/in/foo.cc: In function 'int main()':
/in/foo.cc:24:8: warning: unused variable 'i' [-Wunused-variable]
  int x,i;
        ^
/in/foo.cc: In function 'int FindMin(int)':
/in/foo.cc:19:9: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return k;
         ^