Leetcode with dani pinned Β«please make sure to read and understand the lecture I provided on lists before answer the following questionsΒ»
1. What is the output of the following code?
numbers = [1, 2, 3, 4, 5] print(numbers[2])
numbers = [1, 2, 3, 4, 5] print(numbers[2])
Anonymous Quiz
5%
1
39%
2
54%
3
2%
4
1%
5
π6π1
2. What is the output of the following code?
numbers = [1, 2, 3, 4, 5] numbers[1] = 10 print(numbers)
numbers = [1, 2, 3, 4, 5] numbers[1] = 10 print(numbers)
Anonymous Quiz
7%
[1, 2, 3, 4, 5]
24%
[10, 2, 3, 4, 5]
18%
error
50%
[1, 10, 3, 4, 5]
π5π₯1
Leetcode with dani
1. What is the output of the following code?
numbers = [1, 2, 3, 4, 5] print(numbers[2])
numbers = [1, 2, 3, 4, 5] print(numbers[2])
in Python, indexing starts from zero.the first element in a list has an index of 0, the second element has an index of 1, and so on
β€βπ₯2
try to understand the above idea on list before answer this question ,it's alittel bit confusing 3. What is the output of the following code?
numbers = [1, 2, 3, 4, 5] sliced_numbers = numbers[1:4] print(sliced_numbers)
numbers = [1, 2, 3, 4, 5] sliced_numbers = numbers[1:4] print(sliced_numbers)
Anonymous Quiz
40%
[ 2, 3, 4]
25%
[ 2, 3, 4, 5]
30%
[ 2, 3, 4 ]
5%
[1, 2, 3, 4, 5]
π6β1
4.What is the output of the following code?
fruits = ["apple", "banana", "orange"] fruits.append("mango") print(len(fruits))
fruits = ["apple", "banana", "orange"] fruits.append("mango") print(len(fruits))
Anonymous Quiz
4%
["apple", "banana", "orange"]
24%
["apple", "banana", "orange","mango"]
63%
4
6%
3
3%
["mango"]
π4
colors = ['red', 'green', 'blue'], what is the output of colors[-1]?
Anonymous Quiz
4%
'red'
8%
'green'
64%
'blue'
25%
error
π€6β€2π2π₯1
The output of sum([10, 20, 30, 40, 50]) is
Anonymous Quiz
21%
none
57%
150
22%
([10, 20, 30, 40, 50])
π1
Leetcode with dani
what is list in python? Lists are one of the most commonly used data structures in Python. They are used to store a collection of items, such as numbers, strings, or even other lists. Lists are mutable, which means you can modify them by adding, removingβ¦
what should replace x to show the length of the list and what is the final out put? fruits = ['apple', 'banana', 'orange'] fruits.remove('apple')
x
print(length)
x
print(length)
Anonymous Quiz
9%
len(fruits) and 3
46%
length = len(fruits) and 2
34%
len(fruits) and 2
11%
length = len('fruits') and 2
π6β1β€βπ₯1
#code_challenge write a code that Check whether a list is empty or not
π1
What will be the output of the following code?
my_list = [1, 0, -1, 4, '1']
if my_list[0] == my_list[-1]: print("The first and last elements are the same.") else: print("The first and last elements are different.") Output:
my_list = [1, 0, -1, 4, '1']
if my_list[0] == my_list[-1]: print("The first and last elements are the same.") else: print("The first and last elements are different.") Output:
Anonymous Quiz
22%
The first and last elements are the same
10%
error
69%
The first and last elements are different
β€8π2π2
here is the code that check whether the list is empty or not. my_list = []
if len(my_list) == 0:
print("The list is empty.") else: print("The list is not empty.")
if len(my_list) == 0:
print("The list is empty.") else: print("The list is not empty.")
Anonymous Quiz
79%
The list is empty.
13%
The list is not empty.
8%
{}
π7
TUPLES IN PYTHON Tuples are an immutable data structure in Python, similar to lists. They are used to store a collection of related values that should not be changed. Tuples are often used to represent a group of items that belong together, such as coordinates, RGB color values, or database records.
Creating a Tuple:
To create a tuple, you can enclose a comma-separated sequence of items within parentheses (). For example:
You can access individual elements in a tuple using their index, just like with lists. The index starts from 0 for the first element, 1 for the second element, and so on.
You can create a tuple by simply separating values with commas, without using parentheses. This is called tuple packing.
Tuples have fewer built-in methods compared to lists, but there are a few useful ones:
Creating a Tuple:
To create a tuple, you can enclose a comma-separated sequence of items within parentheses (). For example:
my_tuple = (1, 2, 3, "apple", "banana")
Alternatively, you can create a tuple without using parentheses by separating the values with commas:my_tuple = 1, 2, 3, "apple", "banana"
Accessing Elements:You can access individual elements in a tuple using their index, just like with lists. The index starts from 0 for the first element, 1 for the second element, and so on.
print(my_tuple[0]) # Output: 1
print(my_tuple[3]) # Output: "apple"
Tuples are immutable, which means you cannot modify their elements or assign new values to them. If you try to modify a tuple, you will get a TypeError.my_tuple[0] = 10 # This will raise a TypeError
Tuple Packing and Unpacking:You can create a tuple by simply separating values with commas, without using parentheses. This is called tuple packing.
my_tuple = 1, 2, 3
You can also assign the values of a tuple to multiple variables in a single line. This is called tuple unpacking.a, b, c = my_tuple
print(a) # Output: 1
print(b) # Output: 2
print(c) # Output: 3
Tuple Methods:Tuples have fewer built-in methods compared to lists, but there are a few useful ones:
my_tuple = (1, 2, 3, 4, 5)
# Get the index of a specific element
index = my_tuple.index(3)
print(index) # Output: 2
# Count the number of occurrences of an element
count = my_tuple.count(4)
print(count) # Output: 1
Tuples are commonly used when you want to store a collection of values that should not be modified.π3π3π3
π4π1
Leetcode with dani pinned Β«TUPLES IN PYTHON Tuples are an immutable data structure in Python, similar to lists. They are used to store a collection of relatedβ¦Β»
1. Code:
my_tuple = (1, 2, 3, "apple", "banana")
print(my_tuple[-1]) Question: What will be the output of the above code?
my_tuple = (1, 2, 3, "apple", "banana")
print(my_tuple[-1]) Question: What will be the output of the above code?
Anonymous Quiz
4%
1
6%
2
4%
3
4%
apple
83%
banana
π3
3. Code:
my_tuple = (1, 2, 3, "apple", "banana")
print(my_tuple.index("banana")) Question: What will be the output of the above code?
my_tuple = (1, 2, 3, "apple", "banana")
print(my_tuple.index("banana")) Question: What will be the output of the above code?
Anonymous Quiz
9%
3
74%
4
17%
5
π3
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@zprogramming_bot α«α³ααα
4.Code:
my_tuple = (1, 2, 3, "apple", "banana")
print(len(my_tuple)) Question: What will be the output of the above code?
my_tuple = (1, 2, 3, "apple", "banana")
print(len(my_tuple)) Question: What will be the output of the above code?
Anonymous Quiz
92%
5
4%
6
4%
3
π3