{"id":8215,"date":"2026-11-05T16:02:46","date_gmt":"2026-11-05T08:02:46","guid":{"rendered":"https:\/\/www.xinyixx.com\/?p=8215"},"modified":"2026-11-05T16:02:47","modified_gmt":"2026-11-05T08:02:47","slug":"leetcode","status":"publish","type":"post","link":"https:\/\/www.xinyixx.com\/index.php\/2026\/11\/05\/leetcode\/","title":{"rendered":"\u5237 LeetCode \u603b\u662f\u770b\u4e0d\u61c2\u9898\u89e3\uff1f\u8fd9\u4e2a\u7f51\u7ad9\u628a\u6bcf\u4e00\u6b65\u6307\u9488\u90fd\u505a\u6210\u4e86\u52a8\u753b"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u5237\u7b97\u6cd5\u9898\uff0c\u6700\u78e8\u4eba\u7684\u5f80\u5f80\u4e0d\u662f\u5199\u4ee3\u7801\uff0c\u800c\u662f&#8221;\u8111\u5185\u6a21\u62df&#8221;\uff1a\u53cc\u6307\u9488\u5230\u5e95\u8c01\u5148\u52a8\uff1f\u5355\u8c03\u6808\u4ec0\u4e48\u65f6\u5019\u51fa\u6808\uff1fDP \u8868\u683c\u8fd9\u4e00\u683c\u662f\u4ece\u54ea\u4e00\u683c\u63a8\u8fc7\u6765\u7684\uff1f\u9898\u89e3\u91cc\u4e00\u53e5&#8221;\u663e\u7136&#8221;\uff0c\u81ea\u5df1\u5728\u8349\u7a3f\u7eb8\u4e0a\u753b\u534a\u5929\u8fd8\u662f\u4e00\u5934\u96fe\u6c34\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7b97\u6cd5\u52a8\u753b\u5b9e\u9a8c\u5ba4\uff08AlgoLab\uff09<\/strong> \u662f\u4e00\u4e2a\u6253\u5f00\u6d4f\u89c8\u5668\u5c31\u80fd\u7528\u7684 LeetCode \u7ecf\u5178\u9898\u53ef\u89c6\u5316\u7f51\u7ad9\uff1a\u9009\u4e00\u9053\u9898\uff0c\u70b9&#8221;\u64ad\u653e&#8221;\uff0c\u6570\u7ec4\u4e0b\u6807\u3001\u6307\u9488\u3001\u54c8\u5e0c\u8868\u3001\u6808\u3001\u94fe\u8868\u3001\u4e8c\u53c9\u6811\u3001\u56fe\u3001DP \u8868\u683c\u5c31\u4f1a\u4e00\u6b65\u4e00\u6b65\u52a8\u8d77\u6765\uff0c\u65c1\u8fb9\u7684\u4ee3\u7801\u9010\u884c\u9ad8\u4eae\u3001\u53d8\u91cf\u5b9e\u65f6\u53d8\u5316\u3002\u770b\u4e00\u904d\u52a8\u753b\uff0c\u6bd4\u8bfb\u4e09\u904d\u9898\u89e3\u66f4\u5bb9\u6613\u61c2\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udc49 <strong>\u7acb\u5373\u514d\u8d39\u4f7f\u7528 \u2192 <a href=\"https:\/\/leetcode.oooooooo.cn\/\">LEETCODE.OOOOOOOO.CN<\/a><\/strong><\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img decoding=\"async\" width=\"800\" height=\"609\" src=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home.jpg\" alt class=\"wp-image-8217\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home.jpg 800w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home-300x228.jpg 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home-768x585.