Compilare: user.cpp: In function ‘int main()’: user.cpp:17:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x[i]>='a'&&x[i]<='z'||x[i]>='A'&&x[i]<='Z') ^ user.cpp:20:24: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x[i+1]>='a'&&x[i+1]<='z'||x[i+1]>='A'&&x[i+1]<='Z') ^