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- Câu hỏi: Comparing two lists and printing the list in Python
- Thời gian hỏi: Hỏi 67 Phút Trước
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Comparing two lists and printing the list in Python
To compare two lists and print the list in Python, you can use the following code:
pythonlist1 = [1, 2, 3, 4, 5] list2 = [3, 4, 5, 6, 7] # Find common elements in both lists common_elements = list(set(list1) & set(list2)) # Print the common elements print("Common elements in both lists are:", common_elements) # Find the elements unique to list1 unique_to_list1 = list(set(list1) - set(list2)) # Print the elements unique to list1 print("Elements unique to list1 are:", unique_to_list1) # Find the elements unique to list2 unique_to_list2 = list(set(list2) - set(list1)) # Print the elements unique to list2 print("Elements unique to list2 are:", unique_to_list2)
In this code, we first create two lists list1
and list2
. We then use the set intersection operator &
to find the common elements between the two lists and store them in the common_elements
variable. We use the set()
function to convert the lists to sets because the intersection operator only works on sets.
We then use the set difference operator -
to find the elements unique to list1
and list2
respectively, and store them in unique_to_list1
and unique_to_list2
variables.
Finally, we print the common elements, elements unique to list1, and elements unique to list2.
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Comparing the values of two lists in Python
How to compare 2 lists in Python?
To compare two lists in Python, you can use the built-in ==
operator.
Here is an example:
pythonlist1 = [1, 2, 3, 4] list2 = [1, 2, 3, 4] if list1 == list2: print("The two lists are equal") else: print("The two lists are not equal")
In this example, the ==
operator compares the values of each element in both lists. If all the elements have the same values and are in the same order, the lists are considered equal.
If you just want to check if the two lists have the same elements (regardless of their order), you can sort both lists and then compare them using the ==
operator:
pythonlist1 = [1, 2, 3, 4] list2 = [4, 3, 2, 1] if sorted(list1) == sorted(list2): print("The two lists have the same elements") else: print("The two lists do not have the same elements")
In this example, the sorted()
function is used to sort both lists before comparing them. If the two lists have the same elements (even if they are in a different order), they are considered equal.
How can I compare two lists in Python and return matches?
You can compare two lists in Python and return the matches between them using a simple for loop and a conditional statement. Here’s an example:
pythonlist1 = [1, 2, 3, 4, 5] list2 = [3, 4, 5, 6, 7] matches = [] for item in list1: if item in list2: matches.append(item) print(matches)
In this example, we define two lists list1
and list2
with some overlapping elements. We then create an empty list called matches
to store the common elements between the two lists. We iterate through each element of list1
using a for loop and check if that element is present in list2
using an if statement. If it is, we append the element to the matches
list. Finally, we print the matches
list to see the common elements between the two lists.
Output:
csharp[3, 4, 5]
In this case, the output shows that the elements 3, 4, and 5 are common to both list1
and list2
.
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Bạn có thể xem thêm một số thông tin liên quan đến Comparing two lists and printing the list in Python tại đây
- How to Compare Two Lists in Python | DigitalOcean
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- [6 Ways] Compare Two Lists in Python and Return Non-Match Elements
- Python | Difference between two lists – GeeksforGeeks
- How to compare two lists in Python – Javatpoint
- python – Get difference between two lists with Unique Entries
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- How to Compare Two Lists in Python? – STechies
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