답안 #97571 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
97571	2019-02-17T08:25:01 Z	georgerapeanu	꿈 (IOI13_dreaming)	C++11	54 / 100	85 ms	15224 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());

    int st = 0,dr = (int)d.size() - 1;

    while(st < dr){
        if(d[dr] >= d[st] + L){
            ans = max(ans,d[dr] + d[st] + L);
            st++;
        }
        else{
            ans = max(ans,d[dr] + d[dr - 1] + L);
            d[dr - 1] = max(d[dr],d[dr - 1] + L);
            dr--;
        }
    }

    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	76 ms	15096 KB	Output is correct
2	Correct	70 ms	15116 KB	Output is correct
3	Correct	43 ms	10784 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	9 ms	3584 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	6904 KB	Output is correct
9	Correct	35 ms	8824 KB	Output is correct
10	Correct	3 ms	2688 KB	Output is correct
11	Correct	50 ms	10364 KB	Output is correct
12	Correct	60 ms	12820 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	76 ms	15096 KB	Output is correct
2	Correct	70 ms	15116 KB	Output is correct
3	Correct	43 ms	10784 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	9 ms	3584 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	6904 KB	Output is correct
9	Correct	35 ms	8824 KB	Output is correct
10	Correct	3 ms	2688 KB	Output is correct
11	Correct	50 ms	10364 KB	Output is correct
12	Correct	60 ms	12820 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	3 ms	2688 KB	Output is correct
18	Correct	3 ms	2688 KB	Output is correct
19	Correct	4 ms	2688 KB	Output is correct
20	Correct	4 ms	2688 KB	Output is correct
21	Correct	12 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	3 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	3 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	3 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
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	15096 KB	Output is correct
2	Correct	70 ms	15116 KB	Output is correct
3	Correct	43 ms	10784 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	9 ms	3584 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	6904 KB	Output is correct
9	Correct	35 ms	8824 KB	Output is correct
10	Correct	3 ms	2688 KB	Output is correct
11	Correct	50 ms	10364 KB	Output is correct
12	Correct	60 ms	12820 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	3 ms	2688 KB	Output is correct
18	Correct	3 ms	2688 KB	Output is correct
19	Correct	4 ms	2688 KB	Output is correct
20	Correct	4 ms	2688 KB	Output is correct
21	Correct	12 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	3 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	3 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	3 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	60 ms	15224 KB	Output is correct
40	Correct	76 ms	15196 KB	Output is correct
41	Correct	41 ms	11004 KB	Output is correct
42	Correct	11 ms	4608 KB	Output is correct
43	Correct	4 ms	2688 KB	Output is correct
44	Correct	3 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	4 ms	2688 KB	Output is correct
49	Correct	3 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	4 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	84 ms	8696 KB	Output is correct
58	Correct	80 ms	8700 KB	Output is correct
59	Correct	84 ms	8696 KB	Output is correct
60	Correct	80 ms	8696 KB	Output is correct
61	Correct	78 ms	8568 KB	Output is correct
62	Correct	70 ms	8568 KB	Output is correct
63	Correct	62 ms	8440 KB	Output is correct
64	Incorrect	61 ms	8412 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	35 ms	6136 KB	Output is correct
2	Correct	32 ms	6272 KB	Output is correct
3	Correct	34 ms	6264 KB	Output is correct
4	Correct	36 ms	6272 KB	Output is correct
5	Correct	31 ms	6272 KB	Output is correct
6	Correct	85 ms	6732 KB	Output is correct
7	Correct	38 ms	6392 KB	Output is correct
8	Correct	34 ms	6136 KB	Output is correct
9	Correct	34 ms	6132 KB	Output is correct
10	Correct	35 ms	6392 KB	Output is correct
11	Correct	3 ms	2688 KB	Output is correct
12	Correct	24 ms	4220 KB	Output is correct
13	Correct	19 ms	4220 KB	Output is correct
14	Correct	19 ms	4220 KB	Output is correct
15	Correct	12 ms	4220 KB	Output is correct
16	Correct	12 ms	4220 KB	Output is correct
17	Correct	11 ms	4092 KB	Output is correct
18	Correct	13 ms	4308 KB	Output is correct
19	Correct	11 ms	4092 KB	Output is correct
20	Correct	4 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	11 ms	4220 KB	Output is correct

