Submission #1035881

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035881		DucNguyen2007	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	Compilation error	0 ms	0 KiB

skyscraper

#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=305;
const ll inf=2e18;
int n,m,b[maxN+1],p[maxN+1];
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;
    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])
        {
            if(vis[j])
            {
                adj[b[i]].push_back({j,0,(j-b[i])/p[i]});
            }
        }
        for(int j=b[i]-p[i];j>=0;j-=p[i])
        {
            if(vis[j])
            {
                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;
}
#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=305;
const ll inf=2e18;
int n,m,b[maxN+1],p[maxN+1];
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;
    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])
        {
            if(vis[j])
            {
                adj[b[i]].push_back({j,0,(j-b[i])/p[i]});
            }
        }
        for(int j=b[i]-p[i];j>=0;j-=p[i])
        {
            if(vis[j])
            {
                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;
}

Compilation message (stderr)

skyscraper.cpp:143:11: error: redefinition of 'const int maxN'
  143 | const int maxN=3e4+5,BLOCK=305;
      |           ^~~~
skyscraper.cpp:9:11: note: 'const int maxN' previously defined here
    9 | const int maxN=3e4+5,BLOCK=305;
      |           ^~~~
skyscraper.cpp:143:22: error: redefinition of 'const int BLOCK'
  143 | const int maxN=3e4+5,BLOCK=305;
      |                      ^~~~~
skyscraper.cpp:9:22: note: 'const int BLOCK' previously defined here
    9 | const int maxN=3e4+5,BLOCK=305;
      |                      ^~~~~
skyscraper.cpp:144:10: error: redefinition of 'const long long int inf'
  144 | const ll inf=2e18;
      |          ^~~
skyscraper.cpp:10:10: note: 'const long long int inf' previously defined here
   10 | const ll inf=2e18;
      |          ^~~
skyscraper.cpp:145:5: error: redefinition of 'int n'
  145 | int n,m,b[maxN+1],p[maxN+1];
      |     ^
skyscraper.cpp:11:5: note: 'int n' previously declared here
   11 | int n,m,b[maxN+1],p[maxN+1];
      |     ^
skyscraper.cpp:145:7: error: redefinition of 'int m'
  145 | int n,m,b[maxN+1],p[maxN+1];
      |       ^
skyscraper.cpp:11:7: note: 'int m' previously declared here
   11 | int n,m,b[maxN+1],p[maxN+1];
      |       ^
skyscraper.cpp:145:9: error: redefinition of 'int b [30006]'
  145 | int n,m,b[maxN+1],p[maxN+1];
      |         ^
skyscraper.cpp:11:9: note: 'int b [30006]' previously declared here
   11 | int n,m,b[maxN+1],p[maxN+1];
      |         ^
skyscraper.cpp:145:19: error: redefinition of 'int p [30006]'
  145 | int n,m,b[maxN+1],p[maxN+1];
      |                   ^
skyscraper.cpp:11:19: note: 'int p [30006]' previously declared here
   11 | int n,m,b[maxN+1],p[maxN+1];
      |                   ^
skyscraper.cpp:146:4: error: redefinition of 'long long int d [30006][306]'
  146 | ll d[maxN+1][BLOCK+1];
      |    ^
skyscraper.cpp:12:4: note: 'long long int d [30006][306]' previously declared here
   12 | ll d[maxN+1][BLOCK+1];
      |    ^
skyscraper.cpp:147:6: error: redefinition of 'bool vis [30006]'
  147 | bool vis[maxN+1];
      |      ^~~
skyscraper.cpp:13:6: note: 'bool vis [30006]' previously declared here
   13 | bool vis[maxN+1];
      |      ^~~
skyscraper.cpp:148:8: error: redefinition of 'struct duongdi'
  148 | struct duongdi
      |        ^~~~~~~
skyscraper.cpp:14:8: note: previous definition of 'struct duongdi'
   14 | struct duongdi
      |        ^~~~~~~
skyscraper.cpp:157:17: error: redefinition of 'std::vector<duongdi> adj [30006]'
  157 | vector<duongdi> adj[maxN+1];
      |                 ^~~
skyscraper.cpp:23:17: note: 'std::vector<duongdi> adj [30006]' previously declared here
   23 | vector<duongdi> adj[maxN+1];
      |                 ^~~
skyscraper.cpp:158:25: error: redefinition of 'std::priority_queue<duongdi> pq'
  158 | priority_queue<duongdi> pq;
      |                         ^~
skyscraper.cpp:24:25: note: 'std::priority_queue<duongdi> pq' previously declared here
   24 | priority_queue<duongdi> pq;
      |                         ^~
skyscraper.cpp:159:13: error: redefinition of 'std::vector<int> vec [30006]'
  159 | vector<int> vec[maxN+1];
      |             ^~~
skyscraper.cpp:25:13: note: 'std::vector<int> vec [30006]' previously declared here
   25 | vector<int> vec[maxN+1];
      |             ^~~
skyscraper.cpp:160:6: error: redefinition of 'void CO(int, int, int, int, int)'
  160 | void CO(int u,int v,int pw,int power,int w)
      |      ^~
skyscraper.cpp:26:6: note: 'void CO(int, int, int, int, int)' previously defined here
   26 | void CO(int u,int v,int pw,int power,int w)
      |      ^~
skyscraper.cpp:168:5: error: redefinition of 'int main()'
  168 | int main()
      |     ^~~~
skyscraper.cpp:34:5: note: 'int main()' previously defined here
   34 | int main()
      |     ^~~~