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HackerRank Python Solution - Search Algorithm - Ice Cream Parlor

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Two friends like to pool their money and go to the ice cream parlor. They always choose two distinct flavors and they spend all of their mon...

Image Background Removal using Python

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In the world of image processing and manipulation, one common task is removing backgrounds from images. This can be particularly useful for ...

LeetCode Solution - Problem Valid Parentheses

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Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine i...

LeetCode Solution - Problem Longest Substring Without Repeating Characters

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Given a string s, find the length of the longest substring without repeating characters. Example 1: Input: s = "abcabcbb" Output: ...

LeetCode Solution - Problem Repeated DNA Sequences

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The DNA sequence is composed of a series of nucleotides abbreviated as 'A', 'C', 'G', and 'T'.  For example,...

LeetCode Solution - Problem Longest Common Prefix

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Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string ...

LeetCode Solution - Problem Reverse String

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Write a function that reverses a string. The input string is given as an array of characters s. You must do this by modifying the input arra...

LeetCode Solution - Problem Pow(x, n)

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Implement pow(x, n), which calculates x raised to the power n (i.e., x^n). Example 1: Input: x = 2.00000, n = 10 Output: 1024.00000

LeetCode Solution - Problem Factorial Trailing Zeroes

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Given an integer n, return the number of trailing zeroes in n!. Note that n! = n * (n - 1) * (n - 2) * ... * 3 * 2 * 1. Example 1: Input: n ...

LeetCode Solution - Problem Palindrome Number

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Given an integer x, return true if x is a palindrome, and false otherwise.  Example 1: Input: x = 121 Output: true Explanation: 121 reads as...

LeetCode Solution - Problem Reverse Integer

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Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer ...