Compilare: user.cpp: In function ‘void citire()’: user.cpp:31:10: warning: unused variable ‘oo’ [-Wunused-variable] int p,op,oo; ^ user.cpp: In function ‘int bin(int)’: user.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp:20:5: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(x-xx>=n) return n; ^