map

# Define a function to square a number
def square(x):
    return x * x

# Define a list of numbers
numbers = [1, 2, 3, 4, 5]

# Apply the square function to each item in the list using map
squared_numbers = map(square, numbers)

# Convert the result to a list and print it
squared_numbers_list = list(squared_numbers)
print(squared_numbers_list)

# Define a list of numbers
numbers = [1, 2, 3, 4, 5]

# Use map with a lambda function to square each number
squared_numbers = map(lambda x: x * x, numbers)

# Convert the result to a list and print it
squared_numbers_list = list(squared_numbers)
print(squared_numbers_list)

# Define a list of strings representing numbers
str_numbers = ['1', '2', '3', '4', '5']

# Use map to convert each string to an integer
int_numbers = map(int, str_numbers)

# Convert the result to a list and print it
int_numbers_list = list(int_numbers)
print(int_numbers_list)

# Define two lists of numbers
list1 = [1, 2, 3]
list2 = [4, 5, 6]

# Define a function to add two numbers
def add(x, y):
    return x + y

# Use map to add elements from both lists
added_numbers = map(add, list1, list2)

# Convert the result to a list and print it
added_numbers_list = list(added_numbers)
print(added_numbers_list)

# Define a list of dictionaries
students = [
    {'name': 'Alice', 'score': 85},
    {'name': 'Bob', 'score': 90},
    {'name': 'Charlie', 'score': 78}
]

# Define a function to extract student names
def get_name(student):
    return student['name']

# Use map to extract names from the list of dictionaries
names = map(get_name, students)

# Convert the result to a list and print it
names_list = list(names)
print(names_list)

from functools import reduce

# Define a list of numbers
numbers = [1, 2, 3, 4, 5]

# Use map to square each number
squared_numbers = map(lambda x: x * x, numbers)

# Use filter to select only even squared numbers
even_squared_numbers = filter(lambda x: x % 2 == 0, squared_numbers)

# Use reduce to sum the even squared numbers
sum_even_squared_numbers = reduce(lambda x, y: x + y, even_squared_numbers)

print(sum_even_squared_numbers)