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{
"data": {
"question": {
"questionId": "3068",
"questionFrontendId": "2885",
"boundTopicId": null,
"title": "Rename Columns",
"titleSlug": "rename-columns",
"content": "<pre>\nDataFrame <code>students</code>\n+-------------+--------+\n| Column Name | Type |\n+-------------+--------+\n| id | int |\n| first | object |\n| last | object |\n| age | int |\n+-------------+--------+\n</pre>\n\n<p>Write a solution to rename the columns as follows:</p>\n\n<ul>\n\t<li><code>id</code> to <code>student_id</code></li>\n\t<li><code>first</code> to <code>first_name</code></li>\n\t<li><code>last</code> to <code>last_name</code></li>\n\t<li><code>age</code> to <code>age_in_years</code></li>\n</ul>\n\n<p>The result format is in the following example.</p>\n\n<p>&nbsp;</p>\n<pre>\n<strong class=\"example\">Example 1:</strong>\n<strong>Input:\n</strong>+----+---------+----------+-----+\n| id | first | last | age |\n+----+---------+----------+-----+\n| 1 | Mason | King | 6 |\n| 2 | Ava | Wright | 7 |\n| 3 | Taylor | Hall | 16 |\n| 4 | Georgia | Thompson | 18 |\n| 5 | Thomas | Moore | 10 |\n+----+---------+----------+-----+\n<strong>Output:</strong>\n+------------+------------+-----------+--------------+\n| student_id | first_name | last_name | age_in_years |\n+------------+------------+-----------+--------------+\n| 1 | Mason | King | 6 |\n| 2 | Ava | Wright | 7 |\n| 3 | Taylor | Hall | 16 |\n| 4 | Georgia | Thompson | 18 |\n| 5 | Thomas | Moore | 10 |\n+------------+------------+-----------+--------------+\n<strong>Explanation:</strong> \nThe column names are changed accordingly.</pre>\n",
"translatedTitle": null,
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"isPaidOnly": false,
"difficulty": "Easy",
"likes": 6,
"dislikes": 1,
"isLiked": null,
"similarQuestions": "[]",
"exampleTestcases": "{\"headers\":{\"students\":[\"id\",\"first\",\"last\",\"age\"]},\"rows\":{\"employees\":[],\"students\":[[1,\"Mason\",\"King\",6],[2,\"Ava\",\"Wright\",7],[3,\"Taylor\",\"Hall\",16],[4,\"Georgia\",\"Thompson\",18],[5,\"Thomas\",\"Moore\",10]]}}",
"categoryTitle": "Algorithms",
"contributors": [],
"topicTags": [],
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"codeSnippets": [
{
"lang": "Pandas",
"langSlug": "pythondata",
"code": "import pandas as pd\n\ndef renameColumns(students: pd.DataFrame) -> pd.DataFrame:\n ",
"__typename": "CodeSnippetNode"
}
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"stats": "{\"totalAccepted\": \"250\", \"totalSubmission\": \"285\", \"totalAcceptedRaw\": 250, \"totalSubmissionRaw\": 285, \"acRate\": \"87.7%\"}",
"hints": [
"Consider using a build-in function in pandas library with a dictionary to rename the columns as specified."
],
"solution": {
"id": "2104",
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"hasVideoSolution": false,
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"status": null,
"sampleTestCase": "{\"headers\":{\"students\":[\"id\",\"first\",\"last\",\"age\"]},\"rows\":{\"employees\":[],\"students\":[[1,\"Mason\",\"King\",6],[2,\"Ava\",\"Wright\",7],[3,\"Taylor\",\"Hall\",16],[4,\"Georgia\",\"Thompson\",18],[5,\"Thomas\",\"Moore\",10]]}}",
"metaData": "{\n \"pythondata\": [\n \"students = pd.DataFrame([], columns=['id', 'first', 'last', 'age']).astype({'id':'Int64', 'first':'object', 'last':'object', 'age':'Int64'})\\n\"\n ],\n \"database\": true,\n \"name\": \"renameColumns\",\n \"languages\": [\n \"pythondata\"\n ]\n}",
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"envInfo": "{\"pythondata\": [\"Pandas\", \"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0</p>\"]}",
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