🔒 Pascal triangle but

[green isle]

This code throws an error and I'm not sure why
https://pastebin.com/MC2PpNvr

[civic carbon]

@green isle

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[crisp moat]

what's the error?

[green isle]

grabB = prevRow[grabA + 1]
IndexError: list index out of range

Traceback (most recent call last):
  File "C:\Program Files\JetBrains\PyCharm 2024.1.4\plugins\python\helpers\pydev\pydevd.py", line 1551, in _exec
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "C:\Program Files\JetBrains\PyCharm 2024.1.4\plugins\python\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "C:\Users\best\PycharmProjects\coding\Python\Assignments\Pascal\pascal.py", line 40, in <module>
    createTriangle(7)
  File "C:\Users\best\PycharmProjects\coding\Python\Assignments\Pascal\pascal.py", line 26, in createTriangle
    grabB = prevRow[grabA + 1]
IndexError: list index out of range

[toxic hinge]

whats the err 😆

ah

[green isle]

Yep :/

The pastebin has the full code

And using grabB = prevRow[j + 1] has the same effect

[crisp moat]

Your code was awfully complex

I rewrote it

wanna see?

[green isle]

Sure

[crisp moat]

!e

def createTriangle(height):
    """Create a Pascal's triangle with given height."""
    triangle = []

    while len(triangle) < height:
        if len(triangle) == 0:
            triangle.append([1])
        elif len(triangle) == 1:
            triangle.append([1, 1])
        else:
            prevRow = triangle[-1]
            print(f"{prevRow=}")

            currRow = []
            for j in range(1, len(prevRow)):
                currNumber = prevRow[j - 1] + prevRow[j]
                currRow.append(currNumber)

            triangle.append([1] + currRow + [1])

    return triangle


for row in createTriangle(7):
    print(row)

[civic carbon]

:white_check_mark: Your 3.12 eval job has completed with return code 0.

001 | prevRow=[1, 1]
002 | prevRow=[1, 2, 1]
003 | prevRow=[1, 3, 3, 1]
004 | prevRow=[1, 4, 6, 4, 1]
005 | prevRow=[1, 5, 10, 10, 5, 1]
006 | [1]
007 | [1, 1]
008 | [1, 2, 1]
009 | [1, 3, 3, 1]
010 | [1, 4, 6, 4, 1]
... (truncated - too many lines)

Full output: https://paste.pythondiscord.com/VHGKPXAZB6MFLESFAZ6GXZ77R4

[crisp moat]

variable names like i and j make my brain hurt

[green isle]

iteration and jiteration :P

[crisp moat]

now I know

[green isle]

Wow, this is a lot more simplified than what I was thinking

[crisp moat]

yep

your way would probably work fine, but because I'm lazy, I made it simpler so that I could get it working

[green isle]

Fair enough

Thanks

[civic carbon]

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🔒 Pascal triangle but