{"id":1009,"date":"2025-12-23T03:55:05","date_gmt":"2025-12-22T19:55:05","guid":{"rendered":"https:\/\/www.guanhaobo.cn\/?p=1009"},"modified":"2025-12-23T03:55:05","modified_gmt":"2025-12-22T19:55:05","slug":"leetcode-739-%e6%af%8f%e6%97%a5%e6%b8%a9%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/www.guanhaobo.cn\/?p=1009","title":{"rendered":"LeetCode 739 \u2013 \u6bcf\u65e5\u6e29\u5ea6"},"content":{"rendered":"

\u9898\u76ee\u63cf\u8ff0<\/h1>\n

\u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 temperatures \uff0c\u8868\u793a\u6bcf\u5929\u7684\u6e29\u5ea6\uff0c\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4 answer \uff0c\u5176\u4e2d answer[i] \u662f\u6307\u5bf9\u4e8e\u7b2c i \u5929\uff0c\u4e0b\u4e00\u4e2a\u66f4\u9ad8\u6e29\u5ea6\u51fa\u73b0\u5728\u51e0\u5929\u540e\u3002\u5982\u679c\u6c14\u6e29\u5728\u8fd9\u4e4b\u540e\u90fd\u4e0d\u4f1a\u5347\u9ad8\uff0c\u8bf7\u5728\u8be5\u4f4d\u7f6e\u7528 0 \u6765\u4ee3\u66ff\u3002<\/p>\n

\u793a\u4f8b\uff1a
\n\u8f93\u5165: temperatures = [73,74,75,71,69,72,76,73]
\n\u8f93\u51fa: [1,1,4,2,1,1,0,0]<\/p>\n

\u9898\u76ee\u5206\u6790<\/h1>\n

\u54c8\u5e0c\u8868<\/h2>\n

\u9898\u76ee\u6e29\u5ea6\u662f\u6709\u8303\u56f4\u7684\uff0c\u6700\u9ad8100\u5ea6\uff0c\u53ef\u4ee5\u6bcf\u4e2a\u6e29\u5ea6\u6700\u65e9\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002
\n\u5bf9\u4e8e\u6bcf\u5929\uff0c\u90fd\u53ef\u4ee5\u904d\u5386\u4ece\u5f53\u524d\u6e29\u5ea6\u5230100\u5ea6\u4e4b\u95f4\uff0c\u6700\u5c0f\u7684\u4f4d\u7f6e\u3002
\n\u65f6\u95f4\u590d\u6742\u5ea6 O(m * n)\uff0cn\u4e3a\u6570\u7ec4\u957f\u5ea6\uff0cm\u4e3a\u6e29\u5ea6\u8303\u56f4<\/p>\n

\u5355\u8c03\u6808<\/h2>\n

\u4f7f\u7528\u6808\u4fdd\u5b58\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u5165\u6570\u636e\u524d\uff0c\u5148\u5c06\u6240\u6709\u66f4\u5c0f\u7684\u5143\u7d20\u51fa\u6808\uff0c\u4fdd\u6301\u4ece\u6808\u5e95\u5230\u6808\u9876\u6570\u636e\u7684\u5355\u8c03\u9012\u51cf\u3002\u5bf9\u4e8e\u6808\u5185\u6570\u636e\u6765\u8bf4\uff0c\u51fa\u6808\u65f6\u5bf9\u5e94\u7684\u6570\u636e\u5373\u4e3a\u4e0b\u4e00\u4e2a\u66f4\u9ad8\u6e29\u5ea6\u3002
\n\u5b9e\u9645\u4ee3\u7801\u4e2d\uff0c\u6808\u5185\u5b58\u50a8\u4e0b\u6807\u5373\u53ef\uff0c\u901a\u8fc7\u539f\u6570\u7ec4\u8bfb\u53d6\u6570\u636e\u3002
\n\u6bcf\u4e2a\u5143\u7d20\u6700\u591a\u5165\u6808\u4e00\u6b21\u51fa\u6808\u4e00\u6b21\uff0c\u65f6\u95f4\u590d\u6742\u5ea6 O(n)<\/p>\n

Java<\/h1>\n
public int[] dailyTemperatures(int[] temperatures) {\n    Deque<Integer> stack = new LinkedList<>();\n    int[] ans = new int[temperatures.length];\n    for (int i = 0; i < temperatures.length; i++) {\n        while (!stack.isEmpty() && temperatures[stack.peek()] < temperatures[i]) {\n            ans[stack.peek()] = i - stack.peek();\n            stack.pop();\n        }\n        stack.push(i);\n    }\n    return ans;\n}\n<\/code><\/pre>\n
Kotlin<\/h1>\n
fun dailyTemperatures1(temperatures: IntArray): IntArray {\n    val map = IntArray(101)\n    val ans = IntArray(temperatures.size)\n    for (i in temperatures.indices.reversed()) {\n        map[temperatures[i]] = i\n        for (t in (temperatures[i] + 1)..100) {\n            if (map[t] > 0) {\n                ans[i] = if (ans[i] > 0 && ans[i] < map[t] - i) ans[i] else map[t] - i\n            }\n        }\n    }\n    return ans\n}\n\nfun dailyTemperatures2(temperatures: IntArray): IntArray {\n    val stack = LinkedList<Int>()\n    val ans = IntArray(temperatures.size)\n    for (i in temperatures.indices) {\n        while (!stack.isEmpty()) {\n            val index = stack.peek()\n            if (temperatures[index] < temperatures[i]) {\n                stack.pop()\n                ans[index] = i - index\n            } else {\n                break\n            }\n        }\n        stack.push(i)\n    }\n    return ans\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u9898\u76ee\u63cf\u8ff0 \u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 temperatures \uff0c\u8868\u793a\u6bcf\u5929\u7684\u6e29\u5ea6\uff0c\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4 answer \uff0c\u5176\u4e2d a […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[20,76,74],"class_list":["post-1009","post","type-post","status-publish","format-standard","hentry","category-algo","tag-leetcode","tag-76","tag-74"],"_links":{"self":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1009"}],"version-history":[{"count":1,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1009\/revisions"}],"predecessor-version":[{"id":1010,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1009\/revisions\/1010"}],"wp:attachment":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}