{"id":1068,"date":"2026-01-02T13:48:43","date_gmt":"2026-01-02T05:48:43","guid":{"rendered":"https:\/\/www.guanhaobo.cn\/?p=1068"},"modified":"2026-01-02T13:48:43","modified_gmt":"2026-01-02T05:48:43","slug":"leetcode-135-%e5%88%86%e5%8f%91%e7%b3%96%e6%9e%9c","status":"publish","type":"post","link":"https:\/\/www.guanhaobo.cn\/?p=1068","title":{"rendered":"LeetCode 135 \u2013 \u5206\u53d1\u7cd6\u679c"},"content":{"rendered":"

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

n \u4e2a\u5b69\u5b50\u7ad9\u6210\u4e00\u6392\u3002\u7ed9\u4f60\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 ratings \u8868\u793a\u6bcf\u4e2a\u5b69\u5b50\u7684\u8bc4\u5206\u3002
\n\u4f60\u9700\u8981\u6309\u7167\u4ee5\u4e0b\u8981\u6c42\uff0c\u7ed9\u8fd9\u4e9b\u5b69\u5b50\u5206\u53d1\u7cd6\u679c\uff1a
\n\u6bcf\u4e2a\u5b69\u5b50\u81f3\u5c11\u5206\u914d\u5230 1 \u4e2a\u7cd6\u679c\u3002
\n\u76f8\u90bb\u4e24\u4e2a\u5b69\u5b50\u4e2d\uff0c\u8bc4\u5206\u66f4\u9ad8\u7684\u90a3\u4e2a\u4f1a\u83b7\u5f97\u66f4\u591a\u7684\u7cd6\u679c\u3002
\n\u8bf7\u4f60\u7ed9\u6bcf\u4e2a\u5b69\u5b50\u5206\u53d1\u7cd6\u679c\uff0c\u8ba1\u7b97\u5e76\u8fd4\u56de\u9700\u8981\u51c6\u5907\u7684 \u6700\u5c11\u7cd6\u679c\u6570\u76ee \u3002<\/p>\n

\u793a\u4f8b\uff1a
\n\u8f93\u5165\uff1aratings = [1,0,2]
\n\u8f93\u51fa\uff1a5<\/p>\n

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

\u8d2a\u5fc3\u3002
\n\u4ece\u5de6\u5411\u53f3\u626b\u63cf\u4e00\u904d\uff0cratings[i] > ratings[i-1] \u65f6\u4ee4 nums[i] = nums[i-1] + 1
\n\u518d\u4ece\u53f3\u5411\u5de6\u626b\u63cf\u4e00\u904d\uff0cratings[i] > ratings[i+1] \u65f6\u4ee4 nums[i] >= nums[i+1] + 1<\/p>\n

Java<\/h1>\n
public int candy(int[] ratings) {\n    int[] nums = new int[ratings.length];\n    for (int i = 0; i < ratings.length; i++) {\n        nums[i] = 1;\n        if (i - 1 >= 0 && ratings[i] > ratings[i - 1]) {\n            nums[i] = nums[i - 1] + 1;\n        }\n    }\n    int sum = 0;\n    for (int i = ratings.length - 1; i >= 0; i--) {\n        if (i + 1 < ratings.length && ratings[i] > ratings[i + 1]) {\n            nums[i] = Math.max(nums[i], nums[i + 1] + 1);\n        }\n        sum += nums[i];\n    }\n    return sum;\n}\n<\/code><\/pre>\n
Kotlin<\/h1>\n
fun candy(ratings: IntArray): Int {\n    val nums = IntArray(ratings.size) { 1 }\n    for (i in 1 until ratings.size) {\n        if (ratings[i] > ratings[i - 1]) {\n            nums[i] = nums[i - 1] + 1\n        }\n    }\n    for (i in ratings.size - 2 downTo 0) {\n        if (ratings[i] > ratings[i + 1]) {\n            nums[i] = max(nums[i], nums[i + 1] + 1)\n        }\n    }\n\n    return nums.sum()\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u9898\u76ee\u63cf\u8ff0 n \u4e2a\u5b69\u5b50\u7ad9\u6210\u4e00\u6392\u3002\u7ed9\u4f60\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 ratings \u8868\u793a\u6bcf\u4e2a\u5b69\u5b50\u7684\u8bc4\u5206\u3002 \u4f60\u9700\u8981\u6309\u7167\u4ee5\u4e0b\u8981\u6c42\uff0c\u7ed9\u8fd9 […]<\/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":[20,62],"class_list":["post-1068","post","type-post","status-publish","format-standard","hentry","category-algo","tag-leetcode","tag-62"],"_links":{"self":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1068","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=1068"}],"version-history":[{"count":1,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1068\/revisions"}],"predecessor-version":[{"id":1069,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1068\/revisions\/1069"}],"wp:attachment":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}