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Computer Mathematics Program to GCD Of Differences with Explanation

Computer Mathematics Hard GCD/LCM & Euclid 31 views
This problem helps you practice core Computer Mathematics fundamentals in a practical way. It builds intuition around gcd, difference, all. Let’s break it down step by step so you can implement it confidently.
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Problem Statement

Given n numbers, print gcd of all |ai-a1|.

Input Format

n then n integers.

Output Format

One integer.

Constraints

n>=2

Code Solution

This explanation is written for learning purposes and to help beginners understand the concept clearly.
Compute base=a1. For i>=2 take d=abs(ai-base), g=gcd(g,d). Output g.

Output Example

Input:
4 6 10 14 18
Output:
4

Common Mistakes

- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).

Notes & Extra Practice

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