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            "questionId": "2309",
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            "title": "Maximize Number of Subsequences in a String",
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            "content": "<p>You are given a <strong>0-indexed</strong> string <code>text</code> and another <strong>0-indexed</strong> string <code>pattern</code> of length <code>2</code>, both of which consist of only lowercase English letters.</p>\n\n<p>You can add <strong>either</strong> <code>pattern[0]</code> <strong>or</strong> <code>pattern[1]</code> anywhere in <code>text</code> <strong>exactly once</strong>. Note that the character can be added even at the beginning or at the end of <code>text</code>.</p>\n\n<p>Return <em>the <strong>maximum</strong> number of times</em> <code>pattern</code> <em>can occur as a <strong>subsequence</strong> of the modified </em><code>text</code>.</p>\n\n<p>A <b>subsequence</b> is a string that can be derived from another string by deleting some or no characters without changing the order of the remaining characters.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> text = &quot;abdcdbc&quot;, pattern = &quot;ac&quot;\n<strong>Output:</strong> 4\n<strong>Explanation:</strong>\nIf we add pattern[0] = &#39;a&#39; in between text[1] and text[2], we get &quot;ab<u><strong>a</strong></u>dcdbc&quot;. Now, the number of times &quot;ac&quot; occurs as a subsequence is 4.\nSome other strings which have 4 subsequences &quot;ac&quot; after adding a character to text are &quot;<u><strong>a</strong></u>abdcdbc&quot; and &quot;abd<u><strong>a</strong></u>cdbc&quot;.\nHowever, strings such as &quot;abdc<u><strong>a</strong></u>dbc&quot;, &quot;abd<u><strong>c</strong></u>cdbc&quot;, and &quot;abdcdbc<u><strong>c</strong></u>&quot;, although obtainable, have only 3 subsequences &quot;ac&quot; and are thus suboptimal.\nIt can be shown that it is not possible to get more than 4 subsequences &quot;ac&quot; by adding only one character.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> text = &quot;aabb&quot;, pattern = &quot;ab&quot;\n<strong>Output:</strong> 6\n<strong>Explanation:</strong>\nSome of the strings which can be obtained from text and have 6 subsequences &quot;ab&quot; are &quot;<u><strong>a</strong></u>aabb&quot;, &quot;aa<u><strong>a</strong></u>bb&quot;, and &quot;aab<u><strong>b</strong></u>b&quot;.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= text.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>pattern.length == 2</code></li>\n\t<li><code>text</code> and <code>pattern</code> consist only of lowercase English letters.</li>\n</ul>\n",
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            "exampleTestcases": "\"abdcdbc\"\n\"ac\"\n\"aabb\"\n\"ab\"",
            "categoryTitle": "Algorithms",
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                    "name": "Greedy",
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                    "name": "Prefix Sum",
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                    "code": "class Solution {\npublic:\n    long long maximumSubsequenceCount(string text, string pattern) {\n        \n    }\n};",
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                    "code": "class Solution(object):\n    def maximumSubsequenceCount(self, text, pattern):\n        \"\"\"\n        :type text: str\n        :type pattern: str\n        :rtype: int\n        \"\"\"\n        ",
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                    "code": "\n\nlong long maximumSubsequenceCount(char * text, char * pattern){\n\n}",
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                    "code": "public class Solution {\n    public long MaximumSubsequenceCount(string text, string pattern) {\n        \n    }\n}",
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                    "code": "/**\n * @param {string} text\n * @param {string} pattern\n * @return {number}\n */\nvar maximumSubsequenceCount = function(text, pattern) {\n    \n};",
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                    "code": "# @param {String} text\n# @param {String} pattern\n# @return {Integer}\ndef maximum_subsequence_count(text, pattern)\n    \nend",
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                    "code": "class Solution {\n    func maximumSubsequenceCount(_ text: String, _ pattern: String) -> Int {\n        \n    }\n}",
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                    "code": "func maximumSubsequenceCount(text string, pattern string) int64 {\n    \n}",
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                    "code": "impl Solution {\n    pub fn maximum_subsequence_count(text: String, pattern: String) -> i64 {\n        \n    }\n}",
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                    "code": "(define/contract (maximum-subsequence-count text pattern)\n  (-> string? string? exact-integer?)\n\n  )",
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                    "code": "-spec maximum_subsequence_count(Text :: unicode:unicode_binary(), Pattern :: unicode:unicode_binary()) -> integer().\nmaximum_subsequence_count(Text, Pattern) ->\n  .",
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                    "code": "defmodule Solution do\n  @spec maximum_subsequence_count(text :: String.t, pattern :: String.t) :: integer\n  def maximum_subsequence_count(text, pattern) do\n\n  end\nend",
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            "hints": [
                "Find the optimal position to add pattern[0] so that the number of subsequences is maximized. Similarly, find the optimal position to add pattern[1].",
                "For each of the above cases, count the number of times the pattern occurs as a subsequence in text. The larger count is the required answer."
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            "solution": null,
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            "sampleTestCase": "\"abdcdbc\"\n\"ac\"",
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