Submission #1263273

#TimeUsernameProblemLanguageResultExecution timeMemory
1263273DeltaStructTraffic (IOI10_traffic)C++20
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; int res = 2e9; int dfs(vector<vector<int>>& G,int x,int p,int s,int A[]){ int m = 0,r = s-A[x]; for (int y:G[x]) if (y!=p){ int t = dfs(G,y,x,s,A); r -= t,m = max(m,t); } res = min(res,max(m,r)); return s-r; } int LocateCentre(int n,int A[],int B[],int C[]){ vector<vector<int>> G(n); for (int i(0);i < n-1;++i) G[B[i]].emplace_back(C[i]),G[C[i]].emplace_back(B[i]); dfs(G,0,-1,accumulate(begin(A),end(A),0),A); return res; }

Compilation message (stderr)

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:15:30: error: no matching function for call to 'begin(int*&)'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                         ~~~~~^~~
In file included from /usr/include/c++/11/bits/algorithmfwd.h:39,
                 from /usr/include/c++/11/bits/stl_algo.h:60,
                 from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from traffic.cpp:1:
/usr/include/c++/11/initializer_list:90:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)'
   90 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
/usr/include/c++/11/initializer_list:90:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                         ~~~~~^~~
In file included from /usr/include/c++/11/string:54,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from traffic.cpp:1:
/usr/include/c++/11/bits/range_access.h:51:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)'
   51 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/11/bits/range_access.h:51:5: note:   template argument deduction/substitution failed:
/usr/include/c++/11/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = int*]':
traffic.cpp:15:30:   required from here
/usr/include/c++/11/bits/range_access.h:51:50: error: request for member 'begin' in '__cont', which is of non-class type 'int*'
   51 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |                                           ~~~~~~~^~~~~
/usr/include/c++/11/bits/range_access.h:61:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&)'
   61 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/11/bits/range_access.h:61:5: note:   template argument deduction/substitution failed:
/usr/include/c++/11/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&) [with _Container = int*]':
traffic.cpp:15:30:   required from here
/usr/include/c++/11/bits/range_access.h:61:56: error: request for member 'begin' in '__cont', which is of non-class type 'int* const'
   61 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |                                                 ~~~~~~~^~~~~
/usr/include/c++/11/bits/range_access.h:90:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::begin(_Tp (&)[_Nm])'
   90 |     begin(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~~~
/usr/include/c++/11/bits/range_access.h:90:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:30: note:   mismatched types '_Tp [_Nm]' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                         ~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
                 from traffic.cpp:1:
/usr/include/c++/11/valarray:1217:5: note: candidate: 'template<class _Tp> _Tp* std::begin(std::valarray<_Tp>&)'
 1217 |     begin(valarray<_Tp>& __va) noexcept
      |     ^~~~~
/usr/include/c++/11/valarray:1217:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:30: note:   mismatched types 'std::valarray<_Tp>' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                         ~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
                 from traffic.cpp:1:
/usr/include/c++/11/valarray:1228:5: note: candidate: 'template<class _Tp> const _Tp* std::begin(const std::valarray<_Tp>&)'
 1228 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
/usr/include/c++/11/valarray:1228:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:30: note:   mismatched types 'const std::valarray<_Tp>' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                         ~~~~~^~~
traffic.cpp:15:37: error: no matching function for call to 'end(int*&)'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                                  ~~~^~~
In file included from /usr/include/c++/11/bits/algorithmfwd.h:39,
                 from /usr/include/c++/11/bits/stl_algo.h:60,
                 from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from traffic.cpp:1:
/usr/include/c++/11/initializer_list:101:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)'
  101 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
/usr/include/c++/11/initializer_list:101:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:37: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                                  ~~~^~~
In file included from /usr/include/c++/11/string:54,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from traffic.cpp:1:
/usr/include/c++/11/bits/range_access.h:71:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
   71 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/11/bits/range_access.h:71:5: note:   template argument deduction/substitution failed:
/usr/include/c++/11/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&) [with _Container = int*]':
traffic.cpp:15:37:   required from here
/usr/include/c++/11/bits/range_access.h:71:48: error: request for member 'end' in '__cont', which is of non-class type 'int*'
   71 |     end(_Container& __cont) -> decltype(__cont.end())
      |                                         ~~~~~~~^~~
/usr/include/c++/11/bits/range_access.h:81:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
   81 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/11/bits/range_access.h:81:5: note:   template argument deduction/substitution failed:
/usr/include/c++/11/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&) [with _Container = int*]':
traffic.cpp:15:37:   required from here
/usr/include/c++/11/bits/range_access.h:81:54: error: request for member 'end' in '__cont', which is of non-class type 'int* const'
   81 |     end(const _Container& __cont) -> decltype(__cont.end())
      |                                               ~~~~~~~^~~
/usr/include/c++/11/bits/range_access.h:100:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
  100 |     end(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~
/usr/include/c++/11/bits/range_access.h:100:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:37: note:   mismatched types '_Tp [_Nm]' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                                  ~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
                 from traffic.cpp:1:
/usr/include/c++/11/valarray:1239:5: note: candidate: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)'
 1239 |     end(valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/11/valarray:1239:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:37: note:   mismatched types 'std::valarray<_Tp>' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                                  ~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
                 from traffic.cpp:1:
/usr/include/c++/11/valarray:1255:5: note: candidate: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)'
 1255 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/11/valarray:1255:5: note:   template argument deduction/substitution failed:
traffic.cpp:15:37: note:   mismatched types 'const std::valarray<_Tp>' and 'int*'
   15 |   dfs(G,0,-1,accumulate(begin(A),end(A),0),A);
      |                                  ~~~^~~