Compilare: user.cpp: In function 'void dfsCV(int)': user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp:55: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void afis_graf()': user.cpp:108: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:125: warning: 'from' is used uninitialized in this function user.cpp:125: warning: 'to' is used uninitialized in this function user.cpp:125: warning: 'nave' is used uninitialized in this function