Compilare: user.cpp: In function ‘int go(int, int)’: user.cpp:19:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(type==2) ^ user.cpp:22:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(type==3) ^ user.cpp: In function ‘void back(int, int, int)’: user.cpp:53:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (code=valid(1,ni,nj,dir)) ^ user.cpp:59:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (code=valid(2,ni,nj,dir)) ^ user.cpp:65:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (code=valid(3,ni,nj,dir)) ^