# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1263273 | DeltaStruct | Traffic (IOI10_traffic) | C++20 | Compilation error | 0 ms | 0 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); | ~~~^~~