插入排序(InsertionSort)

while 版本

# while版本
origin = [9, 10, 2, 8, 5, 6, 1]
nums = [0] + origin
length = len(nums)

for i in range(2,length):
    nums[0] = nums[i]
    j = i - 1
    while nums[j] > nums[0]:
        nums[j + 1] = nums[j]
        j -= 1
    else:
        if j + 1 != i:
            nums[j + 1] = nums[0]

print(nums)

for版本

# for版本
origin = [9, 10, 2, 8, 5, 6, 1]
nums = [0] + origin
length = len(nums)
for i in range(2,length):
    nums[0] = nums[i]
    for j in range(i-1, 0, -1):
        if nums[0] >= nums[j]:
            nums[j + 1] = nums[0]
            break
        else:
            nums[j + 1] = nums[j]
    else:
        nums[j] = nums[0]

print(nums)

倒序

# 倒序
origin = [9, 10, 2, 8, 5, 6, 1]
nums = [0] + origin
length = len(nums)
for i in range(2,length):
    nums[0] = nums[i]
    for j in range(i-1, 0, -1):
        if nums[0] <= nums[j]:
            nums[j + 1] = nums[0]
            break
        else:
            nums[j + 1] = nums[j]
    else:
        nums[j] = nums[0]

print(nums)

二分树查找版

# 使用二分树查找，则算法不一定稳定
origin = [1, 0, 9, 10, 2, 8, 5, 6]
nums = [0] + origin
length = len(nums)
for i in range(2,length):
    nums[0] = nums[i]
    minindex = 1
    maxindex = i
    while minindex = nums[0]:
            if nums[index - 1] <= nums[0]:
                target = index
                break
            maxindex = index
        else:
            if nums[index + 1] >= nums[0]:
                target = index + 1
                break
            minindex = index
    else:
        target = maxindex

    if target == i: continue
    nums[target+1:i+1] = nums[target:i]
    nums[target] = nums[0]

print(nums)