🔒 bubblesort problem

[rich spear]

hey folks, I'm pretty new to programming in general and currently trying to learn python 🙂

I'm prepping for my finals atm and don't know how to proceed with my bubblesort code:

`arr = []
length = int(input("wie lang soll das array sein?"))

for g in range(length):
arr.append (random.randrange(1,200,1))

print(arr)

i = 1
j = 1
while i < length - 1 :

while j < length - 1:
    
    if arr[j] > arr[j+1]:
        zwischen = arr[j+1]  
        arr[j+1] = arr[j]
        arr[j] = zwischen
        j = j+1
        if j == length -1 :
            j = 1
            
i = i+1

print(arr)

`
i know that my code runs forever but I need a hint on how to design j in a way that the program just jumps to the beginning (more efficient ways such as list length descrease will be done later)

[wind umbra]

@rich spear

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[brisk hemlock]

first of all, use
```py
code
```
to format your code pls

i know that my code runs forever but I need a hint on how to design j in a way that the program just jumps to the beginning
the easiest way is to use for instead of while, but the 2 won't be that different anyways
the problem arises here

while i < length - 1 :
    while j < length - 1:
        if arr[j] > arr[j+1]:
            zwischen = arr[j+1]  
            arr[j+1] = arr[j]
            arr[j] = zwischen
            j = j+1
            if j == length -1 :
                j = 1  # <--
```you reset `j` before it can break out of the loop, so you have an infinite
to fix that, just move the resetting to somewhere outside the `while j < length - 1:` block

and also, j = j+1 shouldn't be in the if check

[wind umbra]

Python help channel closed

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