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"title": "Search Suggestions System",
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"content": "<p>You are given an array of strings <code>products</code> and a string <code>searchWord</code>.</p>\n\n<p>Design a system that suggests at most three product names from <code>products</code> after each character of <code>searchWord</code> is typed. Suggested products should have common prefix with <code>searchWord</code>. If there are more than three products with a common prefix return the three lexicographically minimums products.</p>\n\n<p>Return <em>a list of lists of the suggested products after each character of </em><code>searchWord</code><em> is typed</em>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> products = ["mobile","mouse","moneypot","monitor","mousepad"], searchWord = "mouse"\n<strong>Output:</strong> [\n["mobile","moneypot","monitor"],\n["mobile","moneypot","monitor"],\n["mouse","mousepad"],\n["mouse","mousepad"],\n["mouse","mousepad"]\n]\n<strong>Explanation:</strong> products sorted lexicographically = ["mobile","moneypot","monitor","mouse","mousepad"]\nAfter typing m and mo all products match and we show user ["mobile","moneypot","monitor"]\nAfter typing mou, mous and mouse the system suggests ["mouse","mousepad"]\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> products = ["havana"], searchWord = "havana"\n<strong>Output:</strong> [["havana"],["havana"],["havana"],["havana"],["havana"],["havana"]]\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> products = ["bags","baggage","banner","box","cloths"], searchWord = "bags"\n<strong>Output:</strong> [["baggage","bags","banner"],["baggage","bags","banner"],["baggage","bags"],["bags"]]\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= products.length <= 1000</code></li>\n\t<li><code>1 <= products[i].length <= 3000</code></li>\n\t<li><code>1 <= sum(products[i].length) <= 2 * 10<sup>4</sup></code></li>\n\t<li>All the strings of <code>products</code> are <strong>unique</strong>.</li>\n\t<li><code>products[i]</code> consists of lowercase English letters.</li>\n\t<li><code>1 <= searchWord.length <= 1000</code></li>\n\t<li><code>searchWord</code> consists of lowercase English letters.</li>\n</ul>\n",
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"exampleTestcases": "[\"mobile\",\"mouse\",\"moneypot\",\"monitor\",\"mousepad\"]\n\"mouse\"\n[\"havana\"]\n\"havana\"\n[\"bags\",\"baggage\",\"banner\",\"box\",\"cloths\"]\n\"bags\"",
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"lang": "C++",
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"code": "class Solution {\npublic:\n vector<vector<string>> suggestedProducts(vector<string>& products, string searchWord) {\n \n }\n};",
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"code": "class Solution {\n public List<List<String>> suggestedProducts(String[] products, String searchWord) {\n \n }\n}",
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"code": "class Solution(object):\n def suggestedProducts(self, products, searchWord):\n \"\"\"\n :type products: List[str]\n :type searchWord: str\n :rtype: List[List[str]]\n \"\"\"\n ",
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"code": "class Solution:\n def suggestedProducts(self, products: List[str], searchWord: str) -> List[List[str]]:\n ",
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"code": "\n\n/**\n * Return an array of arrays of size *returnSize.\n * The sizes of the arrays are returned as *returnColumnSizes array.\n * Note: Both returned array and *columnSizes array must be malloced, assume caller calls free().\n */\nchar *** suggestedProducts(char ** products, int productsSize, char * searchWord, int* returnSize, int** returnColumnSizes){\n\n}",
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"code": "public class Solution {\n public IList<IList<string>> SuggestedProducts(string[] products, string searchWord) {\n \n }\n}",
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"code": "/**\n * @param {string[]} products\n * @param {string} searchWord\n * @return {string[][]}\n */\nvar suggestedProducts = function(products, searchWord) {\n \n};",
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"code": "# @param {String[]} products\n# @param {String} search_word\n# @return {String[][]}\ndef suggested_products(products, search_word)\n \nend",
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"code": "class Solution {\n func suggestedProducts(_ products: [String], _ searchWord: String) -> [[String]] {\n \n }\n}",
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"lang": "Go",
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"code": "func suggestedProducts(products []string, searchWord string) [][]string {\n \n}",
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"code": "object Solution {\n def suggestedProducts(products: Array[String], searchWord: String): List[List[String]] = {\n \n }\n}",
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"code": "class Solution {\n fun suggestedProducts(products: Array<String>, searchWord: String): List<List<String>> {\n \n }\n}",
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"lang": "Rust",
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"code": "impl Solution {\n pub fn suggested_products(products: Vec<String>, search_word: String) -> Vec<Vec<String>> {\n \n }\n}",
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"lang": "PHP",
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"code": "class Solution {\n\n /**\n * @param String[] $products\n * @param String $searchWord\n * @return String[][]\n */\n function suggestedProducts($products, $searchWord) {\n \n }\n}",
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"code": "function suggestedProducts(products: string[], searchWord: string): string[][] {\n\n};",
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"hints": [
"Brute force is a good choice because length of the string is ≤ 1000.",
"Binary search the answer.",
"Use Trie data structure to store the best three matching. Traverse the Trie."
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"sampleTestCase": "[\"mobile\",\"mouse\",\"moneypot\",\"monitor\",\"mousepad\"]\n\"mouse\"",
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