Eroare de compilare: user.cpp:16:14: error: ‘int y1’ redeclared as different kind of symbol int tri,ceas,y1=INF,y2; ^ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/c++config.h:482, from /usr/include/c++/5/iosfwd:38, from /usr/include/c++/5/ios:38, from /usr/include/c++/5/istream:38, from /usr/include/c++/5/fstream:38, 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:43:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(P[i].y<y1) ^ user.cpp:44:19: error: assignment of function ‘double y1(double)’ y1=P[i].y,tri=i; ^ user.cpp:44:19: error: cannot convert ‘int’ to ‘double(double) throw ()’ in assignment