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            "title": "Maximum Number of Balls in a Box",
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            "content": "<p>You are working in a ball factory where you have <code>n</code> balls numbered from <code>lowLimit</code> up to <code>highLimit</code> <strong>inclusive</strong> (i.e., <code>n == highLimit - lowLimit + 1</code>), and an infinite number of boxes numbered from <code>1</code> to <code>infinity</code>.</p>\n\n<p>Your job at this factory is to put each ball in the box with a number equal to the sum of digits of the ball&#39;s number. For example, the ball number <code>321</code> will be put in the box number <code>3 + 2 + 1 = 6</code> and the ball number <code>10</code> will be put in the box number <code>1 + 0 = 1</code>.</p>\n\n<p>Given two integers <code>lowLimit</code> and <code>highLimit</code>, return<em> the number of balls in the box with the most balls.</em></p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> lowLimit = 1, highLimit = 10\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\nBox Number:  1 2 3 4 5 6 7 8 9 10 11 ...\nBall Count:  2 1 1 1 1 1 1 1 1 0  0  ...\nBox 1 has the most number of balls with 2 balls.</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> lowLimit = 5, highLimit = 15\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\nBox Number:  1 2 3 4 5 6 7 8 9 10 11 ...\nBall Count:  1 1 1 1 2 2 1 1 1 0  0  ...\nBoxes 5 and 6 have the most number of balls with 2 balls in each.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> lowLimit = 19, highLimit = 28\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\nBox Number:  1 2 3 4 5 6 7 8 9 10 11 12 ...\nBall Count:  0 1 1 1 1 1 1 1 1 2  0  0  ...\nBox 10 has the most number of balls with 2 balls.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= lowLimit &lt;= highLimit &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
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                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    int countBalls(int lowLimit, int highLimit) {\n        \n    }\n};",
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                    "code": "class Solution {\n    public int countBalls(int lowLimit, int highLimit) {\n        \n    }\n}",
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                    "lang": "Python",
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                    "code": "class Solution(object):\n    def countBalls(self, lowLimit, highLimit):\n        \"\"\"\n        :type lowLimit: int\n        :type highLimit: int\n        :rtype: int\n        \"\"\"\n        ",
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                    "code": "class Solution:\n    def countBalls(self, lowLimit: int, highLimit: int) -> int:\n        ",
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                    "code": "\n\nint countBalls(int lowLimit, int highLimit){\n\n}",
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                    "code": "public class Solution {\n    public int CountBalls(int lowLimit, int highLimit) {\n        \n    }\n}",
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                    "code": "/**\n * @param {number} lowLimit\n * @param {number} highLimit\n * @return {number}\n */\nvar countBalls = function(lowLimit, highLimit) {\n    \n};",
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                    "code": "# @param {Integer} low_limit\n# @param {Integer} high_limit\n# @return {Integer}\ndef count_balls(low_limit, high_limit)\n    \nend",
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                    "code": "class Solution {\n    func countBalls(_ lowLimit: Int, _ highLimit: Int) -> Int {\n        \n    }\n}",
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                    "lang": "Go",
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                    "code": "func countBalls(lowLimit int, highLimit int) int {\n    \n}",
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                    "code": "object Solution {\n    def countBalls(lowLimit: Int, highLimit: Int): Int = {\n        \n    }\n}",
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                    "code": "class Solution {\n    fun countBalls(lowLimit: Int, highLimit: Int): Int {\n        \n    }\n}",
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                    "lang": "Rust",
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                    "code": "impl Solution {\n    pub fn count_balls(low_limit: i32, high_limit: i32) -> i32 {\n        \n    }\n}",
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                    "code": "class Solution {\n\n    /**\n     * @param Integer $lowLimit\n     * @param Integer $highLimit\n     * @return Integer\n     */\n    function countBalls($lowLimit, $highLimit) {\n        \n    }\n}",
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                    "code": "(define/contract (count-balls lowLimit highLimit)\n  (-> exact-integer? exact-integer? exact-integer?)\n\n  )",
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                    "code": "defmodule Solution do\n  @spec count_balls(low_limit :: integer, high_limit :: integer) :: integer\n  def count_balls(low_limit, high_limit) do\n\n  end\nend",
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            "hints": [
                "Note that both lowLimit and highLimit are of small constraints so you can iterate on all nubmer between them",
                "You can simulate the boxes by counting for each box the number of balls with digit sum equal to that box number"
            ],
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