Eroare de compilare: user.cpp:13:8: error: ‘int y1’ redeclared as different kind of symbol int x1,y1,n,m,x,y,i,j,viz[NMAX],gr[NMAX]; ^ In file included from /usr/include/features.h:346:0, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/os_defines.h:39, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/c++config.h:420, from /usr/local/include/c++/4.8.0/iosfwd:38, from /usr/local/include/c++/4.8.0/ios:38, 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/bits/mathcalls.h:242:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:24:26: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ for (i=1; i<=m; i++) fi >> x1 >> y1, a[x1].pb(y1), a[y1].pb(x1); ^ In file included from /usr/local/include/c++/4.8.0/fstream:38:0, from user.cpp:1: /usr/local/include/c++/4.8.0/istream:872:5: error: initializing argument 1 of ‘std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = double(double)throw ()]’ operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) ^ user.cpp:24:50: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘std::vector<int>::value_type {aka int}’ [-fpermissive] for (i=1; i<=m; i++) fi >> x1 >> y1, a[x1].pb(y1), a[y1].pb(x1); ^ In file included from /usr/local/include/c++/4.8.0/vector:64:0, from user.cpp:3: /usr/local/include/c++/4.8.0/bits/stl_vector.h:919:7: error: initializing argument 1 of ‘void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]’ [-fpermissive] push_back(value_type&& __x) ^ user.cpp:24:57: error: invalid types ‘std::vector<int> [7501][double(double)throw ()]’ for array subscript for (i=1; i<=m; i++) fi >> x1 >> y1, a[x1].pb(y1), a[y1].pb(x1); ^