{"rsdb":{"rid":"397618","subhead":"","postdate":"0","aid":"273659","fid":"76","uid":"1","topic":"1","content":"<div id=\"cnblogs_post_body\" class=\"blogpost-body cnblogs-markdown\"> \n <h3 id=\"\u6b22\u8fce\u8bbf\u95ee\u6211\u7684github\">\u6b22\u8fce\u8bbf\u95ee\u6211\u7684GitHub<\/h3> \n <blockquote> \n  <p>\u8fd9\u91cc\u5206\u7c7b\u548c\u6c47\u603b\u4e86\u6b23\u5bb8\u7684\u5168\u90e8\u539f\u521b(\u542b\u914d\u5957\u6e90\u7801)\uff1a<a target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/zq2599\/blog_demos<\/a><\/p> \n <\/blockquote> \n <h3 id=\"\u672c\u7bc7\u6982\u89c8\">\u672c\u7bc7\u6982\u89c8<\/h3> \n <h3 id=\"\u672c\u7bc7\u6982\u89c8-1\">\u672c\u7bc7\u6982\u89c8<\/h3> \n <ul> \n  <li>\u8fd9\u662f\u9053\u9ad8\u9891\u9762\u8bd5\u9898\uff0c\u503c\u5f97\u4e00\u770b<\/li> \n  <li>\u9996\u5148\uff0c\u8fd9\u9053\u9898\u7684\u96be\u5ea6\u662f<font color=\"blue\"><strong>\u4e2d\u7b49<\/strong><\/font><\/li> \n  <li>\u6765\u770b\u9898\u76ee\u63cf\u8ff0\uff1a<\/li> \n <\/ul> \n <pre><code class=\"language-shell\">\u7ed9\u4f60\u4e00\u4e2a\u6574\u6570 n \uff0c\u8fd4\u56de \u548c\u4e3a n \u7684\u5b8c\u5168\u5e73\u65b9\u6570\u7684\u6700\u5c11\u6570\u91cf \u3002\n\n\u5b8c\u5168\u5e73\u65b9\u6570 \u662f\u4e00\u4e2a\u6574\u6570\uff0c\u5176\u503c\u7b49\u4e8e\u53e6\u4e00\u4e2a\u6574\u6570\u7684\u5e73\u65b9\uff1b\u6362\u53e5\u8bdd\u8bf4\uff0c\u5176\u503c\u7b49\u4e8e\u4e00\u4e2a\u6574\u6570\u81ea\u4e58\u7684\u79ef\u3002\u4f8b\u5982\uff0c1\u30014\u30019 \u548c 16 \u90fd\u662f\u5b8c\u5168\u5e73\u65b9\u6570\uff0c\u800c 3 \u548c 11 \u4e0d\u662f\u3002\n<\/code><\/pre> \n <ul> \n  <li>\u793a\u4f8b1\uff1a<\/li> \n <\/ul> \n <pre><code class=\"language-shell\">\u8f93\u5165\uff1an = 12\n\u8f93\u51fa\uff1a3 \n\u89e3\u91ca\uff1a12 = 4 + 4 + 4\n<\/code><\/pre> \n <ul> \n  <li>\u793a\u4f8b 2\uff1a<\/li> \n <\/ul> \n <pre><code class=\"language-shell\">\u8f93\u5165\uff1an = 13\n\u8f93\u51fa\uff1a2\n\u89e3\u91ca\uff1a13 = 4 + 9\n<\/code><\/pre> \n <ul> \n  <li>\u63d0\u793a\uff1a<\/li> \n <\/ul> \n <pre><code class=\"language-shell\">1 &lt;= n &lt;= 104\n<\/code><\/pre> \n <h3 id=\"\u89e3\u9898\u601d\u8def\">\u89e3\u9898\u601d\u8def<\/h3> \n <ul> \n  <li>\u8be5\u9898\u7684\u89e3\u9898\u601d\u8def\u662f\u52a8\u6001\u89c4\u5212\uff0c\u6838\u5fc3\u89e3\u6cd5\u6709\u4e24\u70b9\uff1a<\/li> \n <\/ul> \n <ol> \n  <li>\u6570\u5b57i\uff0c\u53ef\u80fd\u662f\u67d0\u4e2a\u6570\u5b57\u7684\u5e73\u65b9\uff0c\u4f8b\u5982\u6570\u5b579\u662f\u6570\u5b573\u7684\u5e73\u65b9<\/li> \n  <li>\u6570\u5b57i\uff0c\u5982\u679c\u4e0d\u662f\u67d0\u4e2a\u6570\u5b57\u7684\u5e73\u65b9\uff0c\u8be5\u6570\u5b57\u80fd\u7528\u6b64\u8868\u8fbe\u5f0f\u8868\u8fbe\uff1ai = i - j*j + j*j<\/li> \n <\/ol> \n <ul> \n  <li>\u5bf9\u4e8e\u4e0a\u8ff0\u7b2c\u4e8c\u79cd\u60c5\u51b5\uff0c\u5c31\u662f\u52a8\u6001\u89c4\u5212\u72b6\u6001\u8f6c\u79fb\u65b9\u7a0b\u7684\u6838\u5fc3\u5566\uff01<\/li> \n  <li>\u5047\u8bbedp[i]\u7684\u5b9a\u4e49\u662f<font color=\"blue\">\u6570\u5b57i\u7684\u5b8c\u5168\u5e73\u65b9\u6570\u7684\u6700\u5c11\u6570\u91cf<\/font>\uff0c\u90a3\u4e48\u8868\u8fbe\u5f0f<font color=\"blue\">i = i - j*j + j*j<\/font>\u5c31\u5f88\u5bb9\u6613\u7528\u6765\u5206\u6790dp[i]\u4e86<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845205-90444889.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n  <li>\u7b80\u5355\u5730\u8bf4\uff0c\u5c31\u662f\uff1adp[i] = dp[i-j*j] + 1<\/li> \n  <li>\u5f53\u7136\u4e86\uff0c\u4e0a\u8ff0\u53ea\u662f\u6700\u57fa\u672c\u7684\u63a8\u6d4b\uff0c\u4e0d\u4ee3\u8868\u5df2\u7ecf\u89e3\u5b8c\u4e86\uff0c\u8fd8\u5269\u4e00\u4e2a\u91cd\u70b9\uff1aj\u5230\u5e95\u662f\u51e0\uff1f<\/li> \n  <li>\u4ee510\u4e3a\u4f8b\uff0c10=(10-3*3) + 3*3\uff0c\u4f46\u662f\u8fd9\u4e0d\u662f\u552f\u4e00\uff0c\u8fd8\u670910=(10-2*2) + 2*2\uff0c\u6240\u4ee5\u5230\u5e95j\u7b49\u4e8e\u51e0\uff1f\u6839\u636e\u9898\u610f\uff0c\u5e94\u8be5\u662fdp[10-3*3]\u548cdp[10-2*2]\u4e2d\u6700\u5c0f\u7684\u90a3\u4e2a<\/li> \n  <li>\u81f3\u6b64\uff0c\u5206\u6790\u5b8c\u6bd5\uff0c\u53ef\u4ee5\u6109\u5feb\u7684\u5199\u4ee3\u7801\u4e86<\/li> \n <\/ul> \n <h3 id=\"\u7f16\u7801\">\u7f16\u7801<\/h3> \n <ul> \n  <li>\u5b8c\u6574\u6e90\u7801\u5982\u4e0b\u6240\u793a\uff0c\u53ef\u89c1\uff0c\u5bf9\u5e94\u524d\u9762\u5206\u6790\u7684j\u7684\u591a\u79cd\u53ef\u80fd\uff0c\u8981\u53d6\u6700\u5c0f\u503c<\/li> \n <\/ul> \n <pre><code class=\"language-java\">class Solution {\n    public int numSquares(int n) {\n        \/\/ i = i-j*j + j*j  - \u6ce8\u610f\u8fd9\u4e2aj*j\uff0c\u5c31\u662f\u5b8c\u5168\u5e73\u65b9\u6570\u4e2d\u7684\u4e00\u4e2a\n\n        \/\/ dp[i]\u5b9a\u4e49\uff1a\u6570\u5b57i\u7684\u5b8c\u5168\u5e73\u65b9\u6570\n        int[] dp = new int[n+1];\n\n        dp[0] = 1;\n\n        for (int i=1;i&lt;=n;i++) {\n            dp[i] = Integer.MAX_VALUE;\n\n            