Compilare: user.cpp: In function ‘int go(int, int)’: user.cpp:27:5: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (type==2) ^ user.cpp:30:5: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (type==3) ^ user.cpp: In function ‘void bacK(int, int, int)’: user.cpp:65:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (code=valid(1,ni,nj,dir)) ^ user.cpp:71:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (code=valid(2,ni,nj,dir)) ^ user.cpp:77:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (code=valid(3,ni,nj,dir)) ^ user.cpp: In function ‘int main()’: user.cpp:90:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%d%d%d",&can[1],&can[2],&can[3]); ^