foo.cc: In function 'int main()':
foo.cc:10:10: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   10 |   while(i=0)
      |         ~^~
foo.cc:13:5: warning: statement has no effect [-Wunused-value]
   13 |    i/10;
      |    ~^~~
foo.cc:6:14: warning: unused variable 'x' [-Wunused-variable]
    6 |  int min,max,x,y,z,l;
      |              ^
foo.cc:6:16: warning: unused variable 'y' [-Wunused-variable]
    6 |  int min,max,x,y,z,l;
      |                ^
foo.cc:6:18: warning: unused variable 'z' [-Wunused-variable]
    6 |  int min,max,x,y,z,l;
      |                  ^

[Hydro](https://hydro.ac)提供评测服务