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[Insertion sort implementation] python

May 05, 2018 pm 02:53 PM
pythonaccomplishsort

This article shares with you the code for insertion sort implementation in Python. Friends who are interested can take a look at

Thoughts:

It is similar to sorting out cards: take out one card, insert it into the correct position in the hand (compare it with each card in the hand from right to left)

Insertion sorting pseudo code:

INSERTION-SORT(A)
for j <-- 2 to length[A]
    do key <-- A[j]
    i <-- j-1
    while i>0 and A[i]>key
        do A[i+1] <-- A[i]
            i <-- i-1
    A[i+1] <--  key
python实现:
def insertion_sort(A)
    for j in range(1 , len(A));
    key = A[j]
    i = j - 1
    while i>=0 and A[i]>key;
        A[i+1] = A [i]
        i = i - 1
    A[i+1] = key
A = [5,2,4,6,1,3]
insertion_sort(A)
print(A)


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