Eroare de compilare: user.cpp:22:37: error: ‘int y0’ redeclared as different kind of symbol int n,l,x,px[nmax],py[nmax],nr,x0=1,y0=1,n1,m1,rez,pozpx[nmax],pozpy[nmax]; ^ 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:242:1: error: previous declaration of ‘double y0(double)’ __MATHCALL (y0,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:75:33: error: ISO C++ forbids decrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] if(!v[i].c || !v[i].d)y0--; ^ user.cpp:75:33: error: lvalue required as decrement operand user.cpp:99:27: warning: pointer to a function used in arithmetic [-Wpointer-arith] m[k+x0][j+y0]=1; ^ user.cpp:99:29: error: invalid types ‘bool [210][double (*)(double)throw ()]’ for array subscript m[k+x0][j+y0]=1; ^ user.cpp:101:13: warning: pointer to a function used in arithmetic [-Wpointer-arith] n1=y0+2*n-1; ^ user.cpp:101:15: warning: pointer to a function used in arithmetic [-Wpointer-arith] n1=y0+2*n-1; ^ user.cpp:101:14: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] n1=y0+2*n-1; ^