Eroare de compilare: user.cpp:10:19: error: ‘int j1’ redeclared as different kind of symbol int n, m, i1, i2, j1, j2, nr, i; ^ In file included from /usr/include/features.h:357:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/os_defines.h:39, from /usr/include/i386-linux-gnu/c++/4.8/bits/c++config.h:420, from /usr/include/c++/4.8/iosfwd:38, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:240:1: error: previous declaration of ‘double j1(double)’ __MATHCALL (j1,, (_Mdouble_)); ^ user.cpp: In function ‘void build(int, int, int)’: user.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<a[s].size()&&j<a[d].size()) ^ user.cpp:24:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<a[s].size()&&j<a[d].size()) ^ user.cpp:37:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;i<a[s].size();i++) ^ user.cpp:40:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;j<a[d].size();j++) ^ user.cpp: In function ‘void query(int, int, int)’: user.cpp:53:34: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(v[a[nod][mid]].y>=j1) ^ user.cpp: In function ‘int main()’: user.cpp:90:12: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ fin>>i1>>j1>>i2>>j2; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from user.cpp:1: /usr/include/c++/4.8/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) ^