Check if Isogram using Python
The challenge
An isogram is a word that has no repeating letters, consecutive or non-consecutive. Implement a function that determines whether a …
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403 articles about python development, tools, and best practices
Find the Longest Common Prefix using Python
The challenge
Write a function to find the longest common prefix string amongst an array of strings. This string manipulation challenge requires …
Read Article →Count and Say with Python
The challenge
he count-and-say sequence is the sequence of integers with the first five terms as following:
1 is read off as "one 1" or 11 …
The Plus One problem solved with Python
The challenge
Given a non-empty array of digits representing a non-negative integer, increment one to the integer. This challenge involves array …
Read Article →Solving the Single Number problem in Python
The challenge
Given a non-empty array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have …
Read Article →Rotate a Matrix List in Python
The challenge
You are given an n x n 2D matrix representing an image.
Rotate the image by 90 degrees (clockwise).
Note:
You have to rotate the image …
Read Article →Find the Intersection of Two Arrays in Python
The challenge
Given two arrays, write a function to compute their intersection.
Example 1:
Example 2:
Note:
- Each element in the result should …
Rotate an Array K Times in Python
The challenge
Given an array, rotate the array to the right by k steps, where k is non-negative.
Example 1:
Example 2:
Constraints:
1 <= …
Python Splices reimplemented in Java
Python has a fantastic feature called slices. It allows you to work with a list, set or string by it’s index items.
E.g.:
string_sample = …Solving Two Sum in Python
The challenge
Given an array of integers, return indices of the two numbers such that they add up to a specific target.
You may assume that each input …
Read Article →Get the Next Small Integer in Python
The challenge
Write a function:
def solution(A)
that, given an array A of N integers, returns the smallest positive integer (greater than 0) that does …
Read Article →Find All Numbers Disappeared in an Array using Python
The challenge
Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once.
Find all the …
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