Python Exercises: Check if each number is prime in a list of numbers

Last update on December 21 2024 13:10:36 (UTC/GMT +8 hours)

Extract Specified Vowels

Write a Python program to check if each number is prime in a given list of numbers. Return True if all numbers are prime otherwise False.

Sample Data:
([0, 3, 4, 7, 9]) -> False
([3, 5, 7, 13]) -> True
([1, 5, 3]) -> False

Sample Solution-1:

Python Code:

# Define a function named 'test' that takes two inputs: 'text' (a string) and 'n' (an integer).
def test(text, n):
    result_str = ''  # Initialize an empty string to store the vowels.
    for i in text:
        # Iterate through each character 'i' in the 'text' string.
        if i in 'aioueAEIOU':
            # Check if the current character 'i' is a vowel (lowercase or uppercase).
            result_str += i  # If it's a vowel, append it to 'result_str'.
    # Check if the length of 'result_str' is greater than or equal to 'n'.
    if len(result_str) >= n:
        # If it is, return the first 'n' characters of 'result_str', which are the vowels.
        return result_str[:n]
    else:
        # If 'n' is greater than the number of vowels, return a message indicating so.
        return 'n is less than the number of vowels present in the string.'

# Define the original string 'word' and the number 'n'.
word = "Python"
n = 2
print("Original string and number:", word, ",", n)

# Call the 'test' function to extract the first 'n' vowels from the string 'word'.
print("Extract the first n number of vowels from the said string:")
print(test(word, n))

# Define another string 'word' and a different number 'n'.
word = "Python Exercises"
n = 3
print("\nOriginal string and number:", word, ",", n)

# Call the 'test' function with the new inputs to extract the first 'n' vowels from the string.
print("Extract the first n number of vowels from the said string:")
print(test(word, n))

# Define a string 'word' consisting of only vowels and a different number 'n'.
word = "AEIOU"
n = 3
print("\nOriginal string and number:", word, ",", n)

# Call the 'test' function with the vowel-only string and 'n' to extract the first 'n' vowels.
print("Extract the first n number of vowels from the said string:")
print(test(word, n)) 

Sample Output:

Original list of numbers:
[0, 3, 4, 7, 9]
Check if each number is prime in the said list of numbers:
False

Original list of numbers:
[3, 5, 7, 13]
Check if each number is prime in the said list of numbers:
True

Original list of numbers:
[1, 5, 3]
Check if each number is prime in the said list of numbers:
False

Flowchart:

Sample Solution-2:

Python Code:

# Define a function named 'test' that takes two inputs: 'text' (a string) and 'n' (an integer).
def test(text, n):
    # Use a list comprehension to create a list 't' containing characters from 'text' that are vowels (lowercase or uppercase).
    t = [x for x in text if x in 'aeiouAEIOU']
    # Check if the length of the 't' list is less than 'n'.
    if len(t) < n:
        # If 'n' is greater than the number of vowels in 'text', return a message indicating so.
        return 'n is less than the number of vowels present in the string.'
    else:
        # If there are enough vowels, join the first 'n' vowels from 't' into a string and return it.
        return ''.join(t[:n])
	
# Define the original string 'word' and the number 'n'.
word = "Python"
n = 2
print("Original string and number:", word, ",", n)

# Call the 'test' function to extract the first 'n' vowels from the string 'word'.
print("Extract the first n number of vowels from the said string:")
print(test(word, n))

# Define another string 'word' and a different number 'n'.
word = "Python Exercises"
n = 3
print("\nOriginal string and number:", word, ",", n)

# Call the 'test' function with the new inputs to extract the first 'n' vowels from the string.
print("Extract the first n number of vowels from the said string:")
print(test(word, n))

# Define a string 'word' consisting of only vowels and a different number 'n'.
word = "AEIOU"
n = 3
print("\nOriginal string and number:", word, ",", n)

# Call the 'test' function with the vowel-only string and 'n' to extract the first 'n' vowels.
print("Extract the first n number of vowels from the said string:")
print(test(word, n)) 

Sample Output:

Original list of numbers:
[0, 3, 4, 7, 9]
Check if each number is prime in the said list of numbers:
False

Original list of numbers:
[3, 5, 7, 13]
Check if each number is prime in the said list of numbers:
True

Original list of numbers:
[1, 5, 3]
Check if each number is prime in the said list of numbers:
False

Flowchart:

Python Code Editor:

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