Python Program to Find Missing Number in an Array (1 to N)

Published: 10 March 2025
on channel: Developer Guide 🧑‍💻

193

In this video, we'll learn how to find the missing number in an array of numbers from 1 to N using the mathematical formula n(n+1)/2*. This approach is efficient and avoids unnecessary loops, making it ideal for coding interviews and competitive programming. Watch till the end for a step-by-step explanation and example!

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