Eroare de compilare: user.cpp:8:34: error: ‘int time’ redeclared as different kind of symbol int n,m,low[nmax+5],disc[nmax+5],time=0,gg=0,st[nmax+5],nr_sol=0; ^ In file included from /usr/include/pthread.h:24:0, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/gthr-default.h:35, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/gthr.h:148, from /usr/include/c++/5/ext/atomicity.h:35, from /usr/include/c++/5/bits/ios_base.h:39, from /usr/include/c++/5/ios:42, from /usr/include/c++/5/ostream:38, from /usr/include/c++/5/iostream:39, from user.cpp:3: /usr/include/time.h:192:15: note: previous declaration ‘time_t time(time_t*)’ extern time_t time (time_t *__timer) __THROW; ^ user.cpp: In function ‘void tarjan(int)’: user.cpp:21:9: warning: ISO C++ forbids incrementing a pointer of type ‘time_t (*)(time_t*) throw () {aka long int (*)(long int*) throw ()}’ [-Wpointer-arith] time++; ^ user.cpp:21:9: error: lvalue required as increment operand user.cpp:22:19: error: invalid conversion from ‘time_t (*)(time_t*) throw () {aka long int (*)(long int*) throw ()}’ to ‘int’ [-fpermissive] low[k]=disc[k]=time; ^ user.cpp: In function ‘int main()’: user.cpp:64:13: warning: unused variable ‘z’ [-Wunused-variable] int x,y,z; ^ user.cpp:67:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&n,&m); ^ user.cpp:79:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^