1. 53,07,52,01,98,10,87,25,63,46} {keyword sequence, for example, manually perform direct insertion sort, hill sorting (5, 2, 1) for incremental, quick sort, merge sort algorithm, complete:
(1) write on every sort of every sort at the end of the key sequence;
(2) analysis of what sort is stable, which is not stable, and for each kind of unstable sorting method give an unstable instance,