{"id":399,"date":"2026-01-19T22:44:09","date_gmt":"2026-01-19T14:44:09","guid":{"rendered":"https:\/\/jdoxk3.cn\/?p=399"},"modified":"2026-01-19T22:44:49","modified_gmt":"2026-01-19T14:44:49","slug":"%e4%bb%a3%e7%a0%81%e9%9a%8f%e6%83%b3%e5%bd%95%e7%ae%97%e6%b3%95%e8%ae%ad%e7%bb%83%e8%90%a5%e7%ac%ac%e5%85%ad%e5%a4%a9-242-%e6%9c%89%e6%95%88%e7%9a%84%e5%ad%97%e6%af%8d%e5%bc%82%e4%bd%8d%e8%af%8d","status":"publish","type":"post","link":"https:\/\/jdoxk3.cn\/index.php\/2026\/01\/19\/%e4%bb%a3%e7%a0%81%e9%9a%8f%e6%83%b3%e5%bd%95%e7%ae%97%e6%b3%95%e8%ae%ad%e7%bb%83%e8%90%a5%e7%ac%ac%e5%85%ad%e5%a4%a9-242-%e6%9c%89%e6%95%88%e7%9a%84%e5%ad%97%e6%af%8d%e5%bc%82%e4%bd%8d%e8%af%8d\/","title":{"rendered":"\u4ee3\u7801\u968f\u60f3\u5f55\u7b97\u6cd5\u8bad\u7ec3\u8425\u7b2c\u516d\u5929 | 242.\u6709\u6548\u7684\u5b57\u6bcd\u5f02\u4f4d\u8bcd\uff0c349.\u4e24\u4e2a\u6570\u7ec4\u7684\u4ea4\u96c6\uff0c202.\u5feb\u4e50\u6570\uff0c1.\u4e24\u6570\u4e4b\u548c"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\u524d\u8a00<\/h1>\n\n\n\n<p>\u4eca\u5929\u662f\u7b97\u6cd5\u8bad\u7ec3\u8425\u7684\u7b2c\u516d\u5929\uff0c\u7b2c\u4e94\u5929\u7a76\u6781\u5927\u4f11\uff0c\u4eca\u5929\u4e00\u89c9\u7761\u5230\u4e0b\u5348\u4e94\u70b9\ud83d\ude06\uff0c\u4e0b\u6b21\u4f11\u606f\u65e5\u8be5\u5c1d\u8bd5\u628a\u4e4b\u524d\u7684\u9898\u91cd\u5237\u7ec3\u7ec3\u624b\u4e86\u3002<\/p>\n\n\n\n<p>\u4ece\u4eca\u5929\u5f00\u59cb\u8fdb\u5165\u54c8\u5e0c\u8868\u73af\u8282\uff0c\u54c8\u5e0c\u8868\u5728\u4e4b\u524d\u5237 hot100 \u65f6\u7ecf\u5e38\u7528\u5230\uff0c\u7ed3\u679c\u9694\u4e86\u4e00\u4e2a\u591a\u6708\u4e0d\u505a\u9898\u53c8\u5fd8\u5dee\u4e0d\u591a\u4e86\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u54c8\u5e0c\u8868\u7406\u8bba\u57fa\u7840<\/h1>\n\n\n\n<p>\u8bb0\u5f97\u7b2c\u4e00\u6b21\u770b\u5230\u54c8\u5e0c\u8868\u8fd9\u8bcd\u513f\u65f6\u89c9\u5f97\u597d\u9ad8\u5927\u4e0a\uff0c\u4e0b\u610f\u8bc6\u8ba4\u4e3a\u8fd9\u4e1c\u897f\u4e00\u5b9a\u5f88\u96be\uff0c\u7531\u4e8e\u754f\u96be\u60c5\u7eea\u52a0\u4e0a\u6821\u5185\u6570\u636e\u7ed3\u6784\u8bfe\u7a0b\u6ca1\u597d\u597d\u5b66\uff0c\u5f53\u6211\u771f\u7684\u6c89\u4e0b\u5fc3\u6765\u8ba4\u8bc6\u5b83\u65f6\u53d1\u73b0\u5e76\u4e0d\u5982\u6211\u60f3\u8c61\u4e2d\u7684\u90a3\u4e48\u9a87\u4eba\u3002<\/p>\n\n\n\n<p><code>\u54c8\u5e0c\u8868<\/code>(\u82f1\u8bed\uff1aHash