Eroare de compilare: user.cpp:9:18: error: ‘int y0’ redeclared as different kind of symbol int N,M,i,j,r,x0,y0,x1,y1,x2,y2,x3,y3,dx,dy,mijx,mijy,SOL,ok; ^ 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/cstdio:41, from user.cpp:1: /usr/include/bits/mathcalls.h:241:1: error: previous declaration of ‘double y0(double)’ __MATHCALL (y0,, (_Mdouble_)); ^ user.cpp:9:24: error: ‘int y1’ redeclared as different kind of symbol int N,M,i,j,r,x0,y0,x1,y1,x2,y2,x3,y3,dx,dy,mijx,mijy,SOL,ok; ^ 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/cstdio:41, 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:31:30: error: assignment of function ‘double y0(double)’ x0=P[i].x; y0=P[i].y; ^ user.cpp:31:30: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:32:30: error: assignment of function ‘double y1(double)’ x1=P[j].x; y1=P[j].y; ^ user.cpp:32:30: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:34:29: error: ISO C++ forbids using pointer to a function in subtraction [-fpermissive] mijy=y0+(y1-y0)/2; ^ user.cpp:34:33: warning: pointer to a function used in arithmetic [-Wpointer-arith] mijy=y0+(y1-y0)/2; ^ user.cpp:34:24: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] mijy=y0+(y1-y0)/2; ^ user.cpp:36:29: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ dy=abs(mijy-y0); ^