Eroare de compilare: user.cpp:15:19: error: ‘int y1’ redeclared as different kind of symbol int n,m,k,i,x1,x2,y1,y2,maxx,j,nr; ^ 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/iostream: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:34:7: error: assignment of function ‘double y1(double)’ y1=lower_bound(coloane.begin(),coloane.end(),dreptunghi[i].y1)-coloane.begin()+1; ^ user.cpp:34:7: error: cannot convert ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type {aka int}’ to ‘double(double)throw ()’ in assignment user.cpp:36:13: error: invalid types ‘int [3000][double(double)throw ()]’ for array subscript a[x1][y1]+=dreptunghi[i].val; ^ user.cpp:37:13: error: invalid types ‘int [3000][double(double)throw ()]’ for array subscript a[x2][y1]-=dreptunghi[i].val; ^ user.cpp:41:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=linii.size();++i) ^ user.cpp:42:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=coloane.size();++j) ^