Summary
- Introduction
- Mathematical Formulas
- Conditionals
- Repeat Loops
- Arrays
- Strings
- Matrices
- Recursive Functions
- Extra Exercises
- Complete List of Exercises
- Additional Content
Introduction
If you have acquired this Article, you want to start programming and be
logically challenged as soon as possible, without wanting to read a sermon
on the mount. But it is important to highlight a few things before we begin.
Even though many exercises may be considered easy, if you are new to
this programming journey, it is important for you to first try to solve the
problem on your own before looking at the solution. There is more than one
possible solution to the same problem, and you need to think and develop
your own solution. Then, you can compare it with the proposed one in the
book, identify the strengths of each, and try to learn a little more.
If the exercise is too difficult and you can't solve it, move on to the next
one and try again the next day. Don't immediately jump to the answer, even
if you can't solve it, and definitely don't look at the answer without even
attempting to solve it.
Learning programming logic is not about getting the answer; it's about
the journey you take to arrive at the answer.
With that being said, the remaining chapters of this book are divided
according to the programming topics covered in the proposed exercises
● Mathematical Formulas (15 exercises)
● Conditionals (20 exercises)
● Loop Structures (25 exercises)
● Arrays (10 exercises)
● Strings (10 exercises)
● Matrices (10 exercises)
● Recursive Functions (10 exercises)
● + Extra Exercises at the End
You can check out the complete list of exercises at the end of the book.
From now on, it's all up to you!
Mathematical Formulas
Before starting with the exercises, and their respective commented
solutions, let's review some important commands and functions to solve the
exercises in this chapter.
The print function
In Python, the print() function is used to display output on the console or
terminal. It allows you to output text, variables, or any other data you want
to visualize while running your program. The print() function has the
following syntax:
print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False)
Let's break down the different components of the print() function:
*objects: This is a positional argument that represents one or more
objects or values to be displayed. You can pass multiple objects separated
by commas, and they will be concatenated and printed. The print() function
automatically converts the objects into strings before printing.
sep=' ': This is an optional keyword argument that specifies the
separator between the objects being printed. By default, it is set to a space ('
'). You can change it to any other string value as per your requirement.
end='\n': This is an optional keyword argument that determines what
character(s) should be printed at the end. By default, it is set to a newline
character ('\n'), which means each call to print() will end with a newline.
You can change it to an empty string ('') or any other string if you want to
alter the ending character(s).
file=sys.stdout: This is an optional keyword argument that specifies the
file-like object where the output will be written. By default, it is set to
sys.stdout, which represents the standard output (console/terminal). You can
pass other file objects if you want to redirect the output to a file or a
different destination.
flush=False: This is an optional keyword argument that determines
whether the output should be flushed immediately. By default, it is set to
False, which means the output is not immediately flushed. Setting it to
True will ensure the output is written immediately.
Here are a few examples of using the print() function in Python:
The input function
In Python, the input() function is used to read input from the user via the
console or terminal. It allows your program to prompt the user for
information, and the user can enter a value, which is then returned as a
string. The input() function has the following syntax:
input(prompt)
Let's break down the components of the input() function:
prompt: This is an optional parameter that represents the string to be
displayed as a prompt to the user. It is displayed on the console before
waiting for the user's input. If you omit the prompt parameter, the function
will not display anything as a prompt.
The input() function waits for the user to enter input and press the Enter
key. Once the user provides input, the function returns the entered value as
a string. You can assign the returned value to a variable for further
processing.
Here's an example of using the input() function in Python:
The input function
In Python, the input() function is used to read input from the user via the
console or terminal. It allows your program to prompt the user for
information, and the user can enter a value, which is then returned as a
string. The input() function has the following syntax:
input(prompt)
Let's break down the components of the input() function:
prompt: This is an optional parameter that represents the string to be
displayed as a prompt to the user. It is displayed on the console before
waiting for the user's input. If you omit the prompt parameter, the function
will not display anything as a prompt.
The input() function waits for the user to enter input and press the Enter
key. Once the user provides input, the function returns the entered value as
a string. You can assign the returned value to a variable for further
processing.
Here's an example of using the input() function in Python:
In this example, the first input() function prompts the user to enter their
name. The entered name is then stored in the name variable and displayed
as part of the greeting message.
The second input() function prompts the user to enter their age. The
entered value is stored as a string in the age variable. To perform numerical
operations, we convert the age string to an integer using the int() function.
Then we add 1 to the age and convert it back to a string using str() before
displaying it in the message.
Note: The input() function always returns a string, even if the user
enters a number. If you need to use the input as a number, you'll need to
convert it to the appropriate data type using functions like int() or float().
Math operations
Python provides several built-in operators and functions for performing
mathematical operations. Here are some commonly used math operations in
Python:
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