table)\uff0c\u901a\u5e38\u79f0\u4e3a\u6563\u5217\u8868\uff0c\u662f<strong>\u6839\u636e\u952e\u800c\u76f4\u63a5\u8bbf\u95ee\u5728\u5b58\u50a8\u5668\u5b58\u50a8\u4f4d\u7f6e\u7684\u6570\u636e\u7ed3\u6784<\/strong>\u3002\u54c8\u5e0c\u8868\u901a\u8fc7\u4f7f\u7528\u4e00\u4e2a\u8ba1\u7b97\u952e\u503c\u7684\u51fd\u6570\uff0c\u5c06\u6570\u636e\u6620\u5c04\u5230\u8868\u4e2d\u7684\u67d0\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u8fd9\u79cd\u65b9\u5f0f\u52a0\u5feb\u4e86\u67e5\u8be2\u901f\u5ea6\uff0c\u8fd0\u7528\u5230\u7684\u51fd\u6570\u53eb\u505a<code>\u54c8\u5e0c\u51fd\u6570\u6216\u6563\u5217\u51fd\u6570<\/code>\uff0c\u5b58\u653e\u8bb0\u5f55\u7684\u6570\u7ec4(\u4e5f\u53ef\u4ee5\u662f\u5176\u4ed6\u7ed3\u6784)\u53eb\u505a<code>\u54c8\u5e0c\u8868\u6216\u6563\u5217\u8868<\/code>\u3002<\/p>\n\n\n\n<p><strong>\u5f53\u6211\u4eec\u9700\u8981\u5feb\u901f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u51fa\u73b0\u5728\u96c6\u5408\u91cc\u65f6\uff0c\u9700\u8981\u7b2c\u4e00\u65f6\u95f4\u8003\u8651\u54c8\u5e0c\u6cd5\uff0c\u54c8\u5e0c\u6cd5\u7a76\u5176\u672c\u8d28\u662f\u7a7a\u95f4\u6362\u65f6\u95f4\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u672c\u6982\u5ff5<\/h2>\n\n\n\n<p>\u82e5\u5173\u952e\u8bcd\u4e3ak\uff0c\u5219\u5176\u503c\u5b58\u653e\u5728f(k)\u7684\u5b58\u50a8\u4f4d\u7f6e\u4e0a\uff0c\u8fd9\u4e2a\u5bf9\u5e94\u5173\u7cfb f \u4e3a<code>\u54c8\u5e0c\u51fd\u6570<\/code>\uff0c\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u5efa\u7acb\u7684\u8868\u79f0\u4e3a<code>\u54c8\u5e0c\u8868<\/code>\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u7ecf\u8fc7\u54c8\u5e0c\u51fd\u6570\u540e\u5f97\u5230\u7684\u6570\u503c\u8d85\u8fc7\u54c8\u5e0c\u8868\u7684\u5927\u5c0f\u4e86\uff0c\u6b64\u65f6\u4e3a\u4e86\u4fdd\u969c\u6620\u5c04\u51fa\u6765\u7684\u6240\u6709\u7d22\u5f15\u503c\u90fd\u5728\u54c8\u5e0c\u8868\u4e0a\uff0c\u4f1a\u5bf9\u6570\u503c\u8fdb\u884c<strong>\u53d6\u6a21\u64cd\u4f5c<\/strong>\u4fdd\u969c\u6570\u636e\u4e00\u5b9a\u80fd\u6620\u5c04\u5230\u54c8\u5e0c\u8868\u4e0a\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\uff0c\u8fd9\u4e48\u505a\u5bf9\u4e0d\u540c\u7684\u5173\u952e\u5b57\u53ef\u80fd\u5f97\u5230\u540c\u4e00\u54c8\u5e0c\u8868\u5730\u5740\u5373k1 \u2260 k2\uff0c\u800cf(k1) = f(k2)\uff0c\u8fd9\u79cd\u73b0\u8c61\u79f0\u4e3a<code>\u51b2\u7a81<\/code>\uff0c\u5177\u6709\u76f8\u540c\u51fd\u6570\u503c\u7684\u5173\u952e\u5b57\u5bf9\u8be5\u54c8\u5e0c\u51fd\u6570\u79f0\u4e3a<code>\u540c\u4e49\u8bcd<\/code>\u3002<\/p>\n\n\n\n<p>\u82e5\u5bf9\u4e8e\u5173\u952e\u5b57\u96c6\u5408\u4e2d\u7684\u4efb\u4e00\u4e2a\u5173\u952e\u5b57\uff0c\u7ecf\u8fc7\u6563\u5217\u51fd\u6570\u955c\u50cf\u5230\u5730\u5740\u96c6\u5408\u4e2d\u4efb\u4f55\u4e00\u4e2a\u5730\u5740\u7684\u6982\u7387\u662f\u76f8\u7b49\u7684\uff0c\u5219\u79f0\u6b64\u7c7b\u6563\u5217\u51fd\u6570\u4e3a<code>\u5747\u5300\u54c8\u5e0c\u51fd\u6570<\/code>\uff0c\u8fd9\u6837\u505a\u53ef\u4ee5\u51cf\u5c11\u51b2\u7a81\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u51b3\u51b2\u7a81<\/h2>\n\n\n\n<p>\u4e00\u822c\u54c8\u5e0c\u51b2\u7a81\u6709\u4e24\u79cd\u89e3\u51b3\u65b9\u6cd5\uff1a<code>\u62c9\u94fe\u6cd5<\/code>\u548c<code>\u7ebf\u6027\u63a2\u6d4b\u6cd5<\/code>\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u5206\u522b\u5bf9\u5e94 