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/noscript><img decoding=\"async\" width=\"800\" height=\"609\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20609%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-8217 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20609%22%3E%3C%2Fsvg%3E 800w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home.jpg 800w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home-300x228.jpg 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home-768x585.jpg 768w\" data-src=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/01-home.jpg\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u9996\u9875\uff1a56 \u9053\u52a8\u753b\u9898\u300112 \u4e2a\u4e13\u9898\uff0c\u9876\u90e8\u53ef\u6309\u9898\u53f7 \/ \u9898\u540d \/ \u6807\u7b7e\u641c\u7d22\uff0c\u6309\u96be\u5ea6\u7b5b\u9009<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u4e0d\u7528\u5b89\u88c5\uff0c\u6253\u5f00\u5c31\u80fd\u770b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b97\u6cd5\u52a8\u753b\u5b9e\u9a8c\u5ba4\u5b8c\u5168\u8fd0\u884c\u5728\u6d4f\u89c8\u5668\u91cc\uff0c\u4e0d\u9700\u8981\u4e0b\u8f7d\u8f6f\u4ef6\uff0c\u4e5f\u4e0d\u9700\u8981\u914d\u7f6e\u4efb\u4f55\u73af\u5883\u3002\u754c\u9762\u5f88\u6e05\u723d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5de6\u4fa7\u76ee\u5f55<\/strong>\uff1a\u6240\u6709\u9898\u76ee\u6309\u4e13\u9898\u6392\u597d\uff0c\u9898\u53f7\u4e00\u76ee\u4e86\u7136\uff0c\u70b9\u54ea\u9053\u770b\u54ea\u9053\uff1b<\/li>\n\n\n\n<li><strong>\u4e2d\u95f4\u52a8\u753b\u533a<\/strong>\uff1a\u6570\u636e\u7ed3\u6784\u7684\u72b6\u6001\u4ee5\u56fe\u5f62\u65b9\u5f0f\u5c55\u793a\uff0c\u6bcf\u4e00\u6b65\u90fd\u914d\u6709\u4e00\u53e5\u4e2d\u6587\u8bf4\u660e\uff1b<\/li>\n\n\n\n<li><strong>\u4e0b\u65b9\u4ee3\u7801\u533a<\/strong>\uff1aPython \u4ee3\u7801\u9010\u884c\u9ad8\u4eae\uff0c\u5f53\u524d\u6267\u884c\u5230\u54ea\u4e00\u884c\u4e00\u773c\u5c31\u80fd\u770b\u5230\uff1b<\/li>\n\n\n\n<li><strong>\u53f3\u4e0a\u89d2 \u25d0<\/strong>\uff1a\u4e00\u952e\u5207\u6362\u6df1\u8272\u6a21\u5f0f\uff0c\u665a\u4e0a\u5237\u9898\u4e5f\u4e0d\u523a\u773c\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u300156 \u9053\u9ad8\u9891\u7ecf\u5178\u9898\uff0c12 \u4e2a\u4e13\u9898\u5168\u8986\u76d6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7ad9\u7cbe\u9009\u4e86 LeetCode \u4e0a\u6700\u9ad8\u9891\u3001\u6700\u7ecf\u5178\u7684 56 \u9053\u9898\uff08\u7b80\u5355 16 \u9053 \/ \u4e2d\u7b49 35 \u9053 \/ \u56f0\u96be 5 \u9053\uff09\uff0c\u6309\u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5\u601d\u60f3\u5206\u6210 12 \u4e2a\u4e13\u9898\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u4e13\u9898<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5185\u5bb9<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u4ee3\u8868\u9898\u76ee<\/th><\/tr><\/thead><tbody><tr><td>\ud83d\udcca \u6392\u5e8f\u7b97\u6cd5<\/td><td>\u5192\u6ce1\u3001\u5feb\u901f\u3001\u5f52\u5e76\u3001\u5806\u6392\u5e8f<\/td><td>912 \u6392\u5e8f\u6570\u7ec4\uff084 \u79cd\u89e3\u6cd5\uff09<\/td><\/tr><tr><td>\ud83d\udc49 \u6570\u7ec4\u4e0e\u53cc\u6307\u9488<\/td><td>\u54c8\u5e0c\u3001\u76f8\u5411 \/ \u540c\u5411\u53cc\u6307\u9488<\/td><td>1 \u4e24\u6570\u4e4b\u548c\u300115 \u4e09\u6570\u4e4b\u548c\u300142 \u63a5\u96e8\u6c34<\/td><\/tr><tr><td>\ud83e\ude9f \u6ed1\u52a8\u7a97\u53e3<\/td><td>\u53ef\u53d8\u7a97\u53e3\u3001\u5355\u8c03\u961f\u5217<\/td><td>3 \u65e0\u91cd\u590d\u5b57\u7b26\u7684\u6700\u957f\u5b50\u4e32\u300176 \u6700\u5c0f\u8986\u76d6\u5b50\u4e32<\/td><\/tr><tr><td>\ud83c\udfaf \u4e8c\u5206\u67e5\u627e<\/td><td>\u6709\u5e8f\u533a\u95f4\u6298\u534a<\/td><td>704 \u4e8c\u5206\u67e5\u627e\u300133 \u641c\u7d22\u65cb\u8f6c\u6392\u5e8f\u6570\u7ec4<\/td><\/tr><tr><td>\ud83e\udd5e \u6808\u4e0e\u5355\u8c03\u6808<\/td><td>\u62ec\u53f7\u5339\u914d\u3001\u4e0b\u4e00\u4e2a\u66f4\u5927\u5143\u7d20<\/td><td>20 \u6709\u6548\u7684\u62ec\u53f7\u300184 \u67f1\u72b6\u56fe\u4e2d\u6700\u5927\u7684\u77e9\u5f62<\/td><\/tr><tr><td>\ud83d\udd17 \u94fe\u8868<\/td><td>\u6307\u9488\u6539\u5199\u3001\u5feb\u6162\u6307\u9488\u3001LRU<\/td><td>206 \u53cd\u8f6c\u94fe\u8868\u3001141 \u73af\u5f62\u94fe\u8868\u3001146 LRU \u7f13\u5b58<\/td><\/tr><tr><td>\ud83c\udf33 \u4e8c\u53c9\u6811\u4e0e\u5806<\/td><td>\u904d\u5386\u3001\u9012\u5f52\u3001BST\u3001\u5806<\/td><td>102 \u5c42\u5e8f\u904d\u5386\u3001236 \u6700\u8fd1\u516c\u5171\u7956\u5148<\/td><\/tr><tr><td>\ud83d\udd78\ufe0f \u56fe\u4e0e\u641c\u7d22<\/td><td>DFS\u3001BFS\u3001\u62d3\u6251\u3001\u6700\u77ed\u8def\u3001\u5e76\u67e5\u96c6<\/td><td>200 \u5c9b\u5c7f\u6570\u91cf\u3001207 \u8bfe\u7a0b\u8868\u3001743 \u7f51\u7edc\u5ef6\u8fdf\u65f6\u95f4<\/td><\/tr><tr><td>\ud83d\udd19 \u56de\u6eaf<\/td><td>\u6392\u5217\u3001\u5b50\u96c6\u3001N \u7687\u540e<\/td><td>46 \u5168\u6392\u5217\u300178 \u5b50\u96c6\u300151 N \u7687\u540e<\/td><\/tr><tr><td>\ud83e\udde9 \u52a8\u6001\u89c4\u5212<\/td><td>\u4e00\u7ef4\u3001\u80cc\u5305\u3001\u5e8f\u5217\u3001\u4e8c\u7ef4 DP<\/td><td>70 \u722c\u697c\u68af\u3001322 \u96f6\u94b1\u5151\u6362\u300172 \u7f16\u8f91\u8ddd\u79bb<\/td><\/tr><tr><td>\ud83d\udcb0 \u8d2a\u5fc3<\/td><td>\u5c40\u90e8\u6700\u4f18\u63a8\u51fa\u5168\u5c40\u6700\u4f18<\/td><td>121 \u4e70\u5356\u80a1\u7968\u7684\u6700\u4f73\u65f6\u673a\u300156 \u5408\u5e76\u533a\u95f4<\/td><\/tr><tr><td>\ud83d\udd24 \u5b57\u7b26\u4e32\u4e0e\u4f4d\u8fd0\u7b97<\/td><td>\u56de\u6587\u3001KMP\u3001\u5b57\u5178\u6811\u3001\u5f02\u6216<\/td><td>5 \u6700\u957f\u56de\u6587\u5b50\u4e32\u300128 KMP\u3001208 