Hello, Everyone! Today, I have solved three problems on LeetCode, namely, Letter Combination of a Phone Number, Container with Most Water, and Rotate Array. Solving different problems each day will make us think of problems from different angles. There are so many ways of solving a problem. Once you find one way of solving it, don't stop there. Instead, try to optimize the solution further. This will help you find the most efficient way of solving the given problem.
Letter Combination of a Phone Number: To solve this problem we can use the concept of backtracking using just one base condition. Given an input, we need to find all the possible combinations of characters related to certain digits in the input. A base condition will come in handy and will help the function in terminating its execution whenever necessary so that it can solve the problem in a proper way.
Container with Most Water: Here the problem is that we will have to find out a maximum area which can be formed. We are actually traversing the given array using two pointers. While one starts from the extreme beginning of the array the other starts from the opposite end. It this helps us to get a possible solution for the given problem.
Rotate Array: In this problem, we are required to rotate the array by a given number of positions. We can achieve this by slicing the array based on the given position and forming a new array by appending the slices in the right order. This solution solves the problem efficiently.
I hope my experience will be helpful to you.
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