/in/foo.c: In function 'main':
/in/foo.c:8:9: warning: unused variable 'min' [-Wunused-variable]
     int min, max, temp;
         ^~~
/in/foo.c:25:5: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
     printf("%d ", max);
     ^~~~~~~~~~~~~~~~~~