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"content": "<p>Given a string <code>s</code> and a dictionary of strings <code>wordDict</code>, return <code>true</code> if <code>s</code> can be segmented into a space-separated sequence of one or more dictionary words.</p>\n\n<p><strong>Note</strong> that the same word in the dictionary may be reused multiple times in the segmentation.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "leetcode", wordDict = ["leet","code"]\n<strong>Output:</strong> true\n<strong>Explanation:</strong> Return true because "leetcode" can be segmented as "leet code".\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "applepenapple", wordDict = ["apple","pen"]\n<strong>Output:</strong> true\n<strong>Explanation:</strong> Return true because "applepenapple" can be segmented as "apple pen apple".\nNote that you are allowed to reuse a dictionary word.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "catsandog", wordDict = ["cats","dog","sand","and","cat"]\n<strong>Output:</strong> false\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= s.length <= 300</code></li>\n\t<li><code>1 <= wordDict.length <= 1000</code></li>\n\t<li><code>1 <= wordDict[i].length <= 20</code></li>\n\t<li><code>s</code> and <code>wordDict[i]</code> consist of only lowercase English letters.</li>\n\t<li>All the strings of <code>wordDict</code> are <strong>unique</strong>.</li>\n</ul>\n",
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"exampleTestcases": "\"leetcode\"\n[\"leet\",\"code\"]\n\"applepenapple\"\n[\"apple\",\"pen\"]\n\"catsandog\"\n[\"cats\",\"dog\",\"sand\",\"and\",\"cat\"]",
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"code": "class Solution(object):\n def wordBreak(self, s, wordDict):\n \"\"\"\n :type s: str\n :type wordDict: List[str]\n :rtype: bool\n \"\"\"\n ",
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Adding an item to a hash.</b>\\r\\n<pre>\\r\\nstruct hash_entry {\\r\\n int id; /* we'll use this field as the key */\\r\\n char name[10];\\r\\n UT_hash_handle hh; /* makes this structure hashable */\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>2. Looking up an item in a hash:</b>\\r\\n<pre>\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n struct hash_entry *s;\\r\\n HASH_FIND_INT(users, &user_id, s);\\r\\n return s;\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>3. 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