i = 0;i < N;i++){
        if(viz[i]){
            continue;
        }
 
        data_t tmp = dfs(i,0);
        data_t aux = dfs(tmp.node,0);
 
        vector<int> diam;
        int len = 0;
        diam.push_back(0);
        for(int node = tmp.node;link[node].first != -1;node = link[node].first){
            diam.push_back(link[node].second);
            len += diam.back();
        }
 
        ans = max(ans,len);
 
        int best = 1 << 30;
        int pref = 0;
 
        for(int i = 0;i < (int)diam.size();i++){
            pref += diam[i];
            best = min(best,max(pref,len - pref));
        }
        
        d.push_back(best);
    }
 
    sort(d.begin(),d.end());
    reverse(d.begin(),d.end());

    int tmp = 1 << 30;
   
    if((int)d.size() >= 3){
        vector<int> I = {d[0],d[1],d[2]};

        sort(I.begin(),I.end());

        for(int i = 0;i < 6;i++){
            tmp = min(tmp,max(I[0] + I[1] + L,max(max(I[0],I[1]),min(I[0],I[1]) + L) + I[2] + L));
            next_permutation(I.begin(),I.end());
        }
    }
   
    else if((int)d.size() == 2){
        tmp = d[0] + d[1] + L;
    }

    else{
        tmp = 0;
    }

    ans = max(ans,tmp);

    return ans;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:62:16: warning: variable 'aux' set but not used [-Wunused-but-set-variable]
         data_t aux = dfs(tmp.node,0);
                ^~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	15228 KB	Output is correct
2	Correct	61 ms	15200 KB	Output is correct
3	Correct	40 ms	10872 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	10 ms	3712 KB	Output is correct
6	Correct	16 ms	5504 KB	Output is correct
7	Correct	4 ms	2688 KB	Output is correct
8	Correct	29 ms	6912 KB	Output is correct
9	Correct	39 ms	8828 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	55 ms	10364 KB	Output is correct
12	Correct	61 ms	12844 KB	Output is correct
13	Correct	4 ms	2816 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	15228 KB	Output is correct
2	Correct	61 ms	15200 KB	Output is correct
3	Correct	40 ms	10872 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	10 ms	3712 KB	Output is correct
6	Correct	16 ms	5504 KB	Output is correct
7	Correct	4 ms	2688 KB	Output is correct
8	Correct	29 ms	6912 KB	Output is correct
9	Correct	39 ms	8828 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	55 ms	10364 KB	Output is correct
12	Correct	61 ms	12844 KB	Output is correct
13	Correct	4 ms	2816 KB	Output is correct
14	Correct	3 ms	2688 KB	Output is correct
15	Correct	3 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	4 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	3 ms	2688 KB	Output is correct
26	Correct	3 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	3 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	3 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	3 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct

Subtask #3
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	15228 KB	Output is correct
2	Correct	61 ms	15200 KB	Output is correct
3	Correct	40 ms	10872 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	10 ms	3712 KB	Output is correct
6	Correct	16 ms	5504 KB	Output is correct
7	Correct	4 ms	2688 KB	Output is correct
8	Correct	29 ms	6912 KB	Output is correct
9	Correct	39 ms	8828 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	55 ms	10364 KB	Output is correct
12	Correct	61 ms	12844 KB	Output is correct
13	Correct	4 ms	2816 KB	Output is correct
14	Correct	3 ms	2688 KB	Output is correct
15	Correct	3 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	4 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	3 ms	2688 KB	Output is correct
26	Correct	3 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	3 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	3 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	3 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct
39	Correct	72 ms	15220 KB	Output is correct
40	Correct	71 ms	15212 KB	Output is correct
41	Correct	46 ms	10872 KB	Output is correct
42	Correct	12 ms	4608 KB	Output is correct
43	Correct	4 ms	2688 KB	Output is correct
44	Correct	5 ms	2688 KB	Output is correct
45	Correct	4 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	3 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	76 ms	8744 KB	Output is correct
58	Correct	72 ms	8696 KB	Output is correct
59	Correct	107 ms	8696 KB	Output is correct
60	Correct	81 ms	8824 KB	Output is correct
61	Correct	182 ms	8540 KB	Output is correct
62	Correct	81 ms	8568 KB	Output is correct
63	Correct	73 ms	8392 KB	Output is correct
64	Incorrect	61 ms	8312 KB	Output isn't correct
65	Halted	0 ms	0 KB	-

