Compilare: user.cpp: In function ‘int main()’: user.cpp:73:10: warning: unused variable ‘s’ [-Wunused-variable] int nr,s,c,m; ^ user.cpp: In function ‘int binary2(int)’: user.cpp:52:20: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized] int st=1, dr = n,mid; ^ user.cpp: In function ‘int main()’: user.cpp:52:20: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized]