Compilare: user.cpp: In function ‘int main()’: user.cpp:51:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(dir=='N') ^ user.cpp:60:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(dir=='S') ^ user.cpp:69:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(dir=='E') ^ user.cpp:78:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(dir=='V') ^