• May 31, 2023 •CodeCatch
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# Prompt user for a decimal number decimal = int(input("Enter a decimal number: ")) # Convert decimal to binary binary = bin(decimal) # Convert decimal to hexadecimal hexadecimal = hex(decimal) # Display the results print("Binary:", binary) print("Hexadecimal:", hexadecimal)
• Nov 19, 2022 •CodeCatch
# Python program to reverse a linked list # Time Complexity : O(n) # Space Complexity : O(n) as 'next' #variable is getting created in each loop. # Node class class Node: # Constructor to initialize the node object def __init__(self, data): self.data = data self.next = None class LinkedList: # Function to initialize head def __init__(self): self.head = None # Function to reverse the linked list def reverse(self): prev = None current = self.head while(current is not None): next = current.next current.next = prev prev = current current = next self.head = prev # Function to insert a new node at the beginning def push(self, new_data): new_node = Node(new_data) new_node.next = self.head self.head = new_node # Utility function to print the linked LinkedList def printList(self): temp = self.head while(temp): print temp.data, temp = temp.next # Driver program to test above functions llist = LinkedList() llist.push(20) llist.push(4) llist.push(15) llist.push(85) print "Given Linked List" llist.printList() llist.reverse() print "\nReversed Linked List" llist.printList()
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def sum_of_powers(end, power = 2, start = 1): return sum([(i) ** power for i in range(start, end + 1)]) sum_of_powers(10) # 385 sum_of_powers(10, 3) # 3025 sum_of_powers(10, 3, 5) # 2925
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from functools import partial def curry(fn, *args): return partial(fn, *args) add = lambda x, y: x + y add10 = curry(add, 10) add10(20) # 30
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# Function to multiply two matrices def multiply_matrices(matrix1, matrix2): # Check if the matrices can be multiplied if len(matrix1[0]) != len(matrix2): print("Error: The number of columns in the first matrix must be equal to the number of rows in the second matrix.") return None # Create the result matrix filled with zeros result = [[0 for _ in range(len(matrix2[0]))] for _ in range(len(matrix1))] # Perform matrix multiplication for i in range(len(matrix1)): for j in range(len(matrix2[0])): for k in range(len(matrix2)): result[i][j] += matrix1[i][k] * matrix2[k][j] return result # Example matrices matrix1 = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] matrix2 = [[10, 11], [12, 13], [14, 15]] # Multiply the matrices result_matrix = multiply_matrices(matrix1, matrix2) # Display the result if result_matrix is not None: print("Result:") for row in result_matrix: print(row)
• Dec 18, 2025 •CodeCatch
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def insertion_sort(arr): # Traverse through 1 to len(arr) for i in range(1, len(arr)): key = arr[i] # Move elements of arr[0..i-1], that are greater than key, # to one position ahead of their current position j = i - 1 while j >= 0 and key < arr[j]: arr[j + 1] = arr[j] j -= 1 arr[j + 1] = key # Example usage: arr = [12, 11, 13, 5, 6, 7, 8, 10] insertion_sort(arr) print("Sorted array is:", arr)