Rotate array by k positions in Java | Leetcode problems and solutions In hindi
#unusualtechie
In this video, we tackle a common interview question: rotating an array to the right by k positions. This problem frequently appears on coding platforms like LeetCode. We'll walk you through the solution step-by-step in Java, explaining both the logic and the implementation details. By the end of this video, you'll have a solid understanding of how to approach and solve this problem efficiently.
🔹 Problem Statement: Given an integer array nums, rotate the array to the right by k steps, where k is non-negative.
Explanation:
Reverse the Entire Array:
Before: [1, 2, 3, 4, 5, 6, 7]
After: [7, 6, 5, 4, 3, 2, 1]
Reverse the First k Elements:
Before: [7, 6, 5, 4, 3, 2, 1]
After: [5, 6, 7, 4, 3, 2, 1]
Reverse the Remaining Elements:
Before: [5, 6, 7, 4, 3, 2, 1]
After: [5, 6, 7, 1, 2, 3, 4]
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