LAB5

01.py

for num in range(1, 11):
    if num % 2 != 0:
        continue
    print(num)

02.py

N = int(input("Enter a positive integer: "))

sum_multiples = 0
for num in range(1, N):
    if num % 3 == 0 or num % 5 == 0:
        sum_multiples += num

print("\nSum of multiples of 3 and 5 below", N, "is:", sum_multiples)

03.py

num = 1

while num <= 15:
    if num % 2 == 1 and num % 3 == 0:
        break
    print(num)
    num += 1

04.py

def count_even_numbers(numbers):
    count = 0
    for num in numbers:
        if num % 2 == 0:
            count += 1
    return count

# Test the function
print(count_even_numbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]))  # Output should be 5
print(count_even_numbers([12, 15, 18, 21, 24, 27, 30]))  # Output should be 4

05.py

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

# Test the function
print(is_prime(7))   # Output should be True
print(is_prime(12))  # Output should be False

06.py

N = int(input("Enter a positive integer: \n"))

for i in range(1, N + 1):
    print("*" * i)

07.py

N = int(input("Enter the number of elements: "))

sum = 0
for _ in range(N):
    num = float(input("\nEnter a number: "))
    sum += num

average = sum / N
print("\nAverage:", average)

08.py

import random

random.seed(15)
target_number = random.randint(1, 20)

while True:
    guess = int(input("Guess the number (between 1 and 20):\n"))
    
    if guess == target_number:
        print("Congratulations! You guessed the correct number.")
        break
    elif guess < target_number:
        print("Too low. Try again.")
    else:
        print("Too high. Try again.")

09.py

correct_password = "cprefamily"

while True:
    password = input("Enter the password:\n")
    
    if password != correct_password:
        print("Incorrect password. Try again.")
        continue
    else:
        print("Access granted!")
        break

10.py

s = input("Input a string: ")
d=l=0
for c in s:
    if c.isdigit():
        d=d+1
    elif c.isalpha():
        l=l+1
    else:
        pass
print("\nLetters", l)
print("Digits", d)

11.py

vowel_count = 0
user_input = input("Enter a string:\n")

for char in user_input:
    if char.lower() not in 'aeiou':
        continue
    vowel_count += 1

print("Number of vowels:", vowel_count)

12-13-14.txt

12)
b.The for loop is used for definite iteration, while the while loop is used for indefinite iteration.
13)
b.15
14)
c.Count: 0 Count: 2 Count: 4