Grokking Oracle Coding Interview
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Solution: Asteroid Collision

Problem Statement

You are given an integer array asteroids of size n, where asteroids[i] represents the size and direction of the i<sup>th</sup> asteroid.

The size of an asteroid is represented by the absolute value of asteroids[i], and its direction is indicated by the integer's sign: positive for rightward and negative for leftward. Each asteroid moves at the same speed.

When two asteroids collide, the smaller one shatters. If they are of equal size, both are destroyed. Asteroids moving in the same direction never collide.

Return the `final state

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