Missing Integer in Array

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Introduction

In programming, it is common to encounter problems where we need to find a missing element in a given data structure. In this challenge, we will be given an array of 32 non-negative integers and we need to find an integer that is not present in the input array. The challenge is to solve this problem using minimal memory.


Skills Graph

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Find Missing Integer

Problem

Given an array of 32 non-negative integers, find an integer that is not present in the input array. The solution should use minimal memory.

Requirements

To solve this problem, we need to consider the following requirements:

  • The input array contains non-negative integers.
  • The range of the integers is not specified, but we need to discuss the approach for 4 billion integers.
  • We need to implement the solution for an array of 32 integers.
  • We cannot assume that the input array is valid.

Example Usage

Here are some examples of how the function should behave:

  • If the input is None or an empty array, the function should raise an exception.
  • If there is an integer excluded from the input array, the function should return that integer.
  • If there isn't an integer excluded from the input array, the function should return None.

Summary

In this challenge, we learned how to find a missing integer in an array of non-negative integers using minimal memory. We discussed the requirements and provided examples of how the function should behave. By following the requirements and examples, we can implement a solution that solves the problem efficiently and accurately.

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