Compilare: user.cpp: In function ‘int eval(int, int)’: user.cpp:31: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:84: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int eval(int, int)’: user.cpp:37: warning: ‘poz’ may be used uninitialized in this function