Where Code Meets Clarity
Reverse Number is a staple interview problem: given a non-negative integer N, output the integer obtained by writing its digits in the opposite order. The task reinforces integer arithmetic, string handling, and edge-case thinking. 🔹 Problem Statement Input: A single non-negative integer N (0 ≤ N ≤ 1018). Output: The number obtained by reversing the … Read more
Count Digits is a classic warm-up problem: given a non-negative integer N, determine how many digits it contains. Although trivial to humans, it teaches loop control, integer math, and logarithms—skills that resurface in harder interview questions. 🔹 Problem Statement Input: A single non-negative integer N (0 ≤ N ≤ 1018). Output: The count of decimal … Read more
This single-file Google DSA sheet is beginner-friendly and structured to guide candidates from interview overview to hands-on practice, with high-impact coding questions organized by topic. Designed for clarity and SEO, this Google DSA sheet starts with a crisp overview of Google’s interview rounds, then for each topic gives a 1–2 line explanation followed by an … Read more
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