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Submission #76828

# Submission time Handle Problem Language Result Execution time Memory
76828 2018-09-18T13:40:13 Z vex Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 10836 KB 
#include <bits/stdc++.h>
#define maxn 30005
#define pii pair<int,int>
using namespace std;

int n,m;
vector<int>p[maxn];
priority_queue<pii>pq;
int dis[maxn];
bool bio[maxn];

bool cmp(int x,int y)
{
    return x>y;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    cin>>n>>m;
    int s;
    int e;
    for(int i=0;i<m;i++)
    {
        int x,y;
        cin>>x>>y;
        p[x].push_back(y);
        if(i==0)s=x;
        if(i==1)e=x;
    }

    for(int i=0;i<n;i++)sort(p[i].begin(),p[i].end(),cmp);

    if(e==s)
    {
        cout<<"0"<<endl;
        return 0;
    }

    for(int i=0;i<n;i++)
    {
        dis[i]=maxn*maxn+55;
        bio[i]=false;
    }
    pq.push({0,s});
    dis[s]=0;

    while(!pq.empty())
    {
        int v=pq.top().second;
        pq.pop();
        if(bio[v])continue;
        bio[v]=true;

        for(auto x:p[v])
        {
            for(int i=v%x;i<n;i+=x)
            {
                if(dis[i]>dis[v]+(abs(i-v))/x)
                {
                    dis[i]=dis[v]+(abs(i-v))/x;
                    pq.push({-dis[i],i});
                }
            }
        }
    }

