## Problems On Array

The following section contains the problem names along with their explanations.
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### Rotate Matrix

Given an unsorted integer array, find the first missing positive integer.

### The Celebrity Problem

Can you find the stranger in the party ?

### Is Sudoko Valid ?

Can check if the Sudoko configuration is valid ?

### Kth smallest element

Given a matrix and k, Find Kth smallest element in a row-column sorted matrix