Python: Generate and print a list of first and last 5 elements where the values are square of numbers between two numbers

Python List: Exercise - 16 with Solution

Write a Python program to generate and print a list of the first and last 5 elements where the values are square numbers between 1 and 30 (both included).

Pictorial Presentation:

Sample Solution:

Python Code:

def printValues():
	l = list()
	for i in range(1,21):
		l.append(i**2)
	print(l[:5])
	print(l[-5:])

printValues()

Sample Output:

[1, 4, 9, 16, 25]
[256, 289, 324, 361, 400]

Explanation:

In the above example -

def printValues():  -> Defines a function named printValues.

l = list()  -> Initializes an empty list named l.

for i in range(1,21):
      l.append(i**2)

Iterates through numbers 1 to 20 using a for loop and calculates their square, then appends the result to the l list.

print(l[:5])  -> Prints the first five elements of the l list using slice notation.

print(l[-5:])  -> Prints the last five elements of the l list using slice notation.

printValues()  -> Finally calls the printValues() function. When executed, it will print the first five elements ([1, 4, 9, 16, 25]) and the last five elements ([256, 289, 324, 361, 400]) of the list of squares of numbers from 1 to 20.

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