{
  "type": "code_options",
  "author": "csdn.net",
  "source": "solution.md",
  "exercise_id": "3811b4bc0ee248018c22605381ba608c",
  "keywords": "哈希表,字符串,滑动窗口",
  "title": "无重复字符的最长子串",
  "desc": [
    {
      "content": "\n<p>给定一个字符串，请你找出其中不含有重复字符的 <strong>最长子串 </strong>的长度。</p><p> </p><p><strong>示例 1:</strong></p><pre><strong>输入: </strong>s = \"abcabcbb\"<strong><br />输出: </strong>3 <strong><br />解释:</strong> 因为无重复字符的最长子串是 \"abc\"，所以其长度为 3。</pre><p><strong>示例 2:</strong></p><pre><strong>输入: </strong>s = \"bbbbb\"<strong><br />输出: </strong>1<strong><br />解释: </strong>因为无重复字符的最长子串是 \"b\"，所以其长度为 1。</pre><p><strong>示例 3:</strong></p><pre><strong>输入: </strong>s = \"pwwkew\"<strong><br />输出: </strong>3<strong><br />解释: </strong>因为无重复字符的最长子串是 \"wke\"，所以其长度为 3。 \n请注意，你的答案必须是 <strong>子串 </strong>的长度，\"pwke\" 是一个<em>子序列，</em>不是子串。</pre><p><strong>示例 4:</strong></p><pre><strong>输入: </strong>s = \"\"<strong><br />输出: </strong>0</pre><p> </p><p><strong>提示：</strong></p><ul>\t<li><code>0 <= s.length <= 5 * 10<sup>4</sup></code></li>\t<li><code>s</code> 由英文字母、数字、符号和空格组成</li></ul>",
      "language": "markdown"
    }
  ],
  "answer": [
    {
      "content": "",
      "language": "java"
    }
  ],
  "prepared": [
    [
      {
        "content": "",
        "language": "java"
      }
    ],
    [
      {
        "content": "",
        "language": "java"
      }
    ],
    [
      {
        "content": "",
        "language": "java"
      }
    ]
  ],
  "template": {
    "content": "class Solution {\n\tpublic int lengthOfLongestSubstring(String s) {\n\t\tint i = 0;\n\t\tint j = 0;\n\t\tint m = 0;\n\t\tMap<Integer, Integer> hset = new HashMap<>();\n\t\tfor (; j < s.length(); j++) {\n\t\t\tint code = s.codePointAt(j);\n\t\t\tInteger o = hset.get(code);\n\t\t\tif (o != null && o > i) {\n\t\t\t\ti = o;\n\t\t\t}\n\t\t\tm = m > j - i + 1 ? m : j - i + 1;\n\t\t\thset.put(code, j + 1);\n\t\t}\n\t\treturn m;\n\t}\n}",
    "language": "java"
  },
  "node_id": "dailycode-ce734aa4eff1425fab72592000d1eaba",
  "license": "csdn.net",
  "created_at": 1637894159,
  "topic_link": "https://bbs.csdn.net/topics/600471011"
}