Subtask #5
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	15096 KB	Output is correct
2	Correct	70 ms	15116 KB	Output is correct
3	Correct	43 ms	10784 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	9 ms	3584 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	6904 KB	Output is correct
9	Correct	35 ms	8824 KB	Output is correct
10	Correct	3 ms	2688 KB	Output is correct
11	Correct	50 ms	10364 KB	Output is correct
12	Correct	60 ms	12820 KB	Output is correct
13	Correct	4 ms	2816 KB	Output is correct
14	Correct	5 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	2816 KB	Output is correct
21	Correct	5 ms	2816 KB	Output is correct
22	Correct	5 ms	2816 KB	Output is correct
23	Correct	4 ms	2560 KB	Output is correct
24	Correct	3 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	3 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	3 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	5 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	2816 KB	Output is correct
47	Correct	5 ms	2816 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	2816 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	2900 KB	Output is correct
57	Correct	5 ms	2816 KB	Output is correct
58	Correct	5 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	2944 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	2944 KB	Output is correct
65	Correct	5 ms	2816 KB	Output is correct
66	Correct	4 ms	2816 KB	Output is correct
67	Correct	4 ms	2816 KB	Output is correct
68	Correct	4 ms	2816 KB	Output is correct
69	Correct	4 ms	2688 KB	Output is correct
70	Correct	5 ms	2816 KB	Output is correct
71	Correct	4 ms	2816 KB	Output is correct
72	Correct	4 ms	2816 KB	Output is correct
73	Correct	3 ms	2816 KB	Output is correct
74	Correct	4 ms	2816 KB	Output is correct
75	Correct	5 ms	2816 KB	Output is correct
76	Correct	5 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	2816 KB	Output is correct
80	Correct	5 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	3 ms	2688 KB	Output is correct
91	Correct	3 ms	2688 KB	Output is correct
92	Correct	4 ms	2608 KB	Output is correct
93	Correct	3 ms	2688 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	3 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	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	76 ms	15096 KB	Output is correct
2	Correct	70 ms	15116 KB	Output is correct
3	Correct	43 ms	10784 KB	Output is correct
4	Correct	11 ms	4608 KB	Output is correct
5	Correct	9 ms	3584 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	6904 KB	Output is correct
9	Correct	35 ms	8824 KB	Output is correct
10	Correct	3 ms	2688 KB	Output is correct
11	Correct	50 ms	10364 KB	Output is correct
12	Correct	60 ms	12820 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	3 ms	2688 KB	Output is correct
18	Correct	3 ms	2688 KB	Output is correct
19	Correct	4 ms	2688 KB	Output is correct
20	Correct	4 ms	2688 KB	Output is correct
21	Correct	12 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	3 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	3 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	3 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	60 ms	15224 KB	Output is correct
40	Correct	76 ms	15196 KB	Output is correct
41	Correct	41 ms	11004 KB	Output is correct
42	Correct	11 ms	4608 KB	Output is correct
43	Correct	4 ms	2688 KB	Output is correct
44	Correct	3 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	4 ms	2688 KB	Output is correct
49	Correct	3 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	4 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	84 ms	8696 KB	Output is correct
58	Correct	80 ms	8700 KB	Output is correct
59	Correct	84 ms	8696 KB	Output is correct
60	Correct	80 ms	8696 KB	Output is correct
61	Correct	78 ms	8568 KB	Output is correct
62	Correct	70 ms	8568 KB	Output is correct
63	Correct	62 ms	8440 KB	Output is correct
64	Incorrect	61 ms	8412 KB	Output isn't correct
65	Halted	0 ms	0 KB	-

답안 #97571

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