Eroare de compilare: user.cpp:8:27: error: ‘int free’ redeclared as different kind of symbol int w[102][365], S, P, K, free; ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/ext/string_conversions.h:41, from /usr/include/c++/4.8/bits/basic_string.h:2815, from /usr/include/c++/4.8/string:52, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/stdlib.h:488:13: error: previous declaration of ‘void free(void*)’ extern void free (void *__ptr) __THROW; ^ user.cpp: In function ‘int main()’: user.cpp:26:58: error: ISO C++ forbids incrementing a pointer of type ‘void (*)(void*)throw ()’ [-fpermissive] for(int i = 1; i <= P; ++i) if(w[p][0] == 0) free++; ^ user.cpp:26:58: error: lvalue required as increment operand user.cpp:27:15: warning: the address of ‘void free(void*)’ will always evaluate as ‘true’ [-Waddress] fout<<free; ^