{"id":126347,"date":"2020-01-19T04:37:17","date_gmt":"2020-01-18T20:37:17","guid":{"rendered":"http:\/\/4563.org\/?p=126347"},"modified":"2020-01-19T04:37:17","modified_gmt":"2020-01-18T20:37:17","slug":"leetcode-lintcode-%e9%a2%98%e8%a7%a3-%e5%be%ae%e8%bd%af%e9%9d%a2%e8%af%95%e9%a2%98%ef%bc%9a%e6%8b%bf%e8%b5%b0%e7%93%b6%e5%ad%90","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=126347","title":{"rendered":"[leetcode\/lintcode \u9898\u89e3] \u5fae\u8f6f\u9762\u8bd5\u9898\uff1a\u62ff\u8d70\u74f6\u5b50"},"content":{"rendered":"
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[leetcode\/lintcode \u9898\u89e3] \u5fae\u8f6f\u9762\u8bd5\u9898\uff1a\u62ff\u8d70\u74f6\u5b50 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : hakunamatata11 <\/span> <\/i> 11<\/span> <\/div>\n
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[\u9898\u76ee\u63cf\u8ff0] \u6709 n \u4e2a\u74f6\u5b50\u6392\u6210\u4e00\u5217\uff0c\u7528 arr \u8868\u793a\u3002\u4f60\u6bcf\u6b21\u53ef\u4ee5\u9009\u62e9\u80fd\u591f\u5f62\u6210\u56de\u6587\u8fde\u7eed\u5b50\u4e32\u7684\u74f6\u5b50\u62ff\u8d70\uff0c\u5269\u4e0b\u7684\u74f6\u5b50\u62fc\u63a5\u5728\u4e00\u8d77\u3002\u8fd4\u56de\u4f60\u80fd\u62ff\u8d70\u6240\u6709\u7684\u74f6\u5b50\u7684\u6700\u5c0f\u6b21\u6570\u3002 n<=500 arr[i]<=1000<\/p>\n

\u5728\u7ebf\u8bc4\u6d4b\u5730\u5740\uff1ahttps:\/\/www.lintcode.com\/problem\/take-away-the-bottle\/?utm_source=sc-v2ex-fks<\/p>\n

\u6837\u4f8b \u4f8b 1:<\/p>\n

\u8f93\u5165\uff1a[1,3,4,1,5]  \u8f93\u51fa\uff1a3  \u8bf4\u660e\uff1a\u7b2c\u4e00\u6b21\u5148\u62ff\u8d70[4]\uff0c\u5269\u4f59[1,3,1,5] \u7b2c\u4e8c\u6b21\u62ff\u8d70[1,3,1]\uff0c\u5269\u4f59[5] \u7b2c\u4e09\u6b21\u62ff\u8d70[5] <\/code><\/pre>\n
\u4f8b 2:<\/p>\n
\u8f93\u5165\uff1a[1,2,3,5,3,1] \u8f93\u51fa\uff1a2 <\/code><\/pre>\n
[\u9898\u89e3] \u5229\u7528\u533a\u95f4 dp \u89e3\u51b3\u3002dpi \u4ee3\u8868\u4ece\u7b2c i \u4f4d\u5230\u7b2c j \u4f4d\u6700\u5c11\u88ab\u6d88\u9664\u7684\u6b21\u6570\u3002\u7136\u540e\u6211\u4eec\u5728\u6b64\u57fa\u7840\u4e4b\u4e0a\u5411\u5916\u5ef6\u7533\u3002 \u5bf9\u4e8e i \u5230 j \u7684\u533a\u95f4\uff0c\u4ed6\u7684\u7b54\u6848\u53ef\u80fd\u7531 i \u5230 k \u548c k+1 \u5230 j \u8fd9\u4e24\u4e2a\u533a\u95f4\u7684\u548c\uff0c\u4e5f\u5c31\u662f dpi = min(dpi, dpi + dpk + 1) \u8fd9\u53ea\u662f\u5176\u4e2d\u4e00\u79cd\u53ef\u80fd\u6027\u3002<\/p>\n
\u63a5\u7740\u6211\u4eec\u8003\u8651\u53e6\u4e00\u79cd\u3002\u5f53 arri=arrj \u65f6\uff0cdpi = dpi + 1 \u610f\u4e49\u662f\uff0c\u82e5\u5f53\u524d\u533a\u95f4\u7684\u524d\u4e00\u4e2a\u548c\u540e\u4e00\u4e2a\u6570\u521a\u597d\u76f8\u7b49\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6570\u53ef\u4ee5\u76f4\u63a5\u8ddf\u968f\u7740\u5f53\u524d\u533a\u95f4\u7684\u6700\u540e\u4e00\u6b21\u5220\u9664\u4e00\u8d77\u5220\u9664\uff08\u6211\u4eec\u65e0\u9700\u8003\u8651\u533a\u95f4\u5185\u90e8\u5230\u5e95\u662f\u505a\u4ec0\u4e48\u5220\u9664\u7684\uff0c\u53ea\u8981\u77e5\u9053\u5728\u6700\u540e\u4e00\u6b21\u5220\u9664\u524d\uff0c\u8fd9\u4e2a\u533a\u95f4\u5269\u4f59\u7684\u548c\u524d\u540e\u4e00\u5b9a\u80fd\u7ec4\u6210\u65b0\u7684\u56de\u6587\u5b50\u4e32\uff09<\/p>\n
public class Solution {     \/**      * @param arr: the array of bottles      * @return: the minimum number of times you can take all the bottles      *\/     int[][] dp = new int[550][550];     public int takeAwayTheBottle(int[] arr) {         \/\/ Write your code here.         int i, j, k, l;         int n = arr.length;         for (i = 0; i < n; i++) {             for (j = 0; j < n; j++) dp[i][j] = n;         }          for (i = 0; i < n; i++) {             dp[i][i] = 1;         }         for (i = 0; i + 1 < n; i++) {             if (arr[i] == arr[i + 1]) dp[i][i + 1] = 1;             else dp[i][i + 1] = 2;         }         for (l = 2; l < n; l++) {             for (i = 0; i + l < n; i++) {                 j = i + l;                 if (arr[i] == arr[j]) {                     dp[i][j] = dp[i + 1][j - 1];                 }                 for (k = i; k < j; k++) {                     dp[i][j] = Math.min(dp[i][j], dp[i][k] + dp[k + 1][j]);                 }             }         }         return dp[0][n - 1];     } } <\/code><\/pre>\n
\u66f4\u591a\u8bed\u8a00\u4ee3\u7801\u53c2\u89c1\uff1ahttps:\/\/www.jiuzhang.com\/solution\/take-away-the-bottle\/?utm_source=sc-v2ex-fks<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (0<\/span>)        <\/div>\n
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    [leetcode\/lintcod…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/126347"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=126347"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/126347\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=126347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=126347"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=126347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}