for(int j=1;j*j&lt;=i;j++) {\n                \/\/ \u5982\u679c\u51fa\u73b0i\u7b49\u4e8e\u67d0\u4e2a\u6570\u5b57\u7684\u5e73\u65b9\uff0c\u90a3\u4e48i\u7684\u5b8c\u5168\u5e73\u65b9\u6570\u5c31\u662f1\n                if (j*j==i) {\n                    dp[i] = 1;\n                    break;\n                }\n\n                \/\/ +1\u7684\u610f\u601d\u5c31\u662fj*j\u8868\u793a\u5b8c\u5168\u5e73\u65b9\u6570\u4e2d\u7684\u4e00\u4e2a\n                dp[i] = Math.min(dp[i-j*j]+1, dp[i]);\n            }\n        }\n\n        return dp[n];\n    }\n}\n<\/code><\/pre> \n <ul> \n  <li>\u7f16\u7801\u5b8c\u6210\u540e\u63d0\u4ea4\uff0c\u987a\u5229AC\uff0c\u53ea\u662f\u6210\u7ee9\u5f88\u4e0d\u7406\u60f3\uff0c\u4ec5\u8d85\u8fc745%\uff0c\u5982\u4e0b\u56fe<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845276-1969350023.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n <\/ul> \n <h3 id=\"\u53cd\u601d\u4e3a\u5565\u6210\u7ee9\u8fd9\u4e48\u5dee\">\u53cd\u601d\uff0c\u4e3a\u5565\u6210\u7ee9\u8fd9\u4e48\u5dee\uff1f<\/h3> \n <ul> \n  <li>\u8fd9\u4e48\u7b80\u5355\u7684\u52a8\u6001\u89c4\u5212\u64cd\u4f5c\uff0c\u4e3a\u4f55\u6210\u7ee9\u8fd9\u4e48\u843d\u540e\uff1f<\/li> \n  <li>\u4e8e\u662f\uff0c\u6211\u60f3\u5230\u4e86\u4e00\u79cd\u53ef\u80fd\uff1a\u8bf4\u4e0d\u5b9a\u53ef\u4ee5\u4f5c\u5f0a...<\/li> \n  <li>\u7406\u7531\u6709\u4e8c<\/li> \n <\/ul> \n <ol> \n  <li>\u9996\u5148\uff0c\u8fd9\u9053\u9898\u7684\u8f93\u5165\u662f\u4e2a\u6570\u5b57\uff0c\u8f93\u51fa\u4e5f\u662f\u4e2a\u6570\u5b57\uff0c\u90a3\u5c31\u5b58\u5728\u63d0\u524d\u7b97\u597d\u7684\u53ef\u80fd\uff0c\u7136\u540e\u6309\u8f93\u5165\u8fd4\u56de\u63d0\u524d\u7b97\u597d\u7684\u8bb0\u8fc7<\/li> \n  <li>\u5176\u6b21\uff0c\u4e5f\u662f\u6700\u5173\u952e\u7684\uff0c\u5c31\u662f\u9898\u76ee\u8981\u6c42\u4e2d\u7684\u90a3\u53e5\u63d0\u793a\uff0c\u5982\u4e0b\u56fe\uff0cn\u5c0f\u4e8e\u7b49\u4e8e\u4e00\u4e07\uff0c\u6240\u4ee5\uff0c\u6211\u53ea\u8981\u5b58\u4e00\u4e07\u4e2a\u6570\u5b57\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u5c31\u884c\u4e86\u5457\uff1a<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845211-652796754.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n <\/ol> \n <ul> \n  <li>\u770b\u5230\u8fd9\u91cc\uff0c\u806a\u660e\u7684\u60a8\u5e94\u8be5\u77e5\u9053\u6211\u8981\u5982\u4f55\u4f5c\u5f0a\u4e86\uff0c\u6ca1\u9519\uff0c\u5c31\u662f\u628a\u6bcf\u4e2a\u6570\u5b57\u7684\u5b8c\u5168\u5e73\u65b9\u6570\u7b97\u51fa\u6765\uff0c\u6539\u52a8\u5982\u4e0b\u56fe<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845343-1768103205.