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Palindrome checker

Nov 19, 2022CodeCatch
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Bubble sort

Nov 19, 2022CodeCatch

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# Python program for implementation of Bubble Sort
def bubbleSort(arr):
n = len(arr)
# Traverse through all array elements
for i in range(n-1):
# range(n) also work but outer loop will repeat one time more than needed.
# Last i elements are already in place
for j in range(0, n-i-1):
# traverse the array from 0 to n-i-1
# Swap if the element found is greater
# than the next element
if arr[j] > arr[j+1] :
arr[j], arr[j+1] = arr[j+1], arr[j]
# Driver code to test above
arr = [64, 34, 25, 12, 22, 11, 90]
bubbleSort(arr)
print ("Sorted array is:")
for i in range(len(arr)):
print ("%d" %arr[i]),

Create a Pascal’s Triangle

May 31, 2023CodeCatch

0 likes • 1 view

def generate_pascals_triangle(num_rows):
triangle = []
for row in range(num_rows):
# Initialize the row with 1
current_row = [1]
# Calculate the values for the current row
if row > 0:
previous_row = triangle[row - 1]
for i in range(len(previous_row) - 1):
current_row.append(previous_row[i] + previous_row[i + 1])
# Append 1 at the end of the row
current_row.append(1)
# Add the current row to the triangle
triangle.append(current_row)
return triangle
def display_pascals_triangle(triangle):
for row in triangle:
for number in row:
print(number, end=" ")
print()
# Prompt the user for the number of rows
num_rows = int(input("Enter the number of rows for Pascal's Triangle: "))
# Generate Pascal's Triangle
pascals_triangle = generate_pascals_triangle(num_rows)
# Display Pascal's Triangle
display_pascals_triangle(pascals_triangle)

Check Armstrong Number

May 31, 2023CodeCatch

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# Function to check Armstrong number
def is_armstrong_number(number):
# Convert number to string to iterate over its digits
num_str = str(number)
# Calculate the sum of the cubes of each digit
digit_sum = sum(int(digit) ** len(num_str) for digit in num_str)
# Compare the sum with the original number
if digit_sum == number:
return True
else:
return False
# Prompt user for a number
number = int(input("Enter a number: "))
# Check if the number is an Armstrong number
if is_armstrong_number(number):
print(number, "is an Armstrong number.")
else:
print(number, "is not an Armstrong number.")

Append to a file

Jun 1, 2023CodeCatch

0 likes • 1 view

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

key of minimum value

Nov 19, 2022CodeCatch

0 likes • 0 views

def key_of_min(d):
return min(d, key = d.get)
key_of_min({'a':4, 'b':0, 'c':13}) # b

check prop lambda

Nov 19, 2022CodeCatch

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def check_prop(fn, prop):
return lambda obj: fn(obj[prop])
check_age = check_prop(lambda x: x >= 18, 'age')
user = {'name': 'Mark', 'age': 18}
check_age(user) # True