제출 #83984

#제출 시각아이디문제언어결과실행 시간메모리
83984Linst90새로운 문제 (POI13_luk)C++11
컴파일 에러
0 ms0 KiB
#include<iostream> #include<vector> using namespace::std; int delay[300005]; vector<vector<int>> v; void DFS(int i,int d){ //cout<<i<<'\n'; delay[i]=d; for(auto a:v[i]){ //cout<<a<<'\n'; if(a!=1&&!delay[a]){ DFS(a,d+1); } } } int main(){ ios_base::sync_with_stdio(0); cin.tie(0); int n; cin>>n; for(int i=0;i<n+1;i++){ vector<int> t; v.push_back(t); } for(int i=0,l,r;i<n-1;i++){ cin>>l>>r; //delay[i+1]=-1; v[l].push_back(r); v[r].push_back(l); } DFS(1,0); int maxn=0; for(int i=1;i<=n;i++){ //cout<<i<<' '<<v[i].end()-v[i].begin()-delay[i]<<'\n'; maxn=max(maxn,v[i].end()-v[i].begin()-delay[i]); } cout<<maxn<<'\n'; }

컴파일 시 표준 에러 (stderr) 메시지

luk.cpp: In function 'int main()':
luk.cpp:37:55: error: no matching function for call to 'max(int&, __gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type)'
         maxn=max(maxn,v[i].end()-v[i].begin()-delay[i]);
                                                       ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/ostream:38,
                 from /usr/include/c++/7/iostream:39,
                 from luk.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:219:5: note:   template argument deduction/substitution failed:
luk.cpp:37:55: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type {aka long int}')
         maxn=max(maxn,v[i].end()-v[i].begin()-delay[i]);
                                                       ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/ostream:38,
                 from /usr/include/c++/7/iostream:39,
                 from luk.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:265:5: note:   template argument deduction/substitution failed:
luk.cpp:37:55: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type {aka long int}')
         maxn=max(maxn,v[i].end()-v[i].begin()-delay[i]);
                                                       ^