Check if a number is a Perfect Square - Using Looping Method | Java Programming Interview Question
In this video, we tackle a common coding problem seen in interviews at top MNCs: checking if a given integer is a perfect square. Using clear examples, we break down what it means for a number to be a perfect square and then walk you through a step-by-step approach to solve the problem.
First, we examine a straightforward looping method to identify perfect squares, followed by an optimized solution to reduce iterations and enhance efficiency, especially for large inputs. Whether you’re preparing for interviews or honing your coding skills, this tutorial offers valuable insights into problem-solving and optimization techniques.
00:00 - Introduction to checking if a number is a perfect square.
00:32 - Explanation of perfect squares with examples (25, 64, 32).
04:50 - Looping approach.
06:05 - Writing the code.
09:34 - Optimise looping approach.
12:24 - Explanation of when to stop.
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