oofnivek

import sys
from PIL import Image


def compare_pixels(png1, png2):
  pixels1 = list(png1.getdata())
  pixels2 = list(png2.getdata())
  if len(pixels1) != len(pixels2):
    return -1 # different pixel count
  match = 0

dongwooklee96

from random import randint

def bubble_sort(arr):
    n = len(arr)

    for i in range(n):
        done_sort = True

        for j in range(n - i - 1):
            if arr[j] > arr[j + 1]: