Compilare: user.cpp: In function ‘int main()’: user.cpp:16:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[i]>='A'&&a[i]<='Z'||a[i]>='a'&&a[i]<='z') ^ user.cpp:18:28: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while(a[i]>='A'&&a[i]<='Z'||a[i]>='a'&&a[i]<='z') ^