oj.uz

Submission #97573

# Submission time Handle Problem Language Result Execution time Memory
97573 2019-02-17T08:28:00 Z georgerapeanu Dreaming (IOI13_dreaming) C++11
24 / 100
 82 ms 15224 KB 
#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());

    return max(ans,d[0] + d[1] + L);
}

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

# Verdict Execution time Memory Grader output
1 Correct 72 ms 15224 KB Output is correct
2 Correct 72 ms 15208 KB Output is correct
3 Correct 43 ms 10872 KB Output is correct
4 Correct 12 ms 4608 KB Output is correct
5 Correct 9 ms 3584 KB Output is correct
6 Correct 17 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 60 ms 8824 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 67 ms 10488 KB Output is correct
12 Correct 65 ms 12792 KB Output is correct
13 Correct 4 ms 2816 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 15224 KB Output is correct
2 Correct 72 ms 15208 KB Output is correct
3 Correct 43 ms 10872 KB Output is correct
4 Correct 12 ms 4608 KB Output is correct
5 Correct 9 ms 3584 KB Output is correct
6 Correct 17 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 60 ms 8824 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 67 ms 10488 KB Output is correct
12 Correct 65 ms 12792 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 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2620 KB Output is correct
18 Correct 4 ms 2688 KB Output is correct
19 Correct 3 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 7 ms 2732 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 4 ms 2660 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 3 ms 2688 KB Output is correct
37 Correct 4 ms 2688 KB Output is correct
38 Correct 3 ms 2688 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 15224 KB Output is correct
2 Correct 72 ms 15208 KB Output is correct
3 Correct 43 ms 10872 KB Output is correct
4 Correct 12 ms 4608 KB Output is correct
5 Correct 9 ms 3584 KB Output is correct
6 Correct 17 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 60 ms 8824 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 67 ms 10488 KB Output is correct
12 Correct 65 ms 12792 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 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2620 KB Output is correct
18 Correct 4 ms 2688 KB Output is correct
19 Correct 3 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 7 ms 2732 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 4 ms 2660 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 3 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 62 ms 15096 KB Output is correct
40 Correct 61 ms 15224 KB Output is correct
41 Correct 42 ms 10872 KB Output is correct
42 Correct 17 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 3 ms 2688 KB Output is correct
48 Correct 3 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 82 ms 8668 KB Output is correct
58 Correct 71 ms 8640 KB Output is correct
59 Correct 67 ms 8632 KB Output is correct
60 Correct 79 ms 8668 KB Output is correct
61 Correct 67 ms 8568 KB Output is correct
62 Correct 74 ms 8568 KB Output is correct
63 Correct 59 ms 8440 KB Output is correct
64 Incorrect 56 ms 8440 KB Output isn't correct
65 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 6144 KB Output is correct
2 Incorrect 33 ms 6272 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 15224 KB Output is correct
2 Correct 72 ms 15208 KB Output is correct
3 Correct 43 ms 10872 KB Output is correct
4 Correct 12 ms 4608 KB Output is correct
5 Correct 9 ms 3584 KB Output is correct
6 Correct 17 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 60 ms 8824 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 67 ms 10488 KB Output is correct
12 Correct 65 ms 12792 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 5 ms 2816 KB Output is correct
19 Correct 5 ms 2816 KB Output is correct
20 Incorrect 4 ms 2688 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 15224 KB Output is correct
2 Correct 72 ms 15208 KB Output is correct
3 Correct 43 ms 10872 KB Output is correct
4 Correct 12 ms 4608 KB Output is correct
5 Correct 9 ms 3584 KB Output is correct
6 Correct 17 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 60 ms 8824 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 67 ms 10488 KB Output is correct
12 Correct 65 ms 12792 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 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2620 KB Output is correct
18 Correct 4 ms 2688 KB Output is correct
19 Correct 3 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 7 ms 2732 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 4 ms 2660 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 3 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 62 ms 15096 KB Output is correct
40 Correct 61 ms 15224 KB Output is correct
41 Correct 42 ms 10872 KB Output is correct
42 Correct 17 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 3 ms 2688 KB Output is correct
48 Correct 3 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 82 ms 8668 KB Output is correct
58 Correct 71 ms 8640 KB Output is correct
59 Correct 67 ms 8632 KB Output is correct
60 Correct 79 ms 8668 KB Output is correct
61 Correct 67 ms 8568 KB Output is correct
62 Correct 74 ms 8568 KB Output is correct
63 Correct 59 ms 8440 KB Output is correct
64 Incorrect 56 ms 8440 KB Output isn't correct
65 Halted 0 ms 0 KB -