Eroare de compilare: user.cpp:8:20: error: ‘int y1’ redeclared as different kind of symbol int n,q,i,j,p,u,x1,y1,x2,y2,k,dif,sol,val,nr,sum,a[DIM][DIM],s[DIM][DIM]; ^ 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:21:12: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ fin>>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:25:37: warning: pointer to a function used in arithmetic [-Wpointer-arith] nr = s[i][y2] - s[i][y1-1]; ^ user.cpp:25:38: error: invalid types ‘int [301][double (*)(double)throw ()]’ for array subscript nr = s[i][y2] - s[i][y1-1]; ^ user.cpp:27:37: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ v[k].first.second = (y2-y1+1) - nr; ^ user.cpp:32:21: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ if (sum%(y2-y1+1) != 0){ ^ user.cpp:38:19: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ val = (y2-y1+1); ^