Rearrange the following lines of code so that the pointer p points to the smaller of a and b and then sets that value to zero. Not all lines are useful.

^int* p;
 +if (a < b)
 +{
 . p = &a;
 - p = a;
 - *p = a;
 .}
 .else
 .{
 . p = &b;
 - p = b;
 - *p = b;
 .}
 .*p = 0;