Skip to main content

ZapFinder

Jan 23, 2021LeifMessinger
Loading...

More Python Posts

hex to rgb

Nov 19, 2022CodeCatch

1 like • 2 views

def hex_to_rgb(hex):
return tuple(int(hex[i:i+2], 16) for i in (0, 2, 4))
hex_to_rgb('FFA501') # (255, 165, 1)

Differentiate Between type() and instance()

May 31, 2023CodeCatch

0 likes • 0 views

class Rectangle:
pass
class Square(Rectangle):
pass
rectangle = Rectangle()
square = Square()
print(isinstance(rectangle, Rectangle)) # True
print(isinstance(square, Rectangle)) # True
print(isinstance(square, Square)) # True
print(isinstance(rectangle, Square)) # False

find parity outliers

Nov 19, 2022CodeCatch

0 likes • 0 views

from collections import Counter
def find_parity_outliers(nums):
return [
x for x in nums
if x % 2 != Counter([n % 2 for n in nums]).most_common()[0][0]
]
find_parity_outliers([1, 2, 3, 4, 6]) # [1, 3]

Append to a file

Jun 1, 2023CodeCatch

0 likes • 0 views

filename = "data.txt"
data = "Hello, World!"
with open(filename, "a") as file:
file.write(data)

return multiple values from a function

Jun 1, 2023CodeCatch

0 likes • 2 views

def calculate_values():
value1 = 10
value2 = 20
return value1, value2
result1, result2 = calculate_values()
print("Result 1:", result1)
print("Result 2:", result2)

Radix sort

Nov 19, 2022CodeCatch

0 likes • 1 view

# Python program for implementation of Radix Sort
# A function to do counting sort of arr[] according to
# the digit represented by exp.
def countingSort(arr, exp1):
n = len(arr)
# The output array elements that will have sorted arr
output = [0] * (n)
# initialize count array as 0
count = [0] * (10)
# Store count of occurrences in count[]
for i in range(0, n):
index = (arr[i]/exp1)
count[int((index)%10)] += 1
# Change count[i] so that count[i] now contains actual
# position of this digit in output array
for i in range(1,10):
count[i] += count[i-1]
# Build the output array
i = n-1
while i>=0:
index = (arr[i]/exp1)
output[ count[ int((index)%10) ] - 1] = arr[i]
count[int((index)%10)] -= 1
i -= 1
# Copying the output array to arr[],
# so that arr now contains sorted numbers
i = 0
for i in range(0,len(arr)):
arr[i] = output[i]
# Method to do Radix Sort
def radixSort(arr):
# Find the maximum number to know number of digits
max1 = max(arr)
# Do counting sort for every digit. Note that instead
# of passing digit number, exp is passed. exp is 10^i
# where i is current digit number
exp = 1
while max1/exp > 0:
countingSort(arr,exp)
exp *= 10
# Driver code to test above
arr = [ 170, 45, 75, 90, 802, 24, 2, 66]
radixSort(arr)
for i in range(len(arr)):
print(arr[i]),