Eroare de compilare: main.cpp:10:20: error: 'long long int time [105]' redeclared as different kind of symbol long long time[NMAX]; ^ In file included from /usr/include/pthread.h:24:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/gthr-default.h:35, from /usr/include/x86_64-linux-gnu/c++/6/bits/gthr.h:148, from /usr/include/c++/6/ext/atomicity.h:35, from /usr/include/c++/6/bits/ios_base.h:39, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/time.h:192:15: note: previous declaration 'time_t time(time_t*)' extern time_t time (time_t *__timer) __THROW; ^~~~ main.cpp: In function 'long long int DFS(int)': main.cpp:24:32: warning: pointer to a function used in arithmetic [-Wpointer-arith] maxx = max(maxx, time[a] + DFS(y)); ^ main.cpp:24:41: warning: pointer to a function used in arithmetic [-Wpointer-arith] maxx = max(maxx, time[a] + DFS(y)); ^ main.cpp:24:42: error: no matching function for call to 'max(long long int&, time_t (*)(time_t*) throw ())' maxx = max(maxx, time[a] + DFS(y)); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&) max(const _Tp& __a, const _Tp& __b) ^~~ /usr/include/c++/6/bits/stl_algobase.h:219:5: note: template argument deduction/substitution failed: main.cpp:24:42: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'time_t (*)(time_t*) throw () {aka long int (*)(long int*) throw ()}') maxx = max(maxx, time[a] + DFS(y)); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) max(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ /usr/include/c++/6/bits/stl_algobase.h:265:5: note: template argument deduction/substitution failed: main.cpp:24:42: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'time_t (*)(time_t*) throw () {aka long int (*)(long int*) throw ()}') maxx = max(maxx, time[a] + DFS(y)); ^ main.cpp: In function 'int main()': Non zero exit status: 1