How to find numbers in a sorted array in LeetCode

Editor to share with you how to find numbers in the sorted array in LeetCode. I hope you will get something after reading this article. Let's discuss it together.

Topic description

Count the number of times a number appears in the sorted array.

0 1

If nums [m] = = target:

If isleft:

# currently looking for the left boundary, updating the result to a smaller subscript equal to target, while continuing to search to the left

Res = m if res is None else min (res, m)

E = m-1

Else:

# currently looking for the right boundary, update the result to a larger subscript equal to target, while continuing to search to the right

Res = m if res is None else max (res, m)

S = m + 1

Elif nums [m] < target:

S = m + 1

Else:

E = m-1

Return res

Left = binarySearch (True)

If left is None:

# if the left boundary does not exist, the whole array does not have target, and 0 is returned directly

Return 0

Right = binarySearch (False)

# the end result is the right boundary-left boundary + 1

Return right-left + 1 after reading this article, I believe you have some understanding of "how to find numbers in a sorted array in LeetCode". If you want to know more about it, please follow the industry information channel. Thank you for reading!