    if(dis[e]<maxn*maxn+1)cout<<dis[e]<<endl;
    else cout<<"-1"<<endl;
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:37:5: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(e==s)
     ^~
skyscraper.cpp:71:13: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(dis[e]<maxn*maxn+1)cout<<dis[e]<<endl;
        ~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1148 KB Output is correct
3 Correct 2 ms 1148 KB Output is correct
4 Correct 3 ms 1148 KB Output is correct
5 Correct 3 ms 1148 KB Output is correct
6 Correct 3 ms 1148 KB Output is correct
7 Correct 3 ms 1148 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1396 KB Output is correct
2 Correct 2 ms 1396 KB Output is correct
3 Correct 3 ms 1396 KB Output is correct
4 Correct 2 ms 1396 KB Output is correct
5 Correct 2 ms 1396 KB Output is correct
6 Correct 3 ms 1396 KB Output is correct
7 Correct 3 ms 1396 KB Output is correct
8 Correct 2 ms 1396 KB Output is correct
9 Correct 3 ms 1396 KB Output is correct
10 Correct 3 ms 1396 KB Output is correct
11 Correct 3 ms 1396 KB Output is correct
12 Correct 4 ms 1396 KB Output is correct
13 Correct 4 ms 1396 KB Output is correct
14 Correct 3 ms 1396 KB Output is correct
15 Correct 4 ms 1396 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1396 KB Output is correct
2 Correct 2 ms 1396 KB Output is correct
3 Correct 2 ms 1396 KB Output is correct
4 Correct 2 ms 1396 KB Output is correct
5 Correct 3 ms 1396 KB Output is correct
6 Correct 2 ms 1396 KB Output is correct
7 Correct 3 ms 1396 KB Output is correct
8 Correct 3 ms 1396 KB Output is correct
9 Correct 3 ms 1396 KB Output is correct
10 Correct 3 ms 1396 KB Output is correct
11 Correct 3 ms 1396 KB Output is correct
12 Correct 4 ms 1396 KB Output is correct
13 Correct 5 ms 1396 KB Output is correct
14 Correct 3 ms 1396 KB Output is correct
15 Correct 3 ms 1396 KB Output is correct
16 Correct 3 ms 1408 KB Output is correct
17 Correct 4 ms 1544 KB Output is correct
18 Correct 3 ms 1560 KB Output is correct
19 Correct 3 ms 1560 KB Output is correct
20 Correct 24 ms 1580 KB Output is correct
21 Correct 3 ms 1580 KB Output is correct
22 Correct 3 ms 1580 KB Output is correct
23 Correct 3 ms 1616 KB Output is correct
24 Correct 4 ms 1616 KB Output is correct
25 Correct 4 ms 1704 KB Output is correct
26 Correct 23 ms 1704 KB Output is correct
27 Correct 22 ms 1704 KB Output is correct
28 Correct 3 ms 1704 KB Output is correct
29 Correct 4 ms 1720 KB Output is correct
30 Correct 3 ms 1728 KB Output is correct
31 Correct 3 ms 1736 KB Output is correct
32 Correct 3 ms 1736 KB Output is correct
33 Correct 4 ms 1740 KB Output is correct
34 Correct 4 ms 1752 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1752 KB Output is correct
2 Correct 3 ms 1752 KB Output is correct
3 Correct 3 ms 1752 KB Output is correct
4 Correct 3 ms 1752 KB Output is correct
5 Correct 3 ms 1752 KB Output is correct
6 Correct 2 ms 1752 KB Output is correct
7 Correct 2 ms 1752 KB Output is correct
8 Correct 3 ms 1752 KB Output is correct
9 Correct 2 ms 1752 KB Output is correct
10 Correct 3 ms 1752 KB Output is correct
11 Correct 3 ms 1752 KB Output is correct
12 Correct 5 ms 1752 KB Output is correct
13 Correct 4 ms 1752 KB Output is correct
14 Correct 3 ms 1752 KB Output is correct
15 Correct 3 ms 1752 KB Output is correct
16 Correct 3 ms 1752 KB Output is correct
17 Correct 4 ms 1836 KB Output is correct
18 Correct 3 ms 1836 KB Output is correct
19 Correct 3 ms 1864 KB Output is correct
20 Correct 26 ms 1872 KB Output is correct
21 Correct 3 ms 1872 KB Output is correct
22 Correct 3 ms 1872 KB Output is correct
23 Correct 3 ms 1908 KB Output is correct
24 Correct 4 ms 1920 KB Output is correct
25 Correct 4 ms 1940 KB Output is correct
26 Correct 23 ms 1960 KB Output is correct
27 Correct 22 ms 1976 KB Output is correct
28 Correct 3 ms 1992 KB Output is correct
29 Correct 4 ms 2088 KB Output is correct
30 Correct 3 ms 2088 KB Output is correct
31 Correct 4 ms 2088 KB Output is correct
32 Correct 3 ms 2088 KB Output is correct
33 Correct 4 ms 2120 KB Output is correct
34 Correct 4 ms 2132 KB Output is correct
35 Correct 11 ms 2564 KB Output is correct
36 Correct 4 ms 2564 KB Output is correct
37 Correct 10 ms 2704 KB Output is correct
38 Correct 13 ms 2992 KB Output is correct
39 Correct 13 ms 3256 KB Output is correct
40 Correct 14 ms 3580 KB Output is correct
41 Correct 22 ms 3784 KB Output is correct
42 Correct 325 ms 4048 KB Output is correct
43 Correct 326 ms 4256 KB Output is correct
44 Correct 339 ms 4464 KB Output is correct
45 Correct 14 ms 4544 KB Output is correct
46 Correct 15 ms 4844 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4844 KB Output is correct
2 Correct 2 ms 4844 KB Output is correct
3 Correct 3 ms 4844 KB Output is correct
4 Correct 2 ms 4844 KB Output is correct
5 Correct 2 ms 4844 KB Output is correct
6 Correct 2 ms 4844 KB Output is correct
7 Correct 2 ms 4844 KB Output is correct
8 Correct 3 ms 4844 KB Output is correct
9 Correct 3 ms 4844 KB Output is correct
10 Correct 3 ms 4844 KB Output is correct
11 Correct 3 ms 4844 KB Output is correct
12 Correct 4 ms 4844 KB Output is correct
13 Correct 4 ms 4844 KB Output is correct
14 Correct 3 ms 4844 KB Output is correct
15 Correct 3 ms 4844 KB Output is correct
16 Correct 3 ms 4844 KB Output is correct
17 Correct 4 ms 4844 KB Output is correct
18 Correct 3 ms 4844 KB Output is correct
19 Correct 3 ms 4844 KB Output is correct
20 Correct 26 ms 4844 KB Output is correct
21 Correct 3 ms 4844 KB Output is correct
22 Correct 4 ms 4844 KB Output is correct
23 Correct 4 ms 4844 KB Output is correct
24 Correct 5 ms 4844 KB Output is correct
25 Correct 4 ms 4844 KB Output is correct
26 Correct 24 ms 4844 KB Output is correct
27 Correct 24 ms 4844 KB Output is correct
28 Correct 3 ms 4844 KB Output is correct
29 Correct 4 ms 4900 KB Output is correct
30 Correct 3 ms 4900 KB Output is correct
31 Correct 5 ms 4900 KB Output is correct
32 Correct 3 ms 4900 KB Output is correct
33 Correct 5 ms 4900 KB Output is correct
34 Correct 5 ms 4904 KB Output is correct
35 Correct 12 ms 5328 KB Output is correct
36 Correct 5 ms 5328 KB Output is correct
37 Correct 11 ms 5544 KB Output is correct
38 Correct 15 ms 5796 KB Output is correct
39 Correct 12 ms 6004 KB Output is correct
40 Correct 14 ms 6344 KB Output is correct
41 Correct 13 ms 6612 KB Output is correct
42 Correct 344 ms 6860 KB Output is correct
43 Correct 386 ms 7080 KB Output is correct
44 Correct 343 ms 7160 KB Output is correct
45 Correct 13 ms 7368 KB Output is correct
46 Correct 13 ms 7540 KB Output is correct
47 Correct 27 ms 8560 KB Output is correct
48 Correct 11 ms 8560 KB Output is correct
49 Correct 11 ms 8560 KB Output is correct
50 Correct 8 ms 8636 KB Output is correct
51 Correct 36 ms 10444 KB Output is correct
52 Correct 37 ms 10444 KB Output is correct
53 Correct 23 ms 10604 KB Output is correct
54 Correct 5 ms 10604 KB Output is correct
55 Correct 5 ms 10604 KB Output is correct
56 Execution timed out 1071 ms 10836 KB Time limit exceeded
57 Halted 0 ms 0 KB -