PyTip for the day:Use the "enumerate" function to iterate over a sequence and get the index of each element.

Sometimes when you're iterating over a list or other sequence in Python, you need to keep track of the index of the current element. One way to do this is to use a counter variable and increment it on each iteration, but this can be tedious and error-prone.

A better way to get the index of each element is to use the built-in "enumerate" function. The "enumerate" function takes an iterable (such as a list or tuple) as its argument and returns a sequence of (index, value) tuples, where "index" is the index of the current element and "value" is the value of the current element. Here's an example:

```
Iterate over a list of strings and print each string with its index
strings = ['apple', 'banana', 'cherry', 'date']
for i, s in enumerate(strings):
print(f"{i}: {s}")

```
In this example, we use the "enumerate" function to iterate over a list of strings. On each iteration, the "enumerate" function returns a tuple containing the index of the current string and the string itself. We use tuple unpacking to assign these values to the variables "i" and "s", and then print out the index and string on a separate line.

The output of this code would be:

```
apple
1: banana
2: cherry
3: date

```
Using the "enumerate" function can make your code more concise and easier to read, especially when you need to keep track of the index of each element in a sequence.

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PyTip for the day: When working with lists in Python, consider using list comprehensions instead of for loops to perform operations on the list elements. List comprehensions are more concise, readable, and often faster than using traditional for loops.

For example, instead of using a for loop to create a new list that contains the squared values of the elements in an existing list, you can use a list comprehension like this:

numbers = 1, 2, 3, 4, 5
squarednumbers = [num * 2 for num in numbers]

This will create a new list squared*numbers containing the squared values of the elements in numbers.

Practice Code: 053

Task:
You have to create a program where a list of numbers is given and a number of rotation is given. Now you to bring last number of list in front and swift each number to the right. Do this till the given number of rotation.

Sample :-
input - [1,2,3,4] , 2
output - [4,1,2,3] -> [3,4,1,2]

Good luck!

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Practice Code: 052
You have to create a program where you have to create a dictionary with key (1 to n) and value be square of the key.

Sample Run:-
input - 5
output - {1:1 , 2:4 , 3:9 , 4:16 , 5:25}

Good luck!

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Practice Code: 051

Write a program to return the sum of a series of sequential numbers. The sequence can be

```
a. 1,2,3,4,5.......n
b. 1,3,5,7,9,11,.....n
c. 2,4,6,8,10,12.....n
d. 35,42,49,56,63....n

```
Note: Do not use a loop to add the numbers, if that is what your idea is, not use a sum() or similar function to add them.Write an algorithm that optimally finds the sum total.

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#PracticeCode: 0050
? FORWARD IF YOU LIKE IT ?

Task:
You have to create a program where you have to create a list of first 5 and last 5 numbers in range of number 1 to 30.

GOOD LUCK!

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#PracticeCode: 0050
? FORWARD IF YOU LIKE IT ?

Task:
You have to create a program where a list two digit tuples are given and you have to arrange them in ascending order by watching 2nd elements of the tuples.

Given - [(2,5),(1,2),(4,4),(2,3)]

Output - [(1,2),(2,3),(4,4),(2,5)]

GOOD LUCK!

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#PracticeCode: 0049
? FORWARD IF YOU LIKE IT ?

Task:
You have to create a program where a list of words is given and you have to print only those words which are longer than the given number n. N has to taken as input by the user.

Given_list = ["python" , "java" , "c" , "c++" , "kotlin"]

Input - 3

Output - ["python" , "java" , "kotlin"]

GOOD LUCK!

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#PracticeCode: 0048
? FORWARD IF YOU LIKE IT ?

Task:
You have to create a program to create a dictionary. Take input of an integer (from 1 to n) and print the dictionary in (a , a**2) format.

Sample :-

Input - 4

Output - { 1 : 1 , 2 : 4 , 3 : 9 , 4 : 16}

GOOD LUCK!

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