Submission #938677

#	Time	Username	Problem	Language	Result	Execution time	Memory
938677		groshi	Meetings (JOI19_meetings)	C++17	Compilation error	0 ms	0 KiB

meetings

#include"meetings.h"
//#include<bits/stdc++.h>
using namespace std;
int N;
/*int Query(int x,int y,int z)
{
    cout<<x<<" "<<y<<" "<<z<<": ";
    int wynik;
    cin>>wynik;
    cout<<"\n";
    return wynik;
}
void Bridge(int x,int y)
{
    cout<<x<<" "<<y<<" buduje\n";
}*/
void dfs(int x,vector<int> Q)
{
    if(Q.size()==0)
        return;
    int strzal=rand()%(Q.size());
    strzal=Q[strzal];
    //cout<<x<<" "<<strzal<<"\n";
    vector<int> sasiad[N],sciezka;
    for(int i=0;i<Q.size();i++)
    {
        if(Q[i]==strzal)
            continue;
        int mam=Query(x,strzal,Q[i]);
        if(mam==Q[i])
            sciezka.push_back(Q[i]);
        else{
            //cout<<"wrzucam "<<mam<<" "<<Q[i]<<"\n";
            sasiad[mam].push_back(Q[i]);
        }
    }
    sort(sciezka.begin(),sciezka.end(),[&](int a,int b){return Query(x,a,b)==a;});
    sciezka.push_back(strzal);
    int pocz=x;
    for(int i=0;i<sciezka.size();i++)
    {
        Bridge(min(pocz,sciezka[i]),max(pocz,sciezka[i]));
        pocz=sciezka[i];
    }
    sciezka.push_back(x);
    for(int i=0;i<sciezka.size();i++)
        dfs(sciezka[i],sasiad[sciezka[i]]);
}
void Solve(int n)
{
    N=n;
    int korzen=rand()%n;
    vector<int> wszyscy;
    for(int i=0;i<n;i++)
        if(i!=korzen)
            wszyscy.push_back(i);
    dfs(korzen,wszyscy);
}

Compilation message (stderr)

meetings.cpp:17:16: error: 'vector' has not been declared
   17 | void dfs(int x,vector<int> Q)
      |                ^~~~~~
meetings.cpp:17:22: error: expected ',' or '...' before '<' token
   17 | void dfs(int x,vector<int> Q)
      |                      ^
meetings.cpp: In function 'void dfs(int, int)':
meetings.cpp:19:8: error: 'Q' was not declared in this scope
   19 |     if(Q.size()==0)
      |        ^
meetings.cpp:21:16: error: 'rand' was not declared in this scope
   21 |     int strzal=rand()%(Q.size());
      |                ^~~~
meetings.cpp:21:24: error: 'Q' was not declared in this scope
   21 |     int strzal=rand()%(Q.size());
      |                        ^
meetings.cpp:24:5: error: 'vector' was not declared in this scope
   24 |     vector<int> sasiad[N],sciezka;
      |     ^~~~~~
meetings.cpp:2:1: note: 'std::vector' is defined in header '<vector>'; did you forget to '#include <vector>'?
    1 | #include"meetings.h"
  +++ |+#include <vector>
    2 | //#include<bits/stdc++.h>
meetings.cpp:24:12: error: expected primary-expression before 'int'
   24 |     vector<int> sasiad[N],sciezka;
      |            ^~~
meetings.cpp:31:13: error: 'sciezka' was not declared in this scope
   31 |             sciezka.push_back(Q[i]);
      |             ^~~~~~~
meetings.cpp:34:13: error: 'sasiad' was not declared in this scope
   34 |             sasiad[mam].push_back(Q[i]);
      |             ^~~~~~
meetings.cpp:37:10: error: 'sciezka' was not declared in this scope
   37 |     sort(sciezka.begin(),sciezka.end(),[&](int a,int b){return Query(x,a,b)==a;});
      |          ^~~~~~~
meetings.cpp:37:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   37 |     sort(sciezka.begin(),sciezka.end(),[&](int a,int b){return Query(x,a,b)==a;});
      |     ^~~~
      |     short
meetings.cpp:42:16: error: 'min' was not declared in this scope
   42 |         Bridge(min(pocz,sciezka[i]),max(pocz,sciezka[i]));
      |                ^~~
meetings.cpp:42:37: error: 'max' was not declared in this scope
   42 |         Bridge(min(pocz,sciezka[i]),max(pocz,sciezka[i]));
      |                                     ^~~
meetings.cpp:47:24: error: 'sasiad' was not declared in this scope
   47 |         dfs(sciezka[i],sasiad[sciezka[i]]);
      |                        ^~~~~~
meetings.cpp: In function 'void Solve(int)':
meetings.cpp:52:16: error: 'rand' was not declared in this scope
   52 |     int korzen=rand()%n;
      |                ^~~~
meetings.cpp:53:5: error: 'vector' was not declared in this scope
   53 |     vector<int> wszyscy;
      |     ^~~~~~
meetings.cpp:53:5: note: 'std::vector' is defined in header '<vector>'; did you forget to '#include <vector>'?
meetings.cpp:53:12: error: expected primary-expression before 'int'
   53 |     vector<int> wszyscy;
      |            ^~~
meetings.cpp:56:13: error: 'wszyscy' was not declared in this scope
   56 |             wszyscy.push_back(i);
      |             ^~~~~~~
meetings.cpp:57:16: error: 'wszyscy' was not declared in this scope
   57 |     dfs(korzen,wszyscy);
      |                ^~~~~~~