wiki \u4e2d\u8bb0\u5f55\u5230\u7684\u805a\u96c6\uff08\u6216\u5806\u79ef\uff09\u548c\u5f00\u653e\u5bfb\u5740\u6cd5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u62c9\u94fe\u6cd5<\/h3>\n\n\n\n<p>\u5c06\u53d1\u751f\u51b2\u7a81\u7684\u5143\u7d20\u90fd\u5b58\u50a8\u5728\u94fe\u8868\u5f53\u4e2d\uff0c\u8fd9\u6837\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u627e\u5230\u6570\u636e\u3002\u5728\u5b9e\u73b0\u65f6\uff0c\u9664\u4e86\u4f7f\u7528\u94fe\u8868\u8fd8\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u6808\u7b49\u65b9\u5f0f\uff0c\u5177\u4f53\u8bbe\u8ba1\u6a21\u5f0f\u5b8c\u5168\u53d6\u51b3\u4e8e\u600e\u6837\u65b9\u4fbf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ebf\u6027\u63a2\u6d4b\u6cd5<\/h3>\n\n\n\n<p>\u9010\u4e2a\u63a2\u6d4b\u5b58\u653e\u5730\u5740\u7684\u8868\uff0c\u76f4\u5230\u67e5\u627e\u5230\u4e00\u4e2a\u7a7a\u5355\u5143\uff0c\u5c06\u54c8\u5e0c\u5730\u5740\u5b58\u653e\u5728\u8be5\u7a7a\u5355\u5143\u3002<\/p>\n\n\n\n<p>\u5728\u7ebf\u6027\u63a2\u6d4b\u7684\u57fa\u7840\u4e0a\uff0c\u6839\u636e\u63a2\u6d4b\u6a21\u5f0f\u7684\u4e0d\u540c\uff0c\u8fd8\u6709\u5e73\u65b9\u63a2\u6d4b\u548c\u4f2a\u968f\u673a\u63a2\u6d4b\u7b49\u65b9\u5f0f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u7684\u4e09\u79cd\u54c8\u5e0c\u7ed3\u6784<\/h2>\n\n\n\n<p>\u5f53\u6211\u4eec\u60f3\u4f7f\u7528\u54c8\u5e0c\u8868\u89e3\u51b3\u95ee\u9898\u65f6\uff0c\u901a\u5e38\u4f1a\u9009\u62e9\u4f7f\u7528\u4ee5\u4e0b\u4e09\u79cd\u6570\u636e\u7ed3\u6784\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u7ec4<\/li>\n\n\n\n<li>set \u96c6\u5408<\/li>\n\n\n\n<li>map\u6620\u5c04\uff0c\u5728 python \u91cc\u7684\u5177\u4f53\u5b9e\u73b0\u4e3a\u5b57\u5178 dict<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">242.\u6709\u6548\u7684\u5b57\u6bcd\u5f02\u4f4d\u8bcd<\/h1>\n\n\n\n<p>\u9898\u76ee\u94fe\u63a5\uff1a<a href=\"https:\/\/leetcode.cn\/problems\/valid-anagram\/\">242. \u6709\u6548\u7684\u5b57\u6bcd\u5f02\u4f4d\u8bcd<\/a><\/p>\n\n\n\n<p>\u9898\u76ee\u63cf\u8ff0\uff1a<\/p>\n\n\n\n<p>\u7ed9\u5b9a\u4e24\u4e2a\u5b57\u7b26\u4e32 <code>s<\/code> \u548c <code>t<\/code> \uff0c\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\u6765\u5224\u65ad <code>t<\/code> \u662f\u5426\u662f <code>s<\/code> \u7684 \u5b57\u6bcd\u5f02\u4f4d\u8bcd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u601d\u8def<\/h2>\n\n\n\n<p>\u9996\u5148\u662f\u5224\u65ad\u9700\u8981\u54ea\u79cd\u54c8\u5e0c\u7ed3\u6784\uff0c\u5982\u679c\u6570\u636e\u7ed3\u6784\u4f7f\u7528\u4e0d\u5f53\u5c06\u6d6a\u8d39\u5927\u91cf\u7a7a\u95f4\uff0c\u6b64\u5904\u7531\u4e8e\u5b57\u6bcd\u6570\u91cf\u53ea\u6709 