Submission #316101

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
316101	2020-10-25 08:23:51	moonrabbit2	Roller Coaster Railroad (IOI16_railroad)	C++17	Compilation error	0 ms	0 KiB

railroad

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#include "railroad.h"
#include <bits/stdc++.h>
#define N 500005
#define x first
#define y second
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
struct edge{ll c;int u,v;};
int n,c,group[N],c_g,p[N],en,x;
ll ans,sum[N],from[N];
vector<int> vec;
vector<int> g1[N];
edge g2[N];
int fi(int x)
{
    if(p[x]==x)
        return x;
    return p[x]=fi(p[x]);
}
void un(int x,int y)
{
    x=fi(x),y=fi(y);
    if(x==y)
        return;
    p[y]=x;
}
void dfs(int curr)
{
    group[curr]=c_g;
 
 
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Compilation message (stderr)

In file included from /usr/include/c++/9/bits/stl_algobase.h:71,
                 from /usr/include/c++/9/vector:60,
                 from railroad.h:3,
                 from railroad.cpp:1:
/usr/include/c++/9/bits/predefined_ops.h: In instantiation of 'constexpr bool __gnu_cxx::__ops::_Iter_comp_iter<_Compare>::operator()(_Iterator1, _Iterator2) [with _Iterator1 = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _Iterator2 = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _Compare = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]':
/usr/include/c++/9/bits/stl_algo.h:974:20:   required from '_ForwardIterator std::__unique(_ForwardIterator, _ForwardIterator, _BinaryPredicate) [with _ForwardIterator = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _BinaryPredicate = __gnu_cxx::__ops::_Iter_comp_iter<__gnu_cxx::__normal_iterator<int*, std::vector<int> > >]'
/usr/include/c++/9/bits/stl_algo.h:1036:27:   required from '_FIter std::unique(_FIter, _FIter, _BinaryPredicate) [with _FIter = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _BinaryPredicate = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]'
railroad.cpp:45:79:   required from here
/usr/include/c++/9/bits/predefined_ops.h:143:18: error: no match for call to '(__gnu_cxx::__normal_iterator<int*, std::vector<int> >) (int&, int&)'
  143 |         { return bool(_M_comp(*__it1, *__it2)); }
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~