Question 3:
G.iven a link list, detect whether it's circular using only one loop.
Tips: Below implementation is allowed
for( ... )
{
...
}
The following implementations is NOT allowed
...
for( ... )
{
...
for( ... ) {...}
}
...
or
...
for( p = list->head, q = list->head; p != NULL && q != NULL; p = p->next )
{
...
}
...
for( ... )
{
...
}
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