Trie<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u5f20\u9898\u76ee\u5361\u7247\u4e0a\u90fd\u5199\u7740\u4e00\u53e5\u8bdd\u7684\u6838\u5fc3\u601d\u8def\uff0c\u6bd4\u5982&#8221;\u6162\u6307\u9488\u4e00\u6b21\u8d70\u4e00\u6b65\uff0c\u5feb\u6307\u9488\u4e00\u6b21\u8d70\u4e24\u6b65\uff0c\u6709\u73af\u5fc5\u7136\u76f8\u9047&#8221;\u3002\u8fd8\u6ca1\u70b9\u8fdb\u53bb\uff0c\u5c31\u5df2\u7ecf\u8bb0\u4f4f\u4e00\u534a\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9876\u90e8\u7684\u641c\u7d22\u6846\u652f\u6301\u6309<strong>\u9898\u53f7\u3001\u9898\u540d\u6216\u6807\u7b7e<\/strong>\u67e5\u627e\uff0c\u8f93\u5165&#8221;\u4e8c\u5206&#8221;&#8221;\u5355\u8c03\u6808&#8221;&#8221;DP&#8221;\u5c31\u80fd\u628a\u540c\u7c7b\u9898\u4e00\u6b21\u7b5b\u51fa\u6765\uff0c\u914d\u5408&#8221;\u7b80\u5355 \/ \u4e2d\u7b49 \/ \u56f0\u96be&#8221;\u7b5b\u9009\uff0c\u6309\u4e13\u9898\u5237\u9898\u975e\u5e38\u987a\u624b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u9010\u6b65\u64ad\u653e\uff1a\u6bcf\u4e00\u6b65\u6307\u9488\u90fd\u5728\u52a8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u4ee5 42. \u63a5\u96e8\u6c34\u4e3a\u4f8b\uff1a\u4e0a\u65b9\u662f\u67f1\u5b50\uff08\u7070\uff09\u4e0e\u79ef\u6c34\uff08\u84dd\uff09\uff0c\u4e2d\u95f4\u662f height \u6570\u7ec4\u548c l\u3001r \u4e24\u4e2a\u6307\u9488<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u7b97\u6cd5\u52a8\u753b\u5b9e\u9a8c\u5ba4\u6700\u6838\u5fc3\u7684\u529f\u80fd\u3002\u70b9\u8fdb\u4efb\u610f\u4e00\u9053\u9898\uff0c\u4f60\u4f1a\u770b\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u64ad\u653e\u63a7\u5236<\/strong>\uff1a\u23ee \u56de\u5230\u5f00\u5934\u3001\u25c0 \u4e0a\u4e00\u6b65\u3001\u25b6 \u64ad\u653e \/ \u6682\u505c\u3001\u25b6 \u4e0b\u4e00\u6b65\u3001\u23ed \u8df3\u5230\u7ed3\u5c3e\uff0c\u8fd8\u6709\u8fdb\u5ea6\u6761\u53ef\u4ee5\u968f\u610f\u62d6\u52a8\uff1b<\/li>\n\n\n\n<li><strong>\u901f\u5ea6\u8c03\u8282<\/strong>\uff1a0.5\u00d7\u30011\u00d7\u30012\u00d7\u30014\u00d7 \u56db\u6863\uff0c\u96be\u70b9\u6162\u653e\uff0c\u719f\u6089\u7684\u90e8\u5206\u5feb\u8fdb\uff1b<\/li>\n\n\n\n<li><strong>\u952e\u76d8\u5feb\u6377\u952e<\/strong>\uff1a<code>\u2190<\/code> <code>\u2192<\/code> \u5355\u6b65\u524d\u8fdb \/ \u540e\u9000\uff0c<code>\u7a7a\u683c<\/code> \u64ad\u653e \/ \u6682\u505c\uff0c\u53cc\u624b\u4e0d\u7528\u79bb\u5f00\u952e\u76d8\uff1b<\/li>\n\n\n\n<li><strong>\u6bcf\u6b65\u8bf4\u660e<\/strong>\uff1a\u4f8b\u5982&#8221;rightMax=2 \u2264 leftMax=2\uff0c\u7ed3\u7b97\u53f3\u8fb9\uff1a\u4f4d\u7f6e 9 \u5b58\u6c34 2 \u2212 1 = 1&#8243;\uff0c\u628a&#8221;\u4e3a\u4ec0\u4e48\u8fd9\u6837\u8d70&#8221;\u76f4\u63a5\u5199\u5728\u52a8\u753b\u4e0b\u9762\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u540c\u7c7b\u578b\u7684\u9898\u76ee\u6709\u4e0d\u540c\u7684\u53ef\u89c6\u5316\u65b9\u5f0f\uff1a\u6570\u7ec4\u9898\u770b\u4e0b\u6807\u548c\u6307\u9488\u79fb\u52a8\uff0c\u6808\u548c\u961f\u5217\u770b\u5143\u7d20\u8fdb\u51fa\uff0c\u94fe\u8868\u770b <code>next<\/code> \u6307\u9488\u4e00\u6839\u6839\u6389\u5934\uff0c\u4e8c\u53c9\u6811\u770b\u904d\u5386\u987a\u5e8f\u548c\u9012\u5f52\u8c03\u7528\u6808\u7684\u5c55\u5f00\u4e0e\u56de\u6eaf\uff0c\u56fe\u641c\u7d22\u770b BFS \u4e00\u5708\u5708\u5411\u5916\u6269\u6563\uff0c\u52a8\u6001\u89c4\u5212\u5219\u76f4\u63a5\u628a\u6574\u5f20 DP \u8868\u683c\u4e00\u683c\u4e00\u683c\u586b\u51fa\u6765\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u4ee3\u7801\u9010\u884c\u9ad8\u4eae + \u53d8\u91cf\u9762\u677f\uff0c\u548c\u52a8\u753b\u5b8c\u5168\u540c\u6b65<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code.jpg\" alt class=\"wp-image-8221\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code.jpg 800w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code-300x225.jpg 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20600%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-8221 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20600%22%3E%3C%2Fsvg%3E 800w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code.jpg 800w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code-300x225.jpg 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code-768x576.jpg 768w\" data-src=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/03-trap-code.jpg\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u52a8\u753b\u8d70\u5230\u7b2c 7 \u6b65\u65f6\uff0c\u4ee3\u7801\u9ad8\u4eae\u505c\u5728 <code>ans += rmax - h[r]; r -= 1<\/code>\uff0c\u53d8\u91cf\u9762\u677f\u540c\u6b65\u663e\u793a\u5f53\u524d\u503c<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f88\u591a\u53ef\u89c6\u5316\u5de5\u5177\u53ea\u6709\u52a8\u753b\u3001\u6ca1\u6709\u4ee3\u7801\uff0c\u770b\u5b8c\u8fd8\u662f\u4e0d\u4f1a\u5199\u3002\u7b97\u6cd5\u52a8\u753b\u5b9e\u9a8c\u5ba4\u628a<strong>\u52a8\u753b\u3001\u4ee3\u7801\u3001\u53d8\u91cf<\/strong>\u4e09\u8005\u7ed1\u5728\u4e00\u8d77\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u52a8\u753b\u6bcf\u8d70\u4e00\u6b65\uff0c\u4ee3\u7801\u533a\u5c31\u9ad8\u4eae\u5f53\u524d\u6267\u884c\u7684\u90a3\u4e00\u884c\uff1b<\/li>\n\n\n\n<li>\u4e0b\u65b9<strong>\u53d8\u91cf\u9762\u677f<\/strong>\u5b9e\u65f6\u663e\u793a <code>l<\/code>\u3001<code>r<\/code>\u3001<code>lmax<\/code>\u3001<code>rmax<\/code>\u3001<code>ans<\/code> \u7b49\u5173\u952e\u53d8\u91cf\u7684\u503c\uff1b<\/li>\n\n\n\n<li>\u4ee3\u7801\u77ed\u5c0f\u7cbe\u70bc\uff0c\u57fa\u672c\u5c31\u662f\u9762\u8bd5\u65f6\u80fd\u76f4\u63a5\u5199\u51fa\u6765\u7684\u6807\u51c6\u7b54\u6848\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u770b\u52a8\u753b\u7406\u89e3\u601d\u8def\uff0c\u770b\u9ad8\u4eae\u5bf9\u5e94\u4ee3\u7801\uff0c\u770b\u53d8\u91cf\u6838\u5bf9\u7ec6\u8282\uff0c\u8fd9\u4e09\u8005\u5bf9\u4e0a\u4e86\uff0c\u8fd9\u9053\u9898\u5c31\u7b97\u771f\u6b63\u5403\u900f\u4e86\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u8f93\u5165\u4f60\u81ea\u5df1\u7684\u6d4b\u8bd5\u6570\u636e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ed8\u8ba4\u6837\u4f8b\u770b\u61c2\u4e86\uff0c\u6362\u4e00\u7ec4\u6570\u636e\u8fd8\u884c\u5417\uff1f\u6bcf\u9053\u9898\u7684\u52a8\u753b\u4e0a\u65b9\u90fd\u6709\u8f93\u5165\u6846\uff0c\u6bd4\u5982\u63a5\u96e8\u6c34\u53ef\u4ee5\u6539 <code>height<\/code> \u6570\u7ec4\uff0c\u7f16\u8f91\u8ddd\u79bb\u53ef\u4ee5\u6539 <code>word1<\/code> \u548c <code>word2<\/code>\uff0c\u6539\u5b8c\u70b9 <strong>&#8220;\u25b6 \u7528\u8fd9\u7ec4\u6570\u636e\u8fd0\u884c&#8221;<\/strong>\uff0c\u52a8\u753b\u5c31\u6309\u4f60\u7684\u6570\u636e\u91cd\u65b0\u751f\u6210\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u5df1\u5199\u7684\u4ee3\u7801\u5728\u67d0\u4e2a\u7528\u4f8b\u4e0a\u51fa\u9519\u4e86\uff1f\u628a\u90a3\u7ec4\u6570\u636e\u653e\u8fdb\u6765\u8dd1\u4e00\u904d\uff0c\u770b\u770b\u6b63\u786e\u89e3\u6cd5\u6bcf\u4e00\u6b65\u662f\u600e\u4e48\u8d70\u7684\uff0c\u6bd4\u5bf9\u7740\u62a5\u9519\u4fe1\u606f\u5e72\u77aa\u773c\u9ad8\u6548\u5f97\u591a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001DP \u8868\u683c\u4e00\u683c\u4e00\u683c\u586b\uff0c\u6df1\u8272\u6a21\u5f0f\u4e5f\u62a4\u773c<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark.jpg\" alt class=\"wp-image-8222\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark.jpg 800w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark-300x225.jpg 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20600%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-8222 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20600%22%3E%3C%2Fsvg%3E 800w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark.jpg 800w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark-300x225.jpg 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark-768x576.jpg 768w\" data-src=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2026\/10\/04-dp-dark.jpg\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>72. \u7f16\u8f91\u8ddd\u79bb\uff1adp \u8868\u4e00\u683c\u4e00\u683c\u586b\uff0c\u5f53\u524d\u683c\u548c\u5b83\u4f9d\u8d56\u7684\u683c\u5b50\u7528\u4e0d\u540c\u989c\u8272\u6807\u51fa<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u52a8\u6001\u89c4\u5212\u662f\u5f88\u591a\u4eba\u5237\u9898\u8def\u4e0a\u6700\u5927\u7684\u574e\u3002\u72b6\u6001\u8f6c\u79fb\u65b9\u7a0b\u770b\u7740\u7b80\u5355\uff0c\u771f\u5230\u586b\u8868\u65f6\u5374\u4e0d\u77e5\u9053&#8221;\u8fd9\u4e00\u683c\u5230\u5e95\u4ece\u54ea\u6765&#8221;\u3002\u5728\u7b97\u6cd5\u52a8\u753b\u5b9e\u9a8c\u5ba4\u91cc\uff0c8 \u9053 DP \u9898\u90fd\u80fd\u770b\u5230\u5b8c\u6574\u7684\u586b\u8868\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u722c\u697c\u68af \/ \u6253\u5bb6\u52ab\u820d<\/strong>\uff1a\u4e00\u7ef4 DP \u6570\u7ec4\u4ece\u5de6\u5230\u53f3\u63a8\u8fdb\uff1b<\/li>\n\n\n\n<li><strong>\u96f6\u94b1\u5151\u6362 \/ \u5206\u5272\u7b49\u548c\u5b50\u96c6<\/strong>\uff1a\u5b8c\u5168\u80cc\u5305\u548c 0-1 \u80cc\u5305\u7684\u904d\u5386\u987a\u5e8f\u5dee\u5f02\u4e00\u76ee\u4e86\u7136\uff1b<\/li>\n\n\n\n<li><strong>\u6700\u957f\u516c\u5171\u5b50\u5e8f\u5217 \/ \u7f16\u8f91\u8ddd\u79bb<\/strong>\uff1a\u4e8c\u7ef4\u8868\u683c\u4e2d\uff0c\u5f53\u524d\u683c\u548c\u5b83\u4f9d\u8d56\u7684\u5de6\u8fb9\u3001\u4e0a\u8fb9\u3001\u5de6\u4e0a\u683c\u5b50\u540c\u65f6\u9ad8\u4eae\uff0c\u6bcf\u6b65\u90fd\u8bf4\u660e&#8221;\u5b57\u7b26\u76f8\u540c\u53d6\u5de6\u4e0a&#8221;&#8221;\u4e0d\u540c\u53d6\u4e09\u8005\u6700\u5c0f + 1&#8243;\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u4e0d\u53ea\u662f\u52a8\u753b\uff1a\u89e3\u9898\u601d\u8def\u3001\u590d\u6742\u5ea6\u3001\u6613\u9519\u70b9\u4e00\u5e94\u4ff1\u5168<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u52a8\u753b\u4e0b\u65b9\u8fd8\u6709\u4e00\u4efd\u7cbe\u70bc\u7684\u9898\u89e3\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud83d\udca1 \u89e3\u9898\u601d\u8def<\/strong>\uff1a\u7528\u51e0\u53e5\u8bdd\u8bb2\u6e05\u6838\u5fc3\u60f3\u6cd5\uff0c\u6bd4\u5982\u63a5\u96e8\u6c34\u7684&#8221;\u77ed\u677f\u51b3\u5b9a\u6c34\u4f4d&#8221;\uff1b<\/li>\n\n\n\n<li><strong>\u65f6\u95f4 \/ \u7a7a\u95f4\u590d\u6742\u5ea6<\/strong>\uff1a\u76f4\u63a5\u6807\u51fa\uff0c\u9762\u8bd5\u65f6\u88ab\u8ffd\u95ee\u4e5f\u4e0d\u614c\uff1b<\/li>\n\n\n\n<li><strong>\ud83e\udde0 \u6280\u5de7\u4e0e\u6613\u9519\u70b9<\/strong>\uff1a\u5217\u51fa\u591a\u79cd\u89e3\u6cd5\u7684\u5bf9\u6bd4\u548c\u5e38\u89c1\u5751\uff0c\u6bd4\u5982&#8221;\u5148\u66f4\u65b0 max \u518d\u8ba1\u7b97\u6c34\u91cf\uff0c\u6c34\u91cf\u4e0d\u4f1a\u662f\u8d1f\u6570&#8221;\uff1b<\/li>\n\n\n\n<li><strong>\u540c\u7c7b\u9898\u63a8\u8350<\/strong>\uff1a\u63a5\u96e8\u6c34\u540e\u9762\u4f1a\u63a8\u8350 11 \u76db\u6700\u591a\u6c34\u7684\u5bb9\u5668\u300184 \u67f1\u72b6\u56fe\u4e2d\u6700\u5927\u7684\u77e9\u5f62\uff0c\u987a\u85e4\u6478\u74dc\u4e00\u6b21\u5237\u4e00\u7c7b\uff1b<\/li>\n\n\n\n<li><strong>\u539f\u9898\u76f4\u8fbe<\/strong>\uff1a\u6bcf\u9053\u9898\u90fd\u9644\u6709 <strong>LeetCode \u539f\u9898<\/strong> \u548c <strong>\u529b\u6263\u4e2d\u6587<\/strong> \u94fe\u63a5\uff0c\u770b\u61c2\u4e86\u9a6c\u4e0a\u53bb\u63d0\u4ea4\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u9875\u9762\u5e95\u90e8\u8fd8\u6709&#8221;\u4e0a\u4e00\u9898 \/ \u4e0b\u4e00\u9898&#8221;\u5bfc\u822a\uff0c\u53ef\u4ee5\u50cf\u770b\u8bfe\u7a0b\u4e00\u6837\u6309\u4e13\u9898\u987a\u5e8f\u4e00\u8def\u5237\u4e0b\u53bb\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u9002\u5408\u8c01\u7528\uff1f<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b97\u6cd5\u5165\u95e8\u7684\u540c\u5b66<\/strong>\uff1a\u6570\u636e\u7ed3\u6784\u8bfe\u5b66\u5b8c\u8fd8\u662f\u4e0d\u4f1a\u5199\u4ee3\u7801\uff1f\u770b\u52a8\u753b\u628a\u62bd\u8c61\u7684\u6307\u9488\u548c\u9012\u5f52\u53d8\u6210\u770b\u5f97\u89c1\u7684\u8fc7\u7a0b\uff1b<\/li>\n\n\n\n<li><strong>\u51c6\u5907\u9762\u8bd5\u7684\u6c42\u804c\u8005<\/strong>\uff1a56 \u9053\u9898\u57fa\u672c\u8986\u76d6\u5927\u5382\u9762\u8bd5\u9ad8\u9891\u9898\u578b\uff0c\u6309\u4e13\u9898\u8fc7\u4e00\u904d\uff0c\u67e5\u6f0f\u8865\u7f3a\uff1b<\/li>\n\n\n\n<li><strong>\u5907\u6218\u8003\u7814 \/ \u7ade\u8d5b\u7684\u5b66\u751f<\/strong>\uff1a\u6392\u5e8f\u3001\u4e8c\u5206\u3001DP\u3001\u56fe\u8bba\u8fd9\u4e9b\u57fa\u672c\u529f\uff0c\u7528\u52a8\u753b\u5de9\u56fa\u5370\u8c61\u66f4\u6df1\u523b\uff1b<\/li>\n\n\n\n<li><strong>\u8001\u5e08\u548c\u52a9\u6559<\/strong>\uff1a\u4e0a\u8bfe\u76f4\u63a5\u6253\u5f00\u7f51\u9875\u6f14\u793a\uff0c\u6bd4\u5728\u9ed1\u677f\u4e0a\u753b\u6307\u9488\u6e05\u695a\u5f97\u591a\uff0c\u8fd8\u80fd\u73b0\u573a\u6539\u6570\u636e\u6f14\u793a\u8fb9\u754c\u60c5\u51b5\uff1b<\/li>\n\n\n\n<li><strong>\u5199\u6280\u672f\u535a\u5ba2\u7684\u4f5c\u8005<\/strong>\uff1a\u8bb2\u89e3\u67d0\u9053\u9898\u65f6\uff0c\u914d\u4e0a\u52a8\u753b\u94fe\u63a5\uff0c\u8bfb\u8005\u4e00\u70b9\u5c31\u61c2\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u9700\u8981\u5b89\u88c5\u8f6f\u4ef6\u6216\u63d2\u4ef6\u5417\uff1f<\/strong> \u4e0d\u9700\u8981\u3002\u6253\u5f00\u6d4f\u89c8\u5668\u8bbf\u95ee\u7f51\u5740\u5373\u53ef\uff0c\u63a8\u8350\u4f7f\u7528 Chrome\u3001Edge \u7b49\u65b0\u7248\u6d4f\u89c8\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u9700\u8981\u6ce8\u518c\u767b\u5f55\u5417\uff1f<\/strong> \u4e0d\u9700\u8981\u3002\u6253\u5f00\u7f51\u7ad9\u5c31\u80fd\u76f4\u63a5\u770b\u9898\u3001\u64ad\u653e\u52a8\u753b\u548c\u8f93\u5165\u81ea\u5b9a\u4e49\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u662f\u4ec0\u4e48\u8bed\u8a00\uff1f<\/strong> \u76ee\u524d\u5c55\u793a\u7684\u662f Python \u4ee3\u7801\uff0c\u5199\u6cd5\u7b80\u6d01\uff0c\u7528\u5176\u4ed6\u8bed\u8a00\u7684\u540c\u5b66\u4e5f\u80fd\u8f7b\u677e\u770b\u61c2\u601d\u8def\u5e76\u81ea\u884c\u6539\u5199\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u80fd\u7528\u81ea\u5df1\u7684\u6570\u636e\u6d4b\u8bd5\u5417\uff1f<\/strong> 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