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LeetCode Challenge #6: Decompress Run-Length Encoded List

Writer's note: Found this draft sitting too long in Drafts. Lost the timing to publish in May so backdated it to May but published in July. Problem...

LeetCode Challenge #6: Decompress Run-Length Encoded List

LeetCode Challenge #5: Defanging an IP Address

Problem Statement Given a valid (IPv4) IP address, return a defanged version of that IP address. A defanged IP address replaces every period "." with...

LeetCode Challenge #5: Defanging an IP Address

LeetCode Challenge #4: How Many Numbers Are Smaller Than the Current Number

Problem statement: Given the array nums, for each nums[i] find out how many numbers in the array are smaller than it. That is, for each nums[i] you...

LeetCode Challenge #4: How Many Numbers Are Smaller Than the Current Number

LeetCode Challenge #3: Jewels and Stones

Problem Statement You're given strings J representing the types of stones that are jewels, and S representing the stones you have. Each character in...

LeetCode Challenge #3: Jewels and Stones

LeetCode Challenge #2: Number of Steps to Reduce a Number to Zero

Problem statement: Given a non-negative integer num, return the number of steps to reduce it to zero. If the current number is even, you have to...

LeetCode Challenge #2: Number of Steps to Reduce a Number to Zero

LeetCode Challenge #1: Kids With the Greatest Number of Candies

Problem statement: Given the array candies and the integer extraCandies, where candies[i] represents the number of candies that the ith kid has. For...

LeetCode Challenge #1: Kids With the Greatest Number of Candies