26 \u4f4d\uff0c\u6240\u4ee5\u9009\u7528\u6570\u7ec4\u3002\u5b9a\u4e49\u4e00\u4e2a\u6570\u7ec4\u7528\u6765\u8bb0\u5f55\u5b57\u7b26\u4e32 s \u4e2d\uff0c\u6bcf\u4e2a\u5b57\u7b26\u51fa\u73b0\u7684\u6b21\u6570\uff0c\u5982\u679c\u51fa\u73b0\u6b21\u6570\u76f8\u7b49\uff0c\u90a3\u4e48\u4e24\u4e2a\u5b57\u7b26\u4e32\u4e92\u4e3a\u5b57\u6bcd\u5f02\u4f4d\u8bcd\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u5f0f\u662f\u5148\u8bb0\u5f55\u5b57\u7b26\u4e32 s \u6bcf\u4e2a\u5b57\u7b26\u51fa\u73b0\u7684\u6b21\u6570\uff0c\u7136\u540e\u518d\u5224\u65ad\u5b57\u7b26\u4e32 t \u4e2d\u7684\u5143\u7d20\u662f\u5426\u6709\u91cd\u5408\uff0c\u5982\u679c\u6709\u5c31\u5728 record \u54c8\u5e0c\u8868\u91cc\u5c06\u5bf9\u5e94\u5b57\u6bcd\u6b21\u6570\u51cf 1\uff0c\u6700\u540e\u5982\u679c record \u6240\u6709\u5b57\u6bcd\u5bf9\u5e94\u503c\u7686\u4e3a 0\uff0c\u90a3\u4e48\u8bf4\u660e\u4e24\u4e2a\u5b57\u7b26\u4e32\u4e92\u4e3a\u5b57\u6bcd\u5f02\u4f4d\u8bcd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u73b0\u5199\u6cd5<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u00a0class Solution:\n    def isAnagram(self, s: str, t: str) -> bool:\n        record = &#91;0] * 26\n        for i in s:\n            record&#91;ord(i) - ord(\"a\")] += 1\n        for i in t:\n            record&#91;ord(i) - ord(\"a\")] -= 1\n        \n        for i in range(26):\n            if record&#91;i] != 0:\n                return False\n        return True<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">349.\u4e24\u4e2a\u6570\u7ec4\u7684\u4ea4\u96c6<\/h1>\n\n\n\n<p>\u9898\u76ee\u94fe\u63a5\uff1a<a href=\"https:\/\/leetcode.cn\/problems\/intersection-of-two-arrays\/\">349. \u4e24\u4e2a\u6570\u7ec4\u7684\u4ea4\u96c6<\/a><\/p>\n\n\n\n<p>\u9898\u76ee\u63cf\u8ff0\uff1a\u7ed9\u5b9a\u4e24\u4e2a\u6570\u7ec4 <code>nums1<\/code> \u548c <code>nums2<\/code> \uff0c\u8fd4\u56de <em>\u5b83\u4eec\u7684 \u4ea4\u96c6<\/em> \u3002\u8f93\u51fa\u7ed3\u679c\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u4e00\u5b9a\u662f <strong>\u552f\u4e00<\/strong> \u7684\u3002\u6211\u4eec\u53ef\u4ee5 <strong>\u4e0d\u8003\u8651\u8f93\u51fa\u7ed3\u679c\u7684\u987a\u5e8f<\/strong> \u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u601d\u8def<\/h2>\n\n\n\n<p>\u4f7f\u7528\u4e00\u4e2a\u5b57\u5178\u6765\u8bb0\u5f55 nums1 \u4e2d\u6bcf\u4e2a\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\uff0c\u7136\u540e\u518d\u8ba9 nums2 \u4e2d\u6bcf\u4e00\u4e2a\u5143\u7d20\u4e0e\u5b57\u5178\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679c\u5bf9\u5e94\u503c\u5728\u5b57\u5178\u4e2d\u5b58\u5728\u4e14\u975e\u96f6\uff0c\u5c31\u5b58\u5165 result \u96c6\u5408\u4e2d\u7b49\u5f85\u8f93\u51fa\uff0c\u7136\u540e\u5220\u9664\u5b57\u5178\u4e2d\u5bf9\u5e94\u952e\u503c\u5bf9\uff08\u4e0d\u5220\u4e5f\u80fd\u8fd0\u884c\uff09\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u73b0\u5199\u6cd5<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>class Solution:\n    def intersection(self, nums1: List&#91;int], nums2: List&#91;int]) -> List&#91;int]:\n        table = {}\n        for i in nums1:\n            table&#91;i] = table.get(i, 0) + 1\n        \n        res = set()\n        for i in nums2:\n            if i in table:\n                res.add(i)\n                \/\/delete table&#91;i]\n        return list(res)<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">202.\u5feb\u4e50\u6570<\/h1>\n\n\n\n<p>\u9898\u76ee\u94fe\u63a5\uff1a<a href=\"https:\/\/leetcode.cn\/problems\/happy-number\/\">202. \u5feb\u4e50\u6570<\/a><\/p>\n\n\n\n<p>\u9898\u76ee\u63cf\u8ff0\uff1a<\/p>\n\n\n\n<p>\u7f16\u5199\u4e00\u4e2a\u7b97\u6cd5\u6765\u5224\u65ad\u4e00\u4e2a\u6570 n \u662f\u4e0d\u662f\u5feb\u4e50\u6570\u3002<\/p>\n\n\n\n<p>\u300c\u5feb\u4e50\u6570\u300d\u5b9a\u4e49\u4e3a\uff1a\u5bf9\u4e8e\u4e00\u4e2a\u6b63\u6574\u6570\uff0c\u6bcf\u4e00\u6b21\u5c06\u8be5\u6570\u66ff\u6362\u4e3a\u5b83\u6bcf\u4e2a\u4f4d\u7f6e\u4e0a\u7684\u6570\u5b57\u7684\u5e73\u65b9\u548c\uff0c\u7136\u540e\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\u76f4\u5230\u8fd9\u4e2a\u6570\u53d8\u4e3a 1\uff0c\u4e5f\u53ef\u80fd\u662f \u65e0\u9650\u5faa\u73af \u4f46\u59cb\u7ec8\u53d8\u4e0d\u5230 1\u3002\u5982\u679c \u53ef\u4ee5\u53d8\u4e3a 1\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u5c31\u662f\u5feb\u4e50\u6570\u3002<\/p>\n\n\n\n<p>\u5982\u679c n \u662f\u5feb\u4e50\u6570\u5c31\u8fd4\u56de True \uff1b\u4e0d\u662f\uff0c\u5219\u8fd4\u56de False \u3002<\/p>\n\n\n\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n\n\n\n<p>\u8f93\u5165\uff1a19 \u8f93\u51fa\uff1atrue \u89e3\u91ca\uff1a 1^2 + 9^2 = 82 8^2 + 2^2 = 68 6^2 + 8^2 = 100 1^2 + 0^2 + 0^2 = 1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u601d\u8def<\/h2>\n\n\n\n<p>\u521a\u770b\u5230\u8fd9\u9053\u9898\u65f6\u6211\u7684\u60f3\u6cd5\u88ab\u9898\u76ee\u63cf\u8ff0\u7275\u7740\u8d70\uff0c\u4ee5\u4e3a\u53c8\u662f\u4e00\u9053\u7c7b\u4f3c\u8fc7\u7a0b\u6a21\u62df\u7684\u5199\u6cd5\uff0c\u6b63\u5f53\u8fd8\u5728\u601d\u8003\u5982\u4f55\u5224\u65ad\u662f\u5426\u9677\u5165\u65e0\u9650\u5faa\u73af\uff0c\u770b\u4e86\u6587\u6863\u540e\u624d\u53d1\u73b0\u53ea\u9700\u8981\u5224\u65ad\u6bcf\u4f4d\u6570\u5b57\u5e73\u65b9\u548c\u662f\u5426\u91cd\u590d\u51fa\u73b0\u5c31\u53ef\u4ee5\u5224\u65ad\u51fa\u65e0\u9650\u5faa\u73af\u3002<\/p>\n\n\n\n<p>\u505a\u6cd5\u662f\u5148\u5bf9\u6570\u5b57 n \u8fdb\u884c\u6bcf\u4f4d\u6570\u5b57\u5e73\u65b9\u548c\u7684\u8fd0\u7b97\uff0c\u7136\u540e\u4f7f\u7528\u54c8\u5e0c\u6cd5\u5224\u65ad\u6570\u5b57\u5e73\u65b9\u548c\u5728\u5148\u524d\u662f\u5426\u6709\u51fa\u73b0\u8fc7\uff0c\u5982\u679c\u6709\u5219\u8bf4\u660e\u4e0d\u662f\u5feb\u4e50\u6570\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u73b0\u5199\u6cd5<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u00a0class Solution:\n    def isHappy(self, n: int) -> bool:\n        record = set()\n        while True:\n            n = self.get_sum(n)\n            if n == 1:\n                return True\n            \n           \n            if n in record:\n                return False\n            else:\n                record.add(n)\n    \n        \n    def get_sum(self, n: int) -> int:\n        num_sum = 0\n        while n :\n            n, r =divmod(n, 10)\n            num_sum += r ** 2\n        return num_sum<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">1.\u4e24\u6570\u4e4b\u548c<\/h1>\n\n\n\n<p>\u9898\u76ee\u94fe\u63a5:<a href=\"https:\/\/leetcode.cn\/problems\/two-sum\/\">1. \u4e24\u6570\u4e4b\u548c<\/a><\/p>\n\n\n\n<p>\u9898\u76ee\u63cf\u8ff0\uff1a<\/p>\n\n\n\n<p>\u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 nums \u548c\u4e00\u4e2a\u76ee\u6807\u503c target\uff0c\u8bf7\u4f60\u5728\u8be5\u6570\u7ec4\u4e2d\u627e\u51fa\u548c\u4e3a\u76ee\u6807\u503c\u7684\u90a3 \u4e24\u4e2a \u6574\u6570\uff0c\u5e76\u8fd4\u56de\u4ed6\u4eec\u7684\u6570\u7ec4\u4e0b\u6807\u3002<\/p>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5047\u8bbe\u6bcf\u79cd\u8f93\u5165\u53ea\u4f1a\u5bf9\u5e94\u4e00\u4e2a\u7b54\u6848\u3002\u4f46\u662f\uff0c\u6570\u7ec4\u4e2d\u540c\u4e00\u4e2a\u5143\u7d20\u4e0d\u80fd\u4f7f\u7528\u4e24\u904d\u3002<\/p>\n\n\n\n<p><strong>\u793a\u4f8b:<\/strong><\/p>\n\n\n\n<p>\u7ed9\u5b9a nums = [2, 7, 11, 15], target = 9<\/p>\n\n\n\n<p>\u56e0\u4e3a nums[0] + nums[1] = 2 + 7 = 9<\/p>\n\n\n\n<p>\u6240\u4ee5\u8fd4\u56de [0, 1]<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u601d\u8def<\/h2>\n\n\n\n<p>\u8fd9\u9053\u9898\u66f4\u662f\u8001\u751f\u5e38\u8c08\u4e86\uff0c\u66b4\u529b\u6cd5\u4e0d\u518d\u8d58\u8ff0\u3002\u5148\u524d\u5df2\u7ecf\u6709\u4f7f\u7528\u8fc7\u54c8\u5e0c\u6cd5\u89e3\u51b3\u8fd9\u9053\u9898\uff0c\u5177\u4f53\u601d\u8def\u5c31\u662f\u5bf9\u6570\u7ec4\u4e2d\u6bcf\u4e00\u4e2a\u6570\u503c\u8fdb\u884c\u5224\u65ad\uff0c\u5224\u65ad target &#8211; nums[i] \u662f\u5426\u5b58\u5728\u4e8e nums \u4e2d\uff0c\u5982\u679c\u5b58\u5728\u5c31\u8f93\u51fa\u4e24\u4e2a\u7d22\u5f15\uff0c\u603b\u4f53\u6765\u8bf4\u6bd4\u8f83\u7b80\u5355\uff0c\u7531\u4e8e\u8981\u4f7f\u7528\u5230\u7d22\u5f15\u548c\u503c\u7684\u952e\u503c\u5bf9\uff0c\u6240\u4ee5\u9009\u62e9\u4f7f\u7528\u5b57\u5178\u6765\u4f5c\u4e3a\u6570\u636e\u7ed3\u6784\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u73b0\u5199\u6cd5<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u00a0class