Subtask #4
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	6144 KB	Output is correct
2	Correct	34 ms	6272 KB	Output is correct
3	Correct	32 ms	6272 KB	Output is correct
4	Correct	37 ms	6144 KB	Output is correct
5	Correct	33 ms	6136 KB	Output is correct
6	Correct	35 ms	6648 KB	Output is correct
7	Correct	33 ms	6400 KB	Output is correct
8	Correct	35 ms	6216 KB	Output is correct
9	Correct	35 ms	6112 KB	Output is correct
10	Correct	33 ms	6396 KB	Output is correct
11	Correct	3 ms	2688 KB	Output is correct
12	Correct	11 ms	4220 KB	Output is correct
13	Correct	11 ms	4220 KB	Output is correct
14	Correct	11 ms	4092 KB	Output is correct
15	Correct	12 ms	4220 KB	Output is correct
16	Correct	11 ms	4092 KB	Output is correct
17	Correct	11 ms	4088 KB	Output is correct
18	Correct	11 ms	4220 KB	Output is correct
19	Correct	11 ms	4092 KB	Output is correct
20	Correct	3 ms	2688 KB	Output is correct
21	Correct	3 ms	2688 KB	Output is correct
22	Correct	4 ms	2816 KB	Output is correct
23	Correct	11 ms	4220 KB	Output is correct

Subtask #5
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	15228 KB	Output is correct
2	Correct	61 ms	15200 KB	Output is correct
3	Correct	40 ms	10872 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	10 ms	3712 KB	Output is correct
6	Correct	16 ms	5504 KB	Output is correct
7	Correct	4 ms	2688 KB	Output is correct
8	Correct	29 ms	6912 KB	Output is correct
9	Correct	39 ms	8828 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	55 ms	10364 KB	Output is correct
12	Correct	61 ms	12844 KB	Output is correct
13	Correct	4 ms	2816 KB	Output is correct
14	Correct	4 ms	2688 KB	Output is correct
15	Correct	4 ms	2816 KB	Output is correct
16	Correct	5 ms	2816 KB	Output is correct
17	Correct	4 ms	2688 KB	Output is correct
18	Correct	4 ms	2816 KB	Output is correct
19	Correct	5 ms	2816 KB	Output is correct
20	Correct	4 ms	2688 KB	Output is correct
21	Correct	4 ms	2816 KB	Output is correct
22	Correct	4 ms	2816 KB	Output is correct
23	Correct	3 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	3 ms	2688 KB	Output is correct
27	Correct	3 ms	2688 KB	Output is correct
28	Correct	3 ms	2688 KB	Output is correct
29	Correct	3 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	2684 KB	Output is correct
33	Correct	3 ms	2688 KB	Output is correct
34	Correct	3 ms	2688 KB	Output is correct
35	Correct	3 ms	2688 KB	Output is correct
36	Correct	3 ms	2688 KB	Output is correct
37	Correct	3 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct
39	Correct	4 ms	2688 KB	Output is correct
40	Correct	4 ms	2688 KB	Output is correct
41	Correct	3 ms	2688 KB	Output is correct
42	Correct	5 ms	3072 KB	Output is correct
43	Correct	5 ms	3072 KB	Output is correct
44	Correct	5 ms	2816 KB	Output is correct
45	Correct	4 ms	2688 KB	Output is correct
46	Correct	5 ms	2944 KB	Output is correct
47	Correct	5 ms	2944 KB	Output is correct
48	Correct	4 ms	2816 KB	Output is correct
49	Correct	4 ms	2816 KB	Output is correct
50	Correct	5 ms	2816 KB	Output is correct
51	Correct	5 ms	2944 KB	Output is correct
52	Correct	4 ms	2688 KB	Output is correct
53	Correct	4 ms	2816 KB	Output is correct
54	Correct	5 ms	2816 KB	Output is correct
55	Correct	5 ms	2816 KB	Output is correct
56	Correct	5 ms	2816 KB	Output is correct
57	Correct	5 ms	2944 KB	Output is correct
58	Correct	4 ms	2816 KB	Output is correct
59	Correct	4 ms	2816 KB	Output is correct
60	Correct	5 ms	2816 KB	Output is correct
61	Correct	5 ms	2816 KB	Output is correct
62	Correct	5 ms	2816 KB	Output is correct
63	Correct	5 ms	2816 KB	Output is correct
64	Correct	5 ms	2816 KB	Output is correct
65	Correct	4 ms	2816 KB	Output is correct
66	Correct	16 ms	2816 KB	Output is correct
67	Correct	4 ms	2816 KB	Output is correct
68	Correct	4 ms	2688 KB	Output is correct
69	Correct	3 ms	2688 KB	Output is correct
70	Correct	5 ms	2816 KB	Output is correct
71	Correct	5 ms	2816 KB	Output is correct
72	Correct	4 ms	2816 KB	Output is correct
73	Correct	4 ms	2688 KB	Output is correct
74	Correct	4 ms	2816 KB	Output is correct
75	Correct	5 ms	2816 KB	Output is correct
76	Correct	4 ms	2816 KB	Output is correct
77	Correct	5 ms	2816 KB	Output is correct
78	Correct	4 ms	2816 KB	Output is correct
79	Correct	4 ms	2840 KB	Output is correct
80	Correct	4 ms	2816 KB	Output is correct
81	Correct	4 ms	2816 KB	Output is correct
82	Correct	4 ms	2816 KB	Output is correct
83	Correct	5 ms	2816 KB	Output is correct
84	Correct	5 ms	2816 KB	Output is correct
85	Correct	5 ms	2816 KB	Output is correct
86	Correct	5 ms	2816 KB	Output is correct
87	Correct	5 ms	2816 KB	Output is correct
88	Correct	5 ms	2816 KB	Output is correct
89	Correct	5 ms	2816 KB	Output is correct
90	Correct	4 ms	2688 KB	Output is correct
91	Correct	4 ms	2688 KB	Output is correct
92	Correct	3 ms	2688 KB	Output is correct
93	Correct	4 ms	2688 KB	Output is correct
94	Correct	3 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	3 ms	2688 KB	Output is correct
98	Correct	4 ms	2688 KB	Output is correct
99	Correct	3 ms	2688 KB	Output is correct
100	Correct	3 ms	2688 KB	Output is correct
101	Correct	4 ms	2816 KB	Output is correct
102	Correct	4 ms	2688 KB	Output is correct

