Eroare de compilare: user.cpp:6:26: error: ‘int y1’ redeclared as different kind of symbol int arie,nrcam, armax,x1,y1,x2,y2; ^~ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/c++config.h:507, from /usr/include/c++/6/cassert:43, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:33, from user.cpp:1: /usr/include/bits/mathcalls.h:251:1: note: previous declaration ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:52:26: error: assignment of function ‘double y1(double)’ y1 = j; ^ user.cpp:52:26: error: cannot convert ‘int’ to ‘double(double) throw ()’ in assignment user.cpp:63:23: warning: the address of ‘double y1(double)’ will always evaluate as ‘true’ [-Waddress] out<<x1<<" "<<y1<<" "<<x2<<" "<<y2<<"\n"; ^~