This problem is pretty straightforward. Click here to see the problem. Problem Overview The problem description is one line and pretty simple. It says that we have to find the first unique character from a string and return the index of that character. In the given String, all characters will be English lowercase letters. Suppose […]
First Unique Character in a String | LeetCode 387 | Python | Solution Read More »
Binary Search is one of the most popular searching algorithms. We use this to search specific elements on a sorted list. It doesn’t matter it’s ascending or descending. A binary search is not applicable on an unsorted list. It’s a fast and widely used algorithm. In real life, you might already use this algorithm without
Click here to see the problem details on LeetCode. Reverse a string is a pretty common type of problem. We all know how to reverse a string. But in this problem, we are not allowed to reverse the entire string. We have to reverse only vowels. We all know about vowels. Let’s see a visual
Reverse Vowels of a String | LeetCode 345 | Python | Solution Read More »
Intro When we hear the word tree before we know the tree of computer science, the image of the tree of real-life floats in our eyes. The concept of the tree in Computer Science is similar to a real-life tree. But it’s the inverse version of a real-life tree. That is, the root of the
Intro Markdown is a light Markup language for formatting text and more readable content. It’s easy to learn, and you will not regret it after learning it. If you are a content writer or a programmer who needs to write documentation or tech content on your website, you might have to learn it. A most
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Click here to see the problem details. And read the problem details. Pretty simple problem. We will receive a 2D array. Where array[i] is the list of ith customer money from the different bank account, and we have to find out the wealthiest customer’s total from the list. After that, we have to return the
Richest Customer Wealth | LeetCode 1672 | Python | Solution Read More »
Date object is pretty useful. Often, you have to use it If you use JavaScript. Not only current time and date, but also we can do more than that using this object. But I am not going to write all of them. First of all, we have to create this object from the new Date()
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Click here to see the problem details on LeetCode. Pretty simple Binary Tree problem. We can solve this using the Level Order Traversal algorithm. This way, we traverse a tree level by level. After each level completion, we calculate the average of all node values of that level. And then, it will be appended in
Average of Levels in Binary Tree | LeetCode 637 | Python | Solution Read More »
I already have an article about it. Click here to see it. I am not going to details of it but the code implementation. Queue is also a linear data structure. It follows the principle of First In First Out, and which is also known as FIFO. There are mainly two operations in Queue. One
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I already have an article about it. Click here to see it. I am not going to details of it but the code implementation. Stack is a linear data structure. It follows the principle of Last In First Out, and which is also known as LIFO. There are mainly two operations in Stack. One is
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