Problem link Given an array of integers, We have to return the running sum of that array. Suppose, we have an array of integers like [1, 2, 3]. As per the problem, the result of this array will be [1,…
Here is the problem link to see the problem details. The problem description is very concise and easy to understand. Given an array of integers, we have to return how many of them contain an even number of digits. Example…
Here is the problem link. See the problem explanation first and try to understand the problem. It’s an easy linked list problem. We have to return the middle node from a linked list. We don’t have to check the emptiness…
This problem is not about programming related. It’s about the database. Here is the link to the problem. There is a table called the world. It contains some information about countries around the world. These are name, continent, area, population,…
Here is the link to the problem. An easy problem to solve. The problem description is easy. Given a string and we have to returns it in lowercase. We can solve this problem in many ways. The first one is…
This one is a basic linked list problem. Here is the problem link. See the detailed explanation there. This problem is very simple and straightforward. We have to delete the given node. We don’t need to check anything and don’t…
This problem is all about designing a stack data structure. Here is the problem link. See the detailed explanation there. To solve this problem, we have to write the most common stack operations. A stack is an abstract data structure.…
It’s a classic programming problem and a very beginner type of problem. Here is the link to the problem. See the explanation in LeetCode first. And try to understand the problem. First, we will be given a number n as…
Here is the link to the problem. See the full explanation on LeetCode first. Try to understand the problem. It’s an easy problem. So the problem is, we have to return the length of the last word from the given…
LeetCode is one of the most popular websites for practicing programming problems. It has a large collection of programming problems to solve. It also helps you to upgrade problem-solving skills one step further. I just love this website. I am…