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n  <li>\u7136\u540e\uff0c\u8fd0\u884c\u4e0a\u8ff0\u4ee3\u7801\uff0c\u5165\u53c2\u662f10000\uff0c\u5373\u53ef\u5728\u63a7\u5236\u53f0\u5f97\u5230\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u90a3\u5c31\u662f\u4ece0\u523010000\uff0c\u6bcf\u4e2a\u6570\u5b57\u7684\u5b8c\u5168\u5e73\u65b9\u6570<\/li> \n  <li>\u63a5\u4e0b\u6765\u7684\u8981\u505a\u7684\u5c31\u5f88\u7b80\u5355\u4e86\uff0c\u5982\u4e0b\u6240\u793a\uff0c\u7528\u4e0a\u8ff0\u5b57\u7b26\u4e32\u505a\u6210\u4e00\u4e2aint\u6570\u7ec4array\uff0c\u7136\u540enumSquares\u65b9\u6cd5\u4e2d\u5c31\u4e00\u884c\u4ee3\u7801\uff0c\u8fd4\u56de\u5165\u53c2n\u5bf9\u5e94\u7684\u5b8c\u5168\u5e73\u65b9\u6570\u5c31\u884c\u4e86<\/li> \n <\/ul> \n <pre><code class=\"language-java\">class Solution {\n\t\/\/ \u6570\u7ec4\u7684\u503c\u5c31\u662f\u521a\u624d\u6253\u5370\u51fa\u6765\u7684\u5b57\u7b26\u4e32\uff0c\u592a\u957f\u4e86\uff0c\u5c31\u4e0d\u5b8c\u5168\u8d34\u51fa\u6765\u4e86\n    private int[] array = new int [] {1,1,2,3,1,2,3,4,2,1...};\n    public int numSquares(int n) {\n        return array[n];\n    }\n}\n<\/code><\/pre> \n <ul> \n  <li>\u81f3\u6b64\uff0c\u5c31\u4e00\u884c\u4ee3\u7801\u4e86\uff0c\u76f8\u4fe1\u6210\u7ee9\u4e0d\u4f1a\u5dee\u4e86\u5427\uff0c\u8fd0\u884c\u4e00\u4e0b\u8bd5\u8bd5\uff0c\u5982\u4e0b\u56fe\uff0c\u5927\u8dcc\u773c\u955c\u4e86\uff0c\u4e00\u884c\u4ee3\u7801\u4e5f\u898145ms\uff0c\u4ece\u4e4b\u524d\u7684\u8d85\u8fc745%\u8dcc\u843d\u5230\u8d85\u8fc722%<\/li> \n <\/ul> \n <p><img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845319-1455183290.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/p> \n <ul> \n  <li>\u7a81\u5982\u5176\u6765\u7684\u4e22\u8138...<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845228-19138675.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n  <li>\u597d\u5427\uff0c\u8ba9\u6211\u5bf9\u7740\u8fd9\u4e00\u884c\u4ee3\u7801\u634b\u634b\uff0c\u4ee3\u7801\u592a\u5c11\u4e86\uff0c\u5f88\u5bb9\u6613\u634b\u6e05\u695a\uff0c\u5982\u4e0b\u56fe<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845275-805883601.