Eroare de compilare: user.cpp:19:52: error: ‘int time’ redeclared as different kind of symbol int color[50001], pred[50001], d[50001], f[50001], time; ^ In file included from /usr/include/pthread.h:26:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35, from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148, from /usr/include/c++/4.8/ext/atomicity.h:33, from /usr/include/c++/4.8/bits/ios_base.h:39, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:3: /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_VISIT(int)’: user.cpp:69:15: warning: pointer to a function used in arithmetic [-Wpointer-arith] time=time+1; ^ user.cpp:69:9: error: assignment of function ‘time_t time(time_t*)’ time=time+1; ^ user.cpp:69:9: error: cannot convert ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ to ‘time_t(time_t*)throw () {aka long int(long int*)throw ()}’ in assignment user.cpp:70:9: error: invalid conversion from ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ to ‘int’ [-fpermissive] d[u]=time; ^ user.cpp:91:15: warning: pointer to a function used in arithmetic [-Wpointer-arith] time=time+1; ^ user.cpp:91:9: error: assignment of function ‘time_t time(time_t*)’ time=time+1; ^ user.cpp:91:9: error: cannot convert ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ to ‘time_t(time_t*)throw () {aka long int(long int*)throw ()}’ in assignment user.cpp:92:9: error: invalid conversion from ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ to ‘int’ [-fpermissive] f[u]=time; ^ user.cpp: In function ‘void DFS()’: user.cpp:104:9: error: assignment of function ‘time_t time(time_t*)’ time=0; ^ user.cpp:104:9: error: cannot convert ‘int’ to ‘time_t(time_t*)throw () {aka long int(long int*)throw ()}’ in assignment