Compilare: user.cpp: In function 'int main()': user.cpp:90: warning: comparison between signed and unsigned integer expressions user.cpp:93: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int NodStart()': user.cpp:63: warning: 'poz' may be used uninitialized in this function user.cpp: In function 'int main()': user.cpp:88: warning: 'poz' may be used uninitialized in this function