Challenge 7: Find First Unique Integer in an Array
Explore how to implement an optimized function to find the first unique integer in an array using hash maps in C#. This lesson helps you understand hashing fundamentals and improve efficiency over brute force methods.
We'll cover the following...
We'll cover the following...
Problem statement
Implement a function, findFirstUnique(int[] arr, int size), which takes an array and its size as input and returns the first unique integer in the array. The function returns -1 if no unique number is ...