• Nov 18, 2022 •AustinLeath
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mydict = {'carl':40, 'alan':2, 'bob':1, 'danny':0} # How to sort a dict by value Python 3> sort = {key:value for key, value in sorted(mydict.items(), key=lambda kv: (kv[1], kv[0]))} print(sort) # How to sort a dict by key Python 3> sort = {key:mydict[key] for key in sorted(mydict.keys())} print(sort)
• Nov 19, 2022 •CodeCatch
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# Input for row and column R = int(input()) C = int(input()) # Using list comprehension for input matrix = [[int(input()) for x in range (C)] for y in range(R)]
# Python program for Plotting Fibonacci # spiral fractal using Turtle import turtle import math def fiboPlot(n): a = 0 b = 1 square_a = a square_b = b # Setting the colour of the plotting pen to blue x.pencolor("blue") # Drawing the first square x.forward(b * factor) x.left(90) x.forward(b * factor) x.left(90) x.forward(b * factor) x.left(90) x.forward(b * factor) # Proceeding in the Fibonacci Series temp = square_b square_b = square_b + square_a square_a = temp # Drawing the rest of the squares for i in range(1, n): x.backward(square_a * factor) x.right(90) x.forward(square_b * factor) x.left(90) x.forward(square_b * factor) x.left(90) x.forward(square_b * factor) # Proceeding in the Fibonacci Series temp = square_b square_b = square_b + square_a square_a = temp # Bringing the pen to starting point of the spiral plot x.penup() x.setposition(factor, 0) x.seth(0) x.pendown() # Setting the colour of the plotting pen to red x.pencolor("red") # Fibonacci Spiral Plot x.left(90) for i in range(n): print(b) fdwd = math.pi * b * factor / 2 fdwd /= 90 for j in range(90): x.forward(fdwd) x.left(1) temp = a a = b b = temp + b # Here 'factor' signifies the multiplicative # factor which expands or shrinks the scale # of the plot by a certain factor. factor = 1 # Taking Input for the number of # Iterations our Algorithm will run n = int(input('Enter the number of iterations (must be > 1): ')) # Plotting the Fibonacci Spiral Fractal # and printing the corresponding Fibonacci Number if n > 0: print("Fibonacci series for", n, "elements :") x = turtle.Turtle() x.speed(100) fiboPlot(n) turtle.done() else: print("Number of iterations must be > 0")
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#question1.py def rose(n) : if n==0 : yield [] else : for k in range(0,n) : for l in rose(k) : for r in rose(n-1-k) : yield [l]+[r]+[r] def start(n) : for x in rose(n) : print(x) #basically I am printing x for each rose(n) file print("starting program: \n") start(2) # here is where I call the start function
• May 31, 2023 •CodeCatch
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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)
• Jun 16, 2024 •lagiath
print('hello, world')