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	15228 KB	Output is correct
2	Correct	61 ms	15200 KB	Output is correct
3	Correct	40 ms	10872 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	10 ms	3712 KB	Output is correct
6	Correct	16 ms	5504 KB	Output is correct
7	Correct	4 ms	2688 KB	Output is correct
8	Correct	29 ms	6912 KB	Output is correct
9	Correct	39 ms	8828 KB	Output is correct
10	Correct	4 ms	2816 KB	Output is correct
11	Correct	55 ms	10364 KB	Output is correct
12	Correct	61 ms	12844 KB	Output is correct
13	Correct	4 ms	2816 KB	Output is correct
14	Correct	3 ms	2688 KB	Output is correct
15	Correct	3 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	4 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	3 ms	2688 KB	Output is correct
26	Correct	3 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	3 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	3 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	3 ms	2688 KB	Output is correct
38	Correct	4 ms	2688 KB	Output is correct
39	Correct	72 ms	15220 KB	Output is correct
40	Correct	71 ms	15212 KB	Output is correct
41	Correct	46 ms	10872 KB	Output is correct
42	Correct	12 ms	4608 KB	Output is correct
43	Correct	4 ms	2688 KB	Output is correct
44	Correct	5 ms	2688 KB	Output is correct
45	Correct	4 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	3 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	76 ms	8744 KB	Output is correct
58	Correct	72 ms	8696 KB	Output is correct
59	Correct	107 ms	8696 KB	Output is correct
60	Correct	81 ms	8824 KB	Output is correct
61	Correct	182 ms	8540 KB	Output is correct
62	Correct	81 ms	8568 KB	Output is correct
63	Correct	73 ms	8392 KB	Output is correct
64	Incorrect	61 ms	8312 KB	Output isn't correct
65	Halted	0 ms	0 KB	-

답안 #97577

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 23.0

Subtask #4 18.0 / 18.0

Subtask #5 12.0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 23.0

Subtask #4
18.0 / 18.0

Subtask #5
12.0 / 12.0

Subtask #6
0 / 23.0