Solution:\n    def twoSum(self, nums: List&#91;int], target: int) -> List&#91;int]:\n        record = dict()\n        for index, value in enumerate(nums):\n            if target - value in record:\n                return &#91;record&#91;target - value], index]\n            record&#91;value] = index\n        return &#91;]<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u603b\u7ed3<\/h1>\n\n\n\n<p>\u5728\u4eca\u5929\u7684\u8bad\u7ec3\u91cc\uff0c\u6211\u4eec\u4e3b\u8981\u5b66\u4e60\u4e86\u54c8\u5e0c\u8868\u7684\u57fa\u7840\u6982\u5ff5\u4ee5\u53ca\u4e09\u4e2a\u5e38\u7528\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5728\u9898\u76ee\u7684\u8bad\u7ec3\u4e2d\u5206\u522b\u5bf9\u4e09\u79cd\u6570\u636e\u7ed3\u6784\u7684\u9002\u7528\u573a\u666f\u8fdb\u884c\u5206\u6790\u3002\u603b\u4f53\u6765\u8bf4\uff0c\u54c8\u5e0c\u6cd5\u5728\u7406\u89e3\u8d77\u6765\u8fd8\u662f\u76f8\u5bf9\u6765\u8bf4\u6bd4\u8f83\u7b80\u5355\uff0c\u4ee5\u540e\u770b\u5230\u9700\u8981\u6211\u4eec\u5224\u65ad\u67d0\u4e2a\u503c\u662f\u5426\u5728\u96c6\u5408\u91cc\u7684\u7c7b\u4f3c\u9898\u76ee\u65f6\uff0c\u9700\u8981\u7b2c\u4e00\u65f6\u95f4\u8003\u8651\u80fd\u5426\u7528\u54c8\u5e0c\u8868\u6765\u89e3\u51b3\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u4eca\u5929\u662f\u7b97\u6cd5\u8bad\u7ec3\u8425\u7684\u7b2c\u516d\u5929\uff0c\u7b2c\u4e94\u5929\u7a76\u6781\u5927\u4f11\uff0c\u4eca\u5929\u4e00\u89c9\u7761\u5230\u4e0b\u5348\u4e94\u70b9\ud83d\ude06\uff0c\u4e0b\u6b21\u4f11\u606f\u65e5\u8be5\u5c1d\u8bd5\u628a\u4e4b\u524d\u7684\u9898\u91cd\u5237\u7ec3\u7ec3\u624b\u4e86 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[13,15,14],"class_list":["post-399","post","type-post","status-publish","format-standard","hentry","category-python","tag-python","tag-15","tag-14"],"_links":{"self":[{"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/posts\/399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/comments?post=399"}],"version-history":[{"count":7,"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/posts\/399\/revisions"}],"predecessor-version":[{"id":406,"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/posts\/399\/revisions\/406"}],"wp:attachment":[{"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/media?parent=399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/categories?post=399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jdoxk3.cn\/index.php\/wp-json\/wp\/v2\/tags?post=399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}