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            "title": "Minimum Number of Operations to Convert Time",
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            "content": "<p>You are given two strings <code>current</code> and <code>correct</code> representing two <strong>24-hour times</strong>.</p>\n\n<p>24-hour times are formatted as <code>&quot;HH:MM&quot;</code>, where <code>HH</code> is between <code>00</code> and <code>23</code>, and <code>MM</code> is between <code>00</code> and <code>59</code>. The earliest 24-hour time is <code>00:00</code>, and the latest is <code>23:59</code>.</p>\n\n<p>In one operation you can increase the time <code>current</code> by <code>1</code>, <code>5</code>, <code>15</code>, or <code>60</code> minutes. You can perform this operation <strong>any</strong> number of times.</p>\n\n<p>Return <em>the <strong>minimum number of operations</strong> needed to convert </em><code>current</code><em> to </em><code>correct</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> current = &quot;02:30&quot;, correct = &quot;04:35&quot;\n<strong>Output:</strong> 3\n<strong>Explanation:\n</strong>We can convert current to correct in 3 operations as follows:\n- Add 60 minutes to current. current becomes &quot;03:30&quot;.\n- Add 60 minutes to current. current becomes &quot;04:30&quot;.\n- Add 5 minutes to current. current becomes &quot;04:35&quot;.\nIt can be proven that it is not possible to convert current to correct in fewer than 3 operations.</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> current = &quot;11:00&quot;, correct = &quot;11:01&quot;\n<strong>Output:</strong> 1\n<strong>Explanation:</strong> We only have to add one minute to current, so the minimum number of operations needed is 1.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>current</code> and <code>correct</code> are in the format <code>&quot;HH:MM&quot;</code></li>\n\t<li><code>current &lt;= correct</code></li>\n</ul>\n",
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                    "code": "class Solution(object):\n    def convertTime(self, current, correct):\n        \"\"\"\n        :type current: str\n        :type correct: str\n        :rtype: int\n        \"\"\"\n        ",
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                    "code": "public class Solution {\n    public int ConvertTime(string current, string correct) {\n        \n    }\n}",
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                    "code": "/**\n * @param {string} current\n * @param {string} correct\n * @return {number}\n */\nvar convertTime = function(current, correct) {\n    \n};",
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                    "code": "# @param {String} current\n# @param {String} correct\n# @return {Integer}\ndef convert_time(current, correct)\n    \nend",
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                    "code": "impl Solution {\n    pub fn convert_time(current: String, correct: String) -> i32 {\n        \n    }\n}",
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                    "code": "class Solution {\n\n    /**\n     * @param String $current\n     * @param String $correct\n     * @return Integer\n     */\n    function convertTime($current, $correct) {\n        \n    }\n}",
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            "hints": [
                "Convert the times to minutes.",
                "Use the operation with the biggest value possible at each step."
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