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Submission #1035874

# Submission time Handle Problem Language Result Execution time Memory
1035874 2024-07-26T17:06:37 Z DucNguyen2007 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 478 ms 97600 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
const int maxN=3e4+5,BLOCK=sqrt(maxN);
const ll inf=2e18;
int n,m,b[maxN+1],p[maxN+1],block;
ll d[maxN+1][BLOCK+1];
bool vis[maxN+1];
struct duongdi
{
    int u,power;
    ll w;
    bool operator < (const duongdi &o)const
    {
        return w>o.w;
    }
};
vector<duongdi> adj[maxN+1];
priority_queue<duongdi> pq;
vector<int> vec[maxN+1];
void CO(int u,int v,int pw,int power,int w)
{
    if(d[v][pw]>d[u][power]+w)
    {
        d[v][pw]=d[u][power]+w;
        pq.push({v,pw,d[v][pw]});
    }
}
int main()
{
    //freopen("","r",stdin);
    //freopen("","w",stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m;
    block=sqrt(n);
    memset(vis,false,sizeof(vis));
    for(int i=0;i<m;i++)
    {
        cin>>b[i]>>p[i];
        if(p[i]<=block)
        {
            vec[b[i]].push_back(p[i]);
        }
        else vis[b[i]]=true;
    }
    for(int i=0;i<m;i++)
    {
        if(p[i]<=block)
        {
            continue;
        }
        for(int j=b[i]+p[i];j<n;j+=p[i])
        {
            adj[b[i]].push_back({j,0,(j-b[i])/p[i]});
        }
        for(int j=b[i]-p[i];j>=0;j-=p[i])
        {
            adj[b[i]].push_back({j,0,(b[i]-j)/p[i]});
        }
    }
    for(int i=0;i<n;i++)
    {
        for(int j=0;j<=block;j++)
        {
            d[i][j]=inf;
        }
    }
    if(p[0]<=block)
    {
        d[b[0]][p[0]]=0;
        pq.push({b[0],p[0],0});
    }
    else
    {
        d[b[0]][0]=0;
        pq.push({b[0],0,0});
    }
    while(!pq.empty())
    {
        duongdi tmp=pq.top();
        pq.pop();
        int u=tmp.u,power=tmp.power;
        ll w=tmp.w;
        //cout<<u<<" "<<power<<" "<<w<<'\n';
        if(u==b[1])
        {
            cout<<d[u][power];
            return 0;
        }
        if(d[u][power]<w)
        {
            continue;
        }
        if(power>0)
        {
            if(u+power<n)
            {
                CO(u,u+power,power,power,1);
            }
            if(u-power>=0)
            {
                CO(u,u-power,power,power,1);
            }
            if(vis[u])
            {
                CO(u,u,0,power,0);
            }
        }
        else
        {
            for(auto i:adj[u])
            {
                CO(u,i.u,0,power,i.w);
            }
        }
        for(auto i:vec[u])
        {
            CO(u,u,i,power,0);
        }
    }
    cout<<-1;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1880 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1884 KB Output is correct
2 Correct 1 ms 1880 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1880 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 1884 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 1 ms 1884 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 2140 KB Output is correct
15 Correct 1 ms 2140 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1884 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 1880 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 2 ms 2140 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 2140 KB Output is correct
15 Correct 1 ms 1940 KB Output is correct
16 Correct 1 ms 2140 KB Output is correct
17 Correct 2 ms 2908 KB Output is correct
18 Correct 2 ms 4188 KB Output is correct
19 Correct 2 ms 4552 KB Output is correct
20 Correct 3 ms 4696 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 2 ms 4188 KB Output is correct
23 Correct 3 ms 3932 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4472 KB Output is correct
26 Correct 2 ms 4700 KB Output is correct
27 Correct 2 ms 4444 KB Output is correct
28 Correct 3 ms 4700 KB Output is correct
29 Correct 4 ms 4444 KB Output is correct
30 Correct 2 ms 4444 KB Output is correct
31 Correct 3 ms 4700 KB Output is correct
32 Correct 3 ms 4700 KB Output is correct
33 Correct 6 ms 5824 KB Output is correct
