Eroare de compilare: user.cpp:13:14: error: ‘short int j1’ redeclared as different kind of symbol short i,j,i1,j1,x1,y1,x2,y2,k,n,m,x,y; ^ 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:13:20: error: ‘short int y1’ redeclared as different kind of symbol short i,j,i1,j1,x1,y1,x2,y2,k,n,m,x,y; ^ 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:243:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:50:4: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ fi>>x1>>y1>>x2>>y2; ^ 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) ^ user.cpp:51:10: error: invalid types ‘short int [200][double(double)throw ()]’ for array subscript b[x1][y1]=1; ^ user.cpp:52:18: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] c[1].x=x1;c[1].y=y1; ^ user.cpp:61:9: error: assignment of function ‘double j1(double)’ i1=1;j1=1;k=1; ^ user.cpp:61:9: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:62:28: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] while(i1<=k && j1<=k) ^