Eroare de compilare: user.cpp:6:13: error: ‘int y1 [30005]’ redeclared as different kind of symbol int y1[30005]; ^ 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:45:25: warning: pointer to a function used in arithmetic [-Wpointer-arith] cin>>x1[i]>>y1[i]>>x2[i]>>y2[i]; ^ user.cpp:45:12: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ cin>>x1[i]>>y1[i]>>x2[i]>>y2[i]; ^ 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:48:16: warning: pointer to a function used in arithmetic [-Wpointer-arith] reverse(y1+1,y1+k+1); ^ user.cpp:48:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] reverse(y1+1,y1+k+1); ^ user.cpp:48:23: warning: pointer to a function used in arithmetic [-Wpointer-arith] reverse(y1+1,y1+k+1); ^ user.cpp:54:47: warning: pointer to a function used in arithmetic [-Wpointer-arith] if(x1[j]<=i && i<=x2[j] && C>=y1[j]) ^ user.cpp:54:47: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] user.cpp:55:31: warning: pointer to a function used in arithmetic [-Wpointer-arith] C+=(y2[j]-y1[j]+1); ^ user.cpp:55:31: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ In file included from /usr/local/include/c++/4.8.0/algorithm:62:0, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_algo.h: In instantiation of ‘void std::__reverse(_RandomAccessIterator, _RandomAccessIterator, std::random_access_iterator_tag) [with _RandomAccessIterator = double (*)(double)throw ()]’: /usr/local/include/c++/4.8.0/bits/stl_algo.h:1472:72: required from ‘void std::reverse(_BIter, _BIter) [with _BIter = double (*)(double)throw ()]’ user.cpp:48:24: required from here /usr/local/include/c++/4.8.0/bits/stl_algo.h:1443:7: error: ISO C++ forbids decrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] --__last;