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n  <li>\u627e\u5230\u4e86\u95ee\u9898\uff0c\u6539\u8d77\u6765\u4e5f\u5c31\u5f88\u5bb9\u6613\u4e86\uff0c\u5982\u4e0b\u56fe\u9ec4\u6846\u6240\u793a\uff0c\u8fd9\u4e00\u4e0b\uff0carray\u6570\u7ec4\u5728\u7f16\u8bd1\u6210class\u6587\u4ef6\u7684\u65f6\u5019\u88ab\u4e22\u8fdb\u4e86\u5e38\u91cf\u533a\uff0c\u6bcf\u6b21\u521b\u5efaSolution\u5b9e\u4f8b\u7684\u65f6\u5019\uff0c\u4e0d\u4f1a\u518d\u53bb\u521b\u5efaarray\u5bf9\u8c61\u4e86<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845364-1219235152.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n  <li>\u518d\u6b21\u63d0\u4ea4\uff0c\u8fd9\u4e00\u56de\uff0c\u4f5c\u5f0a\u6210\u529f\uff0c\u7528\u65f6\u548c\u5185\u5b58\u6d88\u8017\u53cc\u53cc\u8d85\u8fc7\u767e\u5206\u4e4b\u4e5d\u5341\u4e03<br \/> <img src=\"https:\/\/img2023.cnblogs.com\/blog\/485422\/202309\/485422-20230902120845238-1915369241.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" loading=\"lazy\" \/><\/li> \n  <li>\u603b\u7684\u6765\u8bf4\uff0c\u52a8\u6001\u89c4\u5212\u662f\u6b63\u89e3\uff0c\u5982\u679c\u6761\u4ef6\u5141\u8bb8\uff0c\u4e5f\u80fd\u7528\u6b6a\u95e8\u90aa\u9053\u4f5c\u5f0a\u8bd5\u8bd5\uff0c\u53ef\u4ee5\u5f00\u9614\u601d\u8def\uff0c\u540c\u65f6\u53d6\u5f97\u597d\u6210\u7ee9\uff0c\u4ee4\u4eba\u8eab\u5fc3\u6109\u60a6<\/li> \n <\/ul> \n <h3 id=\"\u6b22\u8fce\u5173\u6ce8\u535a\u5ba2\u56ed\u7a0b\u5e8f\u5458\u6b23\u5bb8\">\u6b22\u8fce\u5173\u6ce8\u535a\u5ba2\u56ed\uff1a\u7a0b\u5e8f\u5458\u6b23\u5bb8<\/h3> \n <blockquote> \n  <p><a target=\"_blank\" rel=\"noopener\">\u5b66\u4e60\u8def\u4e0a\uff0c\u4f60\u4e0d\u5b64\u5355\uff0c\u6b23\u5bb8\u539f\u521b\u4e00\u8def\u76f8\u4f34...<\/a><\/p> \n <\/blockquote> \n<\/div>","orderid":"0","title":"LeetCode279:\u5b8c\u5168\u5e73\u65b9\u6570\uff0c\u52a8\u6001\u89c4\u5212\u89e3\u6cd5\u8d85\u8fc746%\uff0c\u4f5c\u5f0a\u89e3\u6cd5\u5374\u8d85\u8fc797%","smalltitle":"","mid":"0","fname":"JAVA","special_id":"0","bak_id":"0","info":"0","hits":"263","pages":"1","comments":"0","posttime":"2023-09-23 15:44:46","list":"1695455086","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"<A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=LeetCode279%3A' target=_blank>LeetCode279:<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%C8%AB%C6%BD%B7%BD' target=_blank>\u5168\u5e73\u65b9<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%BD%E2%B7%A8%B3%AC' target=_blank>\u89e3\u6cd5\u8d85<\/A> <A 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