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m10 - Lecture C10 Response to'Muddiest Part of the Lecture...

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Lecture C10 Response to 'Muddiest Part of the Lecture Cards' (7 respondents) 1) Is insertion sort just bubble sort ? No. Both algorithms have a worst case complexity of O(n 2 ), but the insertions sort algorithm has a better best case complexity than the bubble sort algorithm. The insertion sort algorithm inserts each item directly into its proper place in the list. It does so by comparing the value to each item in the already sorted list by swapping place with the preceding element until it finds its proper place in the list. InsertionSort(A, n) for j in 2..n loop key:= A[j] i := j-1 while i > 0 and A[i] > key A[i+1]:= A[i] i:= i-1 A[i+1] end loop := key The bubble sort algorithm compares each item to the neighboring item and the items are swapped if needed. This process is repeated until a pass through the list does no longer generate any swaps between items. last := length; for I in 1 .. Last –1 loop for J in I+1 .. Last loop if List(I) < List(J) then swap list(i) and list(j) end if end loop end loop
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