I once learned of an application of Hamming codes?, but want to learn more of the topic, but can't find any resources because I am not 100% sure on what this topic is called.
For example, let's same i had an array of data like a 2x2 or 4x4 or 8x8 grid of data. Let's say the array contains only 0s and 1s. Let's then say I want to run an algorithm that returns a desired value of a certain cell in the array, based off all of the 0s and 1s. Anyone can send me the data prepopulated in any way with 0s and 1s. However, I can make a single change to one value in the whole grid. In doing so, I can always run an algorithm to return the desired value of a desired cell.
Does anyone know what I am talking about and can point me in the right direction? I think i saw a youtube video about this concept but not sure what it is called. I want to find the algorithm that works to reveal the cell/value.
This is what i was referring to: https://www.youtube.com/watch?v=as7Gkm7Y7h4&ab_channel=Stand-upMaths