leetcode-problemset/leetcode/originData/customer-placing-the-largest-number-of-orders.json

{
    "data": {
        "question": {
            "questionId": "586",
            "questionFrontendId": "586",
            "boundTopicId": null,
            "title": "Customer Placing the Largest Number of Orders",
            "titleSlug": "customer-placing-the-largest-number-of-orders",
            "content": "<p>Table: <code>Orders</code></p>\n\n<pre>\n+-----------------+----------+\n| Column Name     | Type     |\n+-----------------+----------+\n| order_number    | int      |\n| customer_number | int      |\n+-----------------+----------+\norder_number is the primary key (column with unique values) for this table.\nThis table contains information about the order ID and the customer ID.\n</pre>\n\n<p>&nbsp;</p>\n\n<p>Write a solution to find the <code>customer_number</code> for the customer who has placed <strong>the largest number of orders</strong>.</p>\n\n<p>The test cases are generated so that <strong>exactly one customer</strong> will have placed more orders than any other customer.</p>\n\n<p>The 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> \nOrders table:\n+--------------+-----------------+\n| order_number | customer_number |\n+--------------+-----------------+\n| 1            | 1               |\n| 2            | 2               |\n| 3            | 3               |\n| 4            | 3               |\n+--------------+-----------------+\n<strong>Output:</strong> \n+-----------------+\n| customer_number |\n+-----------------+\n| 3               |\n+-----------------+\n<strong>Explanation:</strong> \nThe customer with number 3 has two orders, which is greater than either customer 1 or 2 because each of them only has one order. \nSo the result is customer_number 3.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Follow up:</strong> What if more than one customer has the largest number of orders, can you find all the <code>customer_number</code> in this case?</p>\n",
            "translatedTitle": null,
            "translatedContent": null,
            "isPaidOnly": false,
            "difficulty": "Easy",
            "likes": 925,
            "dislikes": 68,
            "isLiked": null,
            "similarQuestions": "[]",
            "exampleTestcases": "{\"headers\":{\"orders\":[\"order_number\",\"customer_number\"]},\"rows\":{\"orders\":[[1,1],[2,2],[3,3],[4,3]]}}",
            "categoryTitle": "Database",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": [
                {
                    "lang": "MySQL",
                    "langSlug": "mysql",
                    "code": "# Write your MySQL query statement below\n",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "MS SQL Server",
                    "langSlug": "mssql",
                    "code": "/* Write your T-SQL query statement below */\n",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Oracle",
                    "langSlug": "oraclesql",
                    "code": "/* Write your PL/SQL query statement below */\n",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Pandas",
                    "langSlug": "pythondata",
                    "code": "import pandas as pd\n\ndef largest_orders(orders: pd.DataFrame) -> pd.DataFrame:\n    ",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "PostgreSQL",
                    "langSlug": "postgresql",
                    "code": "-- Write your PostgreSQL query statement below\n",
                    "__typename": "CodeSnippetNode"
                }
            ],
            "stats": "{\"totalAccepted\": \"222.2K\", \"totalSubmission\": \"341.2K\", \"totalAcceptedRaw\": 222243, \"totalSubmissionRaw\": 341164, \"acRate\": \"65.1%\"}",
            "hints": [
                "MySQL uses a different expression to get the first records other than MSSQL's TOP expression."
            ],
            "solution": {
                "id": "160",
                "canSeeDetail": false,
                "paidOnly": true,
                "hasVideoSolution": false,
                "paidOnlyVideo": true,
                "__typename": "ArticleNode"
            },
            "status": null,
            "sampleTestCase": "{\"headers\":{\"orders\":[\"order_number\",\"customer_number\"]},\"rows\":{\"orders\":[[1,1],[2,2],[3,3],[4,3]]}}",
            "metaData": "{\"mysql\": [\"Create table If Not Exists orders (order_number int, customer_number int)\"], \"mssql\": [\"Create table orders (order_number int, customer_number int)\"], \"oraclesql\": [\"Create table orders (order_number int, customer_number int)\"], \"database\": true, \"name\": \"largest_orders\", \"pythondata\": [\"orders = pd.DataFrame([], columns=['order_number', 'customer_number']).astype({'order_number':'Int64', 'customer_number':'Int64'})\"], \"postgresql\": [\"Create table If Not Exists orders (order_number int, customer_number int)\"], \"database_schema\": {\"orders\": {\"order_number\": \"INT\", \"customer_number\": \"INT\"}}}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists orders (order_number int, customer_number int)",
                "Truncate table orders",
                "insert into orders (order_number, customer_number) values ('1', '1')",
                "insert into orders (order_number, customer_number) values ('2', '2')",
                "insert into orders (order_number, customer_number) values ('3', '3')",
                "insert into orders (order_number, customer_number) values ('4', '3')"
            ],
            "enableRunCode": true,
            "enableTestMode": false,
            "enableDebugger": false,
            "envInfo": "{\"mysql\": [\"MySQL\", \"<p><code>MySQL 8.0</code>.</p>\"], \"mssql\": [\"MS SQL Server\", \"<p><code>mssql server 2019</code>.</p>\"], \"oraclesql\": [\"Oracle\", \"<p><code>Oracle Sql 11.2</code>.</p>\"], \"pythondata\": [\"Pandas\", \"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0</p>\"], \"postgresql\": [\"PostgreSQL\", \"<p>PostgreSQL 16</p>\"]}",
            "libraryUrl": null,
            "adminUrl": null,
            "challengeQuestion": null,
            "__typename": "QuestionNode"
        }
    }
}