How are these tasks?

Question

Programming

Good afternoon! Help me, comrade experts, I can’t figure it out myself, I’ve planned a lot of things, but I still can’t understand how to solve such problems. Tell me the course of the solution or throw links in your opinion useful material on this topic.
The task itself:
From a communication channel, the quality of which excludes the occurrence of more than one bit replacement error per message, a message is received encoded with a standard Hamming code:
1 1 0 0 1 1 1 1 1 0 1 1
Determine if there is an error in the received message, which bit is distorted during transmission; restore the transmitted message, select the information part in it, determine which decimal number was encoded for transmission in standard binary code.

Answer 1

Habr: Hamming code. An example of how the algorithm works. Everything is very detailed.
There are many implementations in various programming languages ​​on the Internet.

Answer 2

You open a methodology or a reference book on the section where the standard Hamming code is described, and try to decode your message with this code. Based on the results of decoding, you solve the rest of the tasks.

Answer 3

Who is interested in this topic, here is, in my opinion, useful material: www.youtube.com/watch?v=wQLo4O2hNjI