Someone please explain how

Question

A=[1,2,3,4,1]
for n in A:
A[n]=0
print(A)

Answer 1

It steps like this.
A = [1, 2, 3, 4, 1]

#1
n = A[0] -> 1
A[n] = 0
A = [1, 0, 3, 4, 1]

#2
n = A[1] -> 0
A[0] = 0
A = [0, 0, 3, 4, 1]

#3
n = A[2] -> 3
A[3] = 0
A = [0, 0, 3, 0, 1]

#4
n = A[3] -> 0
A[0] = 0
A = [0, 0, 3, 0, 1]

#5
n = A[4] -> 1
A[1] = 0
A = [0, 0, 3, 0, 1]

So the result is [0, 0, 3, 0, 1]

Answer 2

https://code.sololearn.com/cmO97aNWU1Hy/?ref=app

Answer 3

Thanks ShortCode I'll delete to avoid confusion.

Answer 4

Louis I thought he is asking about a question in a challenge.

Answer 5

Louis ...ShortCode... Yess..this question was in the challenge..and i didnt understand how it works...
Now..i get it..thanks a lot .. :)