python_by_example/interm/interm03.py

class interm003:

    def int_array(self):
        """Ask the user for a list of five integers. Store them in an array.
        Sort the list and display it in reverse order."""
        from array import array
        nums = array ('i', [])
        print("Se te solicitarán 5 números")
        for n in range(5):
            num = int(input(f"{n+1} Ingresa un número: "))
            nums.append(num)
        nums = sorted(nums)
        nums.reverse()
        print(nums)

    def rand_5(self):
        """Create an array which will store a list of integers. Generate five
        random numbers and store them in the array. Display the array (showing
        each item on a separate line)"""
        from array import array
        from random import randint
        nums = array ('i', [])
        for _ in range(5):
            nums.append(randint(1,100))
        for num in nums:
            print(num)

    def range_save(self):
        """Ask the user to enter numbers. If they enter a number between 10 and
        20, save it in the array, otherwise display the message \"Outside the
        range\". Once five numbers have been successfully added, display the
        message \"Thank you\" and display the array with each item shown on a
        separate line."""
        from array import array
        nums = array ('i', [])
        while len(nums) < 5:
            num = int(input("Ingresa un número (10-20): "))
            if 10 <= num <= 20:
                nums.append(num)
            else:
                print("Fuera de rango")
        print("Gracias")
        for num in nums:
            print(num)

    def repeated(self):
        """Create an array which contains five numbers (two of which should be
        repeated). Display the whole array to the user. Ask the user to enter
        one of the numbers from the array and then display a message saying how
        many times that number appears in the list."""
        from array import array
        nums = array ('i', [1,1,2,3,3])
        print('Números en el array: ', ', '.join(map(str, nums.tolist())))
        sel = int(input("Ingresa un número del array: "))
        if sel in nums:
            print(f"{sel} aparece {nums.count(sel)} veces en el array")
        else:
            print(f"{sel} no es parte del array")

    def two_arrays(self):
        """Create two arrays (one containing three numbers that the user enters
        and one containing a set of five random numbers). Join these two arrays
        together into one large array. Sort this large array and display it so
        that each number appears on a separate line."""
        from array import array
        from random import randint
        nums_1 = array ('i', [])
        nums_2 = array ('i', [])
        for _ in range(5):
            nums_1.append(randint(1,100))
        while len(nums_2) < 3:
            num = int(input("Ingresa un número: "))
            nums_2.append(num)
        nums = nums_1+nums_2
        nums = sorted(nums)
        for num in nums:
            print(num)

    def array_dels(self):
        """Ask the user to enter five numbers. Sort them into order and present
        them to the user. Ask them to select one of the numbers. Remove it from
        the original array and save it in a new array."""
        from array import array
        nums = array ('i', [])
        dels = array ('i', [])
        print("Se te solicitarán 5 números")
        for n in range(5):
            num = int(input(f"{n+1} Ingresa un número: "))
            nums.append(num)
        nums = sorted(nums)
        print('Números en el array: ', ', '.join(map(str, nums)))
        while True:
            sel = int(input("Ingresa un número del array: "))
            if sel in nums:
                nums.remove(sel)
                dels.append(sel)
                break
        print('Array original: ', ', '.join(map(str, nums)))
        print('Array números borrados: ', ', '.join(map(str, dels)))

    def sel_one(self):
        """Display an array of five numbers. Ask the user to select one of the
        numbers. Once they have selected a number, display the position of that
        item in the array. If they enter something that is not in the array,
        ask them to try again until they select a relevant item."""
        from array import array
        from random import randint
        nums = array ('i', [])
        while len(nums) < 5:
            num = randint(1,100)
            if num not in nums:
                nums.append(num)
        print(f"Array: {', '.join(map(str, nums))}")
        while True:
            sel = int(input("Ingresa un número del array: "))
            if sel in nums:
                print(f"{sel} esta en el índice {nums.index(sel)} del array")
                break
            else:
                print(f"{sel} no petenece al array")

    def decim_array(self):
        """Create an array of five numbers between 10 and 100 which each have
        two decimal places. Ask the user to enter a whole number between 2 and
        5. If they enter something outside of that range, display a suitable
        error message and ask them to try again until they enter a valid amount.
        Divide each of the numbers in the array by the number the user entered
        and display the answers shown to two decimal places."""
        from array import array
        from random import uniform
        nums = array ('f', [])
        print("Array: ", end='')
        while len(nums) < 5:
            num = uniform(10.00, 100.00)
            num = round(num, 2)
            if num not in nums:
                nums.append(num)
                if len(nums) < 5:
                    print(num, end=', ')
                else:
                    print(num)
        while True:
            num = int(input("Ingresa un número entre 2 y 5: "))
            if 2 <= num <=5:
                for n in range(len(nums)):
                    div = round(nums[n]/num, 2)
                    print(f"{round(nums[n],2)}/{num} = {div}")
                break
            else:
                print("Fuera de rango")