Help needed for a first-year computer science exercise

Hello,

Rather than an image of the code, we prefer it to be in the message, with the source icon and the Python language which gives:

for i in range(4): print(i)

Your statement indicates that the power of 2 is a positional calculation from right to left, so you cannot simply take i. After that, you need to extract the position of the binary with a binary[i] syntax.

I understand the code in the message, but after that I don't see how to do it from right to left, and even less how to extract the position of the binary since we haven't covered it in the course.

I'm sorry, but even after searching for a long time, I still haven't found what needs to be put.

Thank you for that, but honestly I'm not lying to you, I have 3 other assignments in the homework and I don't know what the teacher has in mind, we don't have the course, he just gave us some tools to supposedly help us.

I even started the 2nd exercise but I am still having difficulties

here is the code for the 2nd and the instructions linked

:

def dec_to_bin(decimal):
binary=""
quotient = decimal // 2
remainder = decimal % 2
binary = remainder + binary
while quotient!=0 :
decimal = quotient
remainder = decimal % 2
binary = remainder + binary
quotient = decimal//2

# in the end, as long as the binary does not have a size of 4
while len(binary) != 4:
# we add "0"s to the left
binary = ...

return binary

# The lines below test your code... don't touch them!
# If an AssertionError appears... it means your code is not correct...
assert dec_to_bin(10) == '1010'
assert dec_to_bin(15) == '1111'
assert dec_to_bin(0) == '0000'

I didn't check if this site offers a Python course.
Search for the site "Zeste De Savoir" the course "Zeste de Python" written by "entwanne".

but actually I don't have much time because the assignment is due on Monday.