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            "questionId": "1877",
            "questionFrontendId": "1729",
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            "title": "Find Followers Count",
            "titleSlug": "find-followers-count",
            "content": "<p>Table: <code>Followers</code></p>\n\n<pre>\n+-------------+------+\n| Column Name | Type |\n+-------------+------+\n| user_id     | int  |\n| follower_id | int  |\n+-------------+------+\n(user_id, follower_id) is the primary key (combination of columns with unique values) for this table.\nThis table contains the IDs of a user and a follower in a social media app where the follower follows the user.</pre>\n\n<p>&nbsp;</p>\n\n<p>Write a solution that will, for each user, return the number of followers.</p>\n\n<p>Return the result table ordered by <code>user_id</code> in ascending order.</p>\n\n<p>The&nbsp;result format is in the following example.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \nFollowers table:\n+---------+-------------+\n| user_id | follower_id |\n+---------+-------------+\n| 0       | 1           |\n| 1       | 0           |\n| 2       | 0           |\n| 2       | 1           |\n+---------+-------------+\n<strong>Output:</strong> \n+---------+----------------+\n| user_id | followers_count|\n+---------+----------------+\n| 0       | 1              |\n| 1       | 1              |\n| 2       | 2              |\n+---------+----------------+\n<strong>Explanation:</strong> \nThe followers of 0 are {1}\nThe followers of 1 are {0}\nThe followers of 2 are {0,1}\n</pre>\n",
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            "exampleTestcases": "{\"headers\":{\"Followers\":[\"user_id\",\"follower_id\"]},\"rows\":{\"Followers\":[[\"0\",\"1\"],[\"1\",\"0\"],[\"2\",\"0\"],[\"2\",\"1\"]]}}",
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                    "lang": "Pandas",
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                    "code": "import pandas as pd\n\ndef count_followers(followers: pd.DataFrame) -> pd.DataFrame:\n    ",
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                    "langSlug": "postgresql",
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            "sampleTestCase": "{\"headers\":{\"Followers\":[\"user_id\",\"follower_id\"]},\"rows\":{\"Followers\":[[\"0\",\"1\"],[\"1\",\"0\"],[\"2\",\"0\"],[\"2\",\"1\"]]}}",
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                "Create table If Not Exists Followers(user_id int, follower_id int)",
                "Truncate table Followers",
                "insert into Followers (user_id, follower_id) values ('0', '1')",
                "insert into Followers (user_id, follower_id) values ('1', '0')",
                "insert into Followers (user_id, follower_id) values ('2', '0')",
                "insert into Followers (user_id, follower_id) values ('2', '1')"
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