Python | Check if two lists have any element in common

Sometimes we encounter the problem of checking if one list contains any element of another list. This kind of problems is quite popular in competitive programming. Let’s discuss various ways to achieve this particular task.

Method #1: Using `any()`

 `# Python code to check if two lists ` `# have any element in common ` ` `  `# Initialization of list ` `list1 ``=` `[``1``, ``2``, ``3``, ``4``, ``55``] ` `list2 ``=` `[``2``, ``3``, ``90``, ``22``] ` ` `  `# using any function ` `out ``=` `any``(check ``in` `list1 ``for` `check ``in` `list2) ` ` `  `# Checking condition ` `if` `out: ` `    ``print``(``"True"``)  ` `else` `: ` `    ``print``(``"False"``) `

Output:

```True
```

Method #2: Using in operator.

 `# Python code to check if two lists ` `# have any element in common ` ` `  `# Initialization of list ` `list1 ``=` `[``1``, ``3``, ``4``, ``55``] ` `list2 ``=` `[``90``, ``22``] ` ` `  `flag ``=` `0` ` `  `# Using in to check element of ` `# second list into first list ` `for` `elem ``in` `list2: ` `    ``if` `elem ``in` `list1: ` `        ``flag ``=` `1` ` `  `# checking condition ` `if` `flag ``=``=` `1``: ` `    ``print``(``"True"``)  ` `else` `: ` `    ``print``(``"False"``) `

Output:

```False
```

My Personal Notes arrow_drop_up

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :
Practice Tags :

Be the First to upvote.

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.