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Leetcode with dani
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x = 10
y = x + 5
x = "Hello" print(y)
Anonymous Quiz
3%
A. 10
44%
B. 15
3%
C. "Hello"
51%
D. An error will occur
👍3
total = 0
for i in range(1, 6):
total += i print(total) )
Anonymous Quiz
5%
A. 10
48%
B. 15
15%
C. It will throw an error
32%
D. It will print each number from 1 to 6
💘3
Forwarded from Leetcode with dani
In Python, a variable is a name that refers to a value. Variables are used to store data that can be used later in the program. In Python, variables are created when they are first assigned a value. The basic syntax for creating a variable in Python is as follows:

variable_name = value


In this syntax, variable_name is the name of the variable, and value is the value that the variable is assigned. Here's an example of creating a variable in Python:

x = 5


In this example, the variable x is created and assigned the value 5. Once a variable is created, it can be used in expressions and statements throughout the program.

Variables in Python can hold many different types of values, including numbers, strings, lists, and more. Here are some examples of creating variables with different types of values:

# create a variable with a number value
x = 5

# create a variable with a string value
name = "Alice"

# create a variable with a list value
fruits = ["apple", "banana", "cherry"]


In these examples, the variables x, name, and fruits are created with different types of values. The variable x is assigned the number 5, the variable name is assigned the string "Alice", and the variable fruits is assigned a list of strings.

Variables in Python can also be reassigned to new values. Here's an example of reassigning a variable in Python:

x = 5
x = x + 1
print(x)


In this example, the variable x is first assigned the value 5. The second line of code reassigns x to the value of x + 1, which is 6. The print() function is then called to print the value of x, which is 6.
Forwarded from Leetcode with dani
The answer for the above question :
Here's detailed explanation

1. Prompting the User:
   You can provide a message or prompt inside the parentheses of the input() function. This message will be displayed to the user, asking them for input. For example:

   name = input("Enter your name: ")

   In this case, "Enter your name: " is the prompt that will be displayed to the user.

2. Storing User Input:
   The value entered by the user is returned by the input() function and can be stored in a variable for further use. In the example above, the user's input will be stored in a variable called name.

3. Handling User Input:
   By default, input() treats all user input as strings. If you want to perform numerical operations on user input, you need to convert it into an appropriate data type (e.g., integer or float). You can use type casting functions like int() or float() for this purpose.

   age = int(input("Enter your age: "))

   Here, we are converting the user's input into an integer using int(). If the user enters something that cannot be converted into an integer (e.g., "abc"), it will raise a ValueError.

4. Using User Input:
   Once you have stored the user's input in a variable, you can use it in your program as needed. For example:
   print("Hello", name)
   print("Next year, you will be", age + 1)

   Here, we are printing a greeting message using the user's name and calculating their age for the next year by adding 1 to the inputted age.
     The answer is:

name = input("Enter your name: ")
age = int(input("Enter your age: "))
print("Hello", name)
   print("Next year, you will be", age + 1)
after reading the above lecture try to answewr the following questions
Question 1 (Multiple Choice):

What happens if the user enters "twenty-five" instead of a number when prompted for their age using age = int(input("Enter your age: "))? .
Anonymous Quiz
67%
A. The program crashes with an error.
21%
B. The program stores "twenty-five" as the user's age.
13%
C. The program converts "twenty-five" to 25 automatically
🏆1
number_string = "1234"
number = int(number_string)
print(number + 5)
Anonymous Quiz
27%
12345
57%
1239
16%
Error
👍2
Hey everyone,

Big news! This channel is evolving to focus on cracking LeetCode problems and sharpening your coding skills.

While I appreciate your interest in Python, I'm excited to embark on this new journey with you all, tackling LeetCode challenges together.

Why LeetCode?

Boost your coding interview skills: LeetCode problems are widely used by top tech companies, and mastering them will put you ahead of the curve.
Test and improve your problem-solving abilities: LeetCode offers a variety of problems ranging from easy to challenging, ensuring there's something for everyone.
Learn from each other: We can discuss solutions, share different approaches, and help each other overcome obstacles.
Get ready to:

Dive into LeetCode problems (all levels): We'll tackle a variety of challenges, from basic algorithms to more complex data structures.
Collaborate and discuss solutions: Share your thought processes, learn from different approaches, and help each other conquer the problems.
Become a LeetCode master: Together, we'll push ourselves and improve our coding skills to new heights.
Are you ready to join the LeetCode challenge?

Let's make this channel a hub for collaboration and LeetCode problem-solving!

P.S. Feel free to suggest specific LeetCode problems you'd like to tackle in the comments below.

Let's code together! let me know your ideas in the comment section and there is another group i created only for python i will post it below.
🔥4
#leet_code_Q1 #Array Given a non-empty array of integers nums, every element appears twice except for one. Find that single one.

You must implement a solution with a linear runtime complexity and use only constant extra space.



Example 1:

Input: nums = [2,2,1]
Output: 1
Example 2:

Input: nums = [4,1,2,1,2]
Output: 4
Example 3:

Input: nums = [1]
Output: 1 Each element in the array appears twice except for one element which appears only once.
👍4
Channel name was changed to «Leet code with dani»
Leetcode with dani pinned «#leet_code_Q1 #Array Given a non-empty array of integers nums, every element appears twice except for one. Find that single one. You must implement a solution with a linear runtime complexity and use only constant extra space. Example 1: Input: nums…»