QC1. Limitations of Classical Computers

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Welcome to my blog series on Quantum Computing. This series aims to demystify the complex world of quantum computing and make it accessible to everyone.
What is Quantum Computing? Quantum computing is a type of computer that uses the strange and powerful properties of quantum mechanics to perform certain tasks much faster than regular computers. In normal computers, information is stored as bits that...
Step 1: Accessing the AWS Amplify Console Our journey begins in the AWS Management Console. To start, first choose a Region. This is an important decision as it determines the location of your application's infrastructure. Consider factors like your ...

[A1] - Brute Force Time: O(n^2) Space: O(n^2) class Solution: def generate(self, numRows: int) -> List[List[int]]: # Initialize the triangle with the first row pascal_triangle = [] for i in range(numRows): # S...

YouTube Video https://youtu.be/hfN4VONP4HQ [A1] - Brute Force Time: O(n^2) Space: O(1) class Solution: def twoSum(self, nums: List[int], target: int) -> List[int]: for i in range(len(nums)): for j in range(i+1, len(nums)): ...

LeetCode's Valid Anagram problem checks if two strings, `s` and `t`, are anagrams by comparing character frequencies.

LeetCode's Contains Duplicate problem checks if there are any duplicate elements in a given array, often solved using hash sets or sorting.

Classical computers have been the backbone of our digital age, powering everything from scientific research to business operations. However, they do have their limitations. To understand it better, let's start with an example.
Suppose you are a truck driver and you have to deliver products in 25 different regions throughout the United States.

Now, if you want to know the best route to complete your task, do you know how much time a classical computer will take to give you the output? It will take more than 20,000,000 (20 Million) years. That is crazy, right?

Using the fastest computers during this calculation could reduce some time. But still, classical computers struggle a lot to solve certain problems like dealing with large datasets and large numbers of possible combinations.
Other types of problems that classical computers struggle to solve:


And that is where quantum computers come in.