34 Correct 5 ms 5724 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1884 KB Output is correct
2 Correct 1 ms 1880 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 1884 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 1 ms 2140 KB Output is correct
12 Correct 2 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 2140 KB Output is correct
15 Correct 1 ms 2140 KB Output is correct
16 Correct 1 ms 2140 KB Output is correct
17 Correct 1 ms 2908 KB Output is correct
18 Correct 2 ms 4188 KB Output is correct
19 Correct 2 ms 4444 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 2 ms 4188 KB Output is correct
23 Correct 2 ms 3932 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4700 KB Output is correct
26 Correct 2 ms 4700 KB Output is correct
27 Correct 2 ms 4444 KB Output is correct
28 Correct 3 ms 4700 KB Output is correct
29 Correct 4 ms 4444 KB Output is correct
30 Correct 2 ms 4444 KB Output is correct
31 Correct 4 ms 4696 KB Output is correct
32 Correct 3 ms 4700 KB Output is correct
33 Correct 8 ms 5724 KB Output is correct
34 Correct 5 ms 5976 KB Output is correct
35 Correct 6 ms 5208 KB Output is correct
36 Correct 2 ms 3420 KB Output is correct
37 Correct 6 ms 7260 KB Output is correct
38 Correct 7 ms 7092 KB Output is correct
39 Correct 7 ms 7004 KB Output is correct
40 Correct 7 ms 7076 KB Output is correct
41 Correct 7 ms 7004 KB Output is correct
42 Correct 4 ms 4920 KB Output is correct
43 Correct 5 ms 4952 KB Output is correct
44 Correct 5 ms 4956 KB Output is correct
45 Correct 15 ms 12472 KB Output is correct
46 Correct 12 ms 12376 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1880 KB Output is correct
9 Correct 1 ms 1884 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 1 ms 2140 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 2140 KB Output is correct
15 Correct 1 ms 2140 KB Output is correct
16 Correct 1 ms 2192 KB Output is correct
17 Correct 2 ms 2908 KB Output is correct
18 Correct 2 ms 4188 KB Output is correct
19 Correct 2 ms 4444 KB Output is correct
20 Correct 2 ms 4696 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 2 ms 4188 KB Output is correct
23 Correct 3 ms 3932 KB Output is correct
24 Correct 2 ms 4440 KB Output is correct
25 Correct 2 ms 4444 KB Output is correct
26 Correct 2 ms 4700 KB Output is correct
27 Correct 2 ms 4444 KB Output is correct
28 Correct 3 ms 4700 KB Output is correct
29 Correct 4 ms 4444 KB Output is correct
30 Correct 2 ms 4444 KB Output is correct
31 Correct 3 ms 4700 KB Output is correct
32 Correct 4 ms 4696 KB Output is correct
33 Correct 6 ms 5720 KB Output is correct
34 Correct 5 ms 5724 KB Output is correct
35 Correct 6 ms 5180 KB Output is correct
36 Correct 2 ms 3420 KB Output is correct
37 Correct 6 ms 7260 KB Output is correct
38 Correct 7 ms 7136 KB Output is correct
39 Correct 8 ms 7004 KB Output is correct
40 Correct 7 ms 7004 KB Output is correct
41 Correct 7 ms 6964 KB Output is correct
42 Correct 4 ms 4956 KB Output is correct
43 Correct 4 ms 4956 KB Output is correct
44 Correct 4 ms 4956 KB Output is correct
45 Correct 16 ms 12636 KB Output is correct
46 Correct 13 ms 12412 KB Output is correct
47 Correct 21 ms 27868 KB Output is correct
48 Correct 18 ms 35676 KB Output is correct
49 Correct 18 ms 38168 KB Output is correct
50 Correct 19 ms 41304 KB Output is correct
51 Correct 29 ms 46556 KB Output is correct
52 Correct 30 ms 46632 KB Output is correct
53 Correct 20 ms 43100 KB Output is correct
54 Correct 21 ms 42588 KB Output is correct
55 Correct 17 ms 42588 KB Output is correct
56 Correct 26 ms 43864 KB Output is correct
57 Correct 16 ms 42844 KB Output is correct
58 Correct 25 ms 43096 KB Output is correct
59 Correct 23 ms 43100 KB Output is correct
60 Correct 35 ms 43576 KB Output is correct
61 Correct 25 ms 43516 KB Output is correct
62 Correct 50 ms 47192 KB Output is correct
63 Correct 102 ms 90020 KB Output is correct
64 Correct 88 ms 97600 KB Output is correct
65 Correct 184 ms 97364 KB Output is correct
66 Correct 478 ms 86644 KB Output is correct
67 Correct 250 ms 86232 KB Output is correct