Eroare de compilare: user.cpp:12:31: error: ‘int time’ redeclared as different kind of symbol int N,M,S,F,ds[Nmax],df[Nmax],time,found[Nmax],low[Nmax],T[Nmax]; ^ In file included from /usr/include/pthread.h:26:0, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/gthr-default.h:35, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/gthr.h:148, from /usr/local/include/c++/4.8.0/ext/atomicity.h:33, from /usr/local/include/c++/4.8.0/bits/ios_base.h:39, from /usr/local/include/c++/4.8.0/ios:42, from /usr/local/include/c++/4.8.0/istream:38, from /usr/local/include/c++/4.8.0/fstream:38, from user.cpp:1: /usr/include/time.h:186:15: error: previous declaration of ‘time_t time(time_t*)’ extern time_t time (time_t *__timer) __THROW; ^ user.cpp: In function ‘void DFS(int)’: user.cpp:48:33: error: ISO C++ forbids incrementing a pointer of type ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ [-fpermissive] found[node] = low[node] = ++time; ^ user.cpp:48:33: error: lvalue required as increment operand user.cpp:46:9: warning: unused variable ‘s’ [-Wunused-variable] int s = 0; ^