Be honest when doing experiments in the lab

For the first time, I am looking for someone else's Program ,
The teacher asked: Did you do it yourself?
Q: No.
The teacher said: This program is wrong. Do you have this?
I replied: better than this.
The teacher said: Next time you write it.

The second time, I found another program,
The teacher asked: Did you do it yourself?
Q: Yes.
Instructor's finger Code Q: What does this mean?
Q: This is the entry point of the program.
The teacher asked: What about this?
I replied :......
The teacher asked: What about this?
I replied :......
---------------- 50 minutes later ---------------
I feel wrong. I stood up and said, "No, the program is not written by me. Can you tell me?
The teacher was explicit: Be honest and sign your account. (The signature is over)

Finally ,...... Be honest.