Submission #719108

#	Time	Username	Problem	Language	Result	Execution time	Memory
719108		bin9638	Rail (IOI14_rail)	C++17	Compilation error	0 ms	0 KiB

rail

#include <bits/stdc++.h>

#ifndef SKY
#include "rail.h"
#endif // SKY

using namespace std;

#define N  5010
#define ll long long
#define fs first
#define sc second
#define ii pair<int,int>
#define pb push_back
#define iii pair<int,pair<int,int>>

int dis[N][N],n;

#ifdef SKY
int pos[N],type[N],my_location[N],my_stype[N];
int getDistance(int u,int v)
{
    if(pos[u]>pos[v])
        swap(u,v);
    if(u==v)
        return 0;
    int L=-1,R=-1;
    for(int i=0;i<n;i++)
        if(type[i]==0&&pos[i]<=pos[u]&&(L==-1||pos[i]>pos[L]))
            L=i;
    for(int i=0;i<n;i++)
        if(type[i]==1&&pos[i]>=pos[v]&&(R==-1||pos[i]<pos[R]))
            R=i;
    return  pos[R]-pos[L]+(pos[u]-pos[L])+(pos[R]-pos[v]);
}
#endif // SKY

int my_ask(int u,int v)
{
    if(u==v)
        return 0;
    if(dis[u][v]!=-1)
        return dis[u][v];
    dis[u][v]=dis[v][u]=getDistance(u,v);
    return dis[u][v];
}

void solve(vector<int>s,int moc,int val)
{
    while(!s.empty())
    {
        vector<int>luu;
        int u=-1;
        for(auto i:s)
            if(u==-1||my_ask(i,moc)<my_ask(u,moc))
                u=i;
        if(val==0)
            my_location[u]=my_location[moc]-my_ask(u,moc);
                else my_location[u]=my_location[moc]+my_ask(u,moc);
        my_stype[u]=val;
        for(auto i:s)
            if(i!=u)
            {
                if(my_ask(moc,i)==my_ask(moc,u)+my_ask(u,i))
                {
                    my_location[i]=(val==0 ? my_location[u]+my_ask(u,i) : my_location[u]-my_ask(u,i));
                    my_stype[i]=(val^1);
                }else
                {
                    luu.pb(i);
                }
            }
        s=luu;
    }
}

void findLocation(int cc, int first, int location[], int stype[])
{
    n=cc;
    memset(dis,-1,sizeof(dis));
    my_location[0]=first;
    my_stype[0]=0;
    int R=-1;
    for(int i=1;i<n;i++)
        if(R==-1||my_ask(i,0)<my_ask(R,0))
            R=i;
    my_location[R]=my_location[0]+my_ask(R,0);
    my_stype[R]=1;
    int L=-1;
    for(int i=0;i<n;i++)
        if(i!=R&&(L==-1||my_ask(i,R)<my_ask(L,R)))
            L=i;
    my_location[L]=my_location[R]-my_ask(L,R);
    my_stype[L]=0;
    //cout<<L<<" "<<R<<endl;
    vector<int>lis_left,list_right;
    for(int i=0;i<n;i++)
        if(i!=L&&i!=R)
        {
            if(my_ask(i,L)>my_ask(i,R))
                lis_left.pb(i);
                    else list_right.pb(i);
        }
    solve(lis_left,R,0);
    solve(list_right,L,1);
    for(int i=0;i<n;i++)
    {
        my_stype[i]++;
        location[i]=my_location[i];
        stype[i]=my_stype[i];
    }
    #ifdef SKY
    for(int i=0;i<n;i++)
        cout<<location[i]<<" "<<stype[i]<<endl;
    #endif // SKY
}

#ifdef SKY
int main()
{
    freopen("A.inp","r",stdin);
    freopen("A.out","w",stdout);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
        cin>>pos[i]>>type[i];
    int location[n],stype[n];
    findLocation(n,pos[0],location,stype);
    return 0;
}
#endif

Compilation message (stderr)

rail.cpp: In function 'void solve(std::vector<int>, int, int)':
rail.cpp:58:13: error: 'my_location' was not declared in this scope
   58 |             my_location[u]=my_location[moc]-my_ask(u,moc);
      |             ^~~~~~~~~~~
rail.cpp:59:22: error: 'my_location' was not declared in this scope
   59 |                 else my_location[u]=my_location[moc]+my_ask(u,moc);
      |                      ^~~~~~~~~~~
rail.cpp:60:9: error: 'my_stype' was not declared in this scope
   60 |         my_stype[u]=val;
      |         ^~~~~~~~
rail.cpp:66:21: error: 'my_location' was not declared in this scope
   66 |                     my_location[i]=(val==0 ? my_location[u]+my_ask(u,i) : my_location[u]-my_ask(u,i));
      |                     ^~~~~~~~~~~
rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:81:5: error: 'my_location' was not declared in this scope; did you mean 'location'?
   81 |     my_location[0]=first;
      |     ^~~~~~~~~~~
      |     location
rail.cpp:82:5: error: 'my_stype' was not declared in this scope; did you mean 'stype'?
   82 |     my_stype[0]=0;
      |     ^~~~~~~~
      |     stype