Compilare: user.cpp: In function ‘int main()’: user.cpp:31:39: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if (((k ^ aux) & (1<<s-1))==(1<<s-1)) ^ user.cpp:31:50: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if (((k ^ aux) & (1<<s-1))==(1<<s-1)) ^