Eroare de compilare: user.cpp:12:5: error: ‘int time’ redeclared as different kind of symbol int time,dfsRoot,rootChildren,n,nr; ^ 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/basic_string.h:39, from /usr/include/c++/4.8/string:52, from /usr/include/c++/4.8/random:41, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from user.cpp:4: /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 articulationPoint(int)’: user.cpp:16:7: error: ISO C++ forbids incrementing a pointer of type ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ [-fpermissive] ++time; ^ user.cpp:16:7: error: lvalue required as increment operand user.cpp:17:31: error: invalid conversion from ‘time_t (*)(time_t*)throw () {aka long int (*)(long int*)throw ()}’ to ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’ [-fpermissive] dfs_discover[u]=dfs_low[u]=time; ^ user.cpp:18:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<G[u].size(); ++j) ^ user.cpp: In function ‘int main()’: user.cpp:57:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biconex.in","r",stdin); ^ user.cpp:58:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biconex.out","w",stdout); ^ user.cpp:60:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:63:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^