Description

#################################

#1 Request a string consisting of numeric characters using the input function from the stdin. Convert this str value
into an int value without using int(…) built-in function, and print the “value * 2” calculation to the console. There

An example request:
Please enter a text consisting of numeric characters: 123
246

Explanation

You can convert the characters of the textual number you will read from the keyboard into the int type using the ord
function. For example, if the character is ch, ord(ch) – ord(‘0’) gives the numerical equivalent of that character.

#####################################################################################
#################################

#2 Write the code that does the reverse of the operation done in the above question without ever calling the str function.
That is, you will read an int value using the int(input(…)) call. Then you will decompose this number into digits and convert it back into text.

Explanation

You can convert the digits of the number you will read from the keyboard into the str type using the chr function.
For instance, if d is a one-digit number, it can be converted to a character using the operation chr(ord(‘0’) + d).

#####################################################################################
#################################

#3 Read a value n from the keyboard and create a square unit matrix of size n x n in the form of a list. Print this list using nested loops and print. For example:

Enter a number for n: 5
[[1, 0, 0, 0, 0], [0, 1, 0, 0, 0], [0, 0, 1, 0, 0], [0, 0, 0, 1, 0], [0, 0, 0, 0, 1]]

1 0 0 0 0
0 1 0 0 0
0 0 1 0 0
0 0 0 1 0
0 0 0 0 1

#####################################################################################
#################################

#4 Read a text from the keyboard. Place the words in the text into a list and print the list.

Enter a text: Today the weather is very nice. Ali (our Ali) – Veli – and Selami went to the park.

[‘Today’, ‘the’, ‘weather’, ‘is’, ‘very’, ‘nice’, ‘Ali’, ‘our’, ‘Ali’, ‘Veli’, ‘and’, ‘Selami’, ‘went’, ‘to’, ‘the’, ‘park’] Explanation:

Please note that punctuation marks and special characters like parentheses are not part of words.

#####################################################################################
#################################

#5 Please enter a number n from the keyboard. Print all numbers between 0 and n (inclusive) that have all their digits
as even numbers. For example, if the value 5000 is entered from the keyboard, all printed numbers must have all their digits as even numbers (0, 2, 4, 6, 8, 20, 22, 24, …, 4882, … etc.)

#####################################################################################
#################################

#6 Request a text from the keyboard. Print out how many upper case letters and how many lower case letters there are in the text. (Non-alphabetic characters will not be taken into account.

#####################################################################################
#################################

#7 Enter a text from the keyboard. Place the number of characters in the text in a dictionary. The keys of the dictionary
should be characters and the values should be their counts. For example, if the text “ankara” is entered, the created dictionary object should contain the following elements:

{‘a’: 3, ‘n’: 1, ‘k’: 1, ‘r’: 1} #####################################################################################
#################################

#8 Create a list of two-digit int numbers. Then rearrange the elements of this list into a form where their digits are swapped. For example:

a = [12, 56, 89, 32, 19, 99, 43]

This list should be converted to the following:

[21, 65, 98, 23, 91, 99, 34]

#####################################################################################
#################################

#9 Please read in the variables ‘height’ and ‘width’ from the keyboard and create the following pattern
(our example is height = 9, width = 7):

|* |
| * |
| * |
| * |
| * |
| * |
| *|
| * |
| * |

Here, ‘height’ is the total number of rows, and ‘width’ is the number of characters between the ‘|’ characters.

#####################################################################################
#################################

#10 Read a number n from the keyboard and write a program to create the following pattern (our example is n = 6):

*
***
*****
*******
*********
***********
*********
*******
*****
***
*

#####################################################################################
#################################