day#5

#Q21 WAP to check if a number is Armstrong
def is_armstrong(number):
    # Convert the number to a string to iterate through its digits
    num_str = str(number)
    num_digits = len(num_str)

    # Calculate the sum of the cubes of the digits
    sum_cubes = sum(int(digit) ** num_digits for digit in num_str)

    # Check if the sum of cubes is equal to the original number
    if sum_cubes == number:
        return True
    else:
        return False

# Example usage
number = int(input("Enter a number: "))

if is_armstrong(number):
    print(number, "is an Armstrong number")
else:
    print(number, "is not an Armstrong number")

#Q21(part 2 way) WAP to check if a number is Armstrong
n=int(input("Enter a number"))
num=n
sum=0
while num!=0:
  d=num%10
  num=int(num/10)
  sum=sum+d**3
if(sum==n):
  print("armstrong")
else:
  print("not armstrong")

#Q22 WAP to print sum of number and its reverse?
number = input("Enter a number: ")

reverse_number = number[::-1] 
sum_of_number = int(number) + int(reverse_number)

print("Sum of the number and its reverse:", sum_of_number)



#Q23 WAP to input two numbers and check if numbers are twin prime
number1 = int(input("Enter a number 1: "))
number2 = int(input("Enter a number 2: "))

def is_prime(number):
    if number < 2:
        return False
    for i in range(2, int(number**0.5) + 1):
        if number % i == 0:
            return False
    return True

def are_twin_primes(num1, num2):
    if is_prime(num1) and is_prime(num2) and abs(num1 - num2) == 2:
        return True
    return False

if are_twin_primes(number1, number2):
    print(f"{number1} and {number2} are twin primes.")
else:
    print(f"{number1} and {number2} are not twin primes.")

#needs to learn how u define a function


#Q24 WAP to input time in 24 hour format and convert it into 12 hr without using date time module?
#example
#input 22:05:00
#output 10:05:00PM

def convert_to_12hr(time):
    # Split the time into hours and minutes
    hours, minutes = time.split(":")

    # Convert the hours and minutes to integers
    hours = int(hours)
    minutes = int(minutes)

    # Determine the meridiem (AM or PM)
    meridiem = "AM" if hours < 12 else "PM"

    # Convert hours to 12-hour format
    if hours == 0:
        hours = 12
    elif hours > 12:
        hours -= 12

    # Create the formatted time string
    formatted_time = f"{hours:02d}:{minutes:02d} {meridiem}"

    return formatted_time

# Example usage
time_24hr = input("Enter the time in 24-hour format (HH:MM): ")
time_12hr = convert_to_12hr(time_24hr)
print("Time in 12-hour format:", time_12hr)