Compilare: user.cpp: In function ‘int main()’: user.cpp:14:18: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x>='A'&&x<='Z' || x>='a'&& x<='z')ok=0; ^ user.cpp:20:18: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x>='A'&&x<='Z' || x>='a'&& x<='z')nc++; ^