Compilare: user.cpp: In function ‘void magic(Nod*&)’: user.cpp:44:12: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p -> c = NULL; ^ user.cpp: In function ‘int cauta(int, int)’: user.cpp:38:12: warning: ‘minni’ may be used uninitialized in this function [-Wmaybe-uninitialized] return minni; ^ user.cpp: In function ‘void mache(int, int, int, Nod*&)’: user.cpp:54:37: warning: ‘minni’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a != b) p -> c = v[poz].c; ^