/in/foo.c: In function 'main':
/in/foo.c:5:11: warning: too many arguments for format [-Wformat-extra-args]
     scanf("%d &d &d",&a,&b,&c);
           ^~~~~~~~~~
/in/foo.c:17:13: warning: left-hand operand of comma expression has no effect [-Wunused-value]
        max-c,mid=b;}
             ^
/in/foo.c:3:19: warning: variable 'mid' set but not used [-Wunused-but-set-variable]
     int a,b,c,max,mid;
                   ^~~
/in/foo.c:22:1: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
 printf("zuida:%d/n",max);
 ^~~~~~~~~~~~~~~~~~~~~~~~