{"id":2646,"date":"2022-04-08T11:18:21","date_gmt":"2022-04-08T03:18:21","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2646"},"modified":"2022-04-08T11:18:37","modified_gmt":"2022-04-08T03:18:37","slug":"%e7%ae%97%e6%b3%95%e5%85%a5%e9%97%a8%e7%ac%ac14%e5%a4%a9","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2646","title":{"rendered":"\u7b97\u6cd5\u5165\u95e8\u7b2c14\u5929"},"content":{"rendered":"\n

190. \u98a0\u5012\u4e8c\u8fdb\u5236\u4f4d<\/a><\/p>\n\n\n\n

\u8fd9\u4e00\u9898\u7528\u5230\u7684\u7a0d\u5fae\u591a\u70b9<\/p>\n\n\n\n

\/**\n<\/em> 190. \u98a0\u5012\u4e8c\u8fdb\u5236\u4f4d\n<\/em> \u98a0\u5012\u7ed9\u5b9a\u7684 32 \u4f4d\u65e0\u7b26\u53f7\u6574\u6570\u7684\u4e8c\u8fdb\u5236\u4f4d\u3002\n<\/em>\n<\/em> \u63d0\u793a\uff1a\n<\/em>\n<\/em> \u8bf7\u6ce8\u610f\uff0c\u5728\u67d0\u4e9b\u8bed\u8a00\uff08\u5982 Java\uff09\u4e2d\uff0c\u6ca1\u6709\u65e0\u7b26\u53f7\u6574\u6570\u7c7b\u578b\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8f93\u5165\u548c\u8f93\u51fa\u90fd\u5c06\u88ab\u6307\u5b9a\u4e3a\u6709\u7b26\u53f7\u6574\u6570\u7c7b\u578b\uff0c\u5e76\u4e14\u4e0d\u5e94\u5f71\u54cd\u60a8\u7684\u5b9e\u73b0\uff0c\u56e0\u4e3a\u65e0\u8bba\u6574\u6570\u662f\u6709\u7b26\u53f7\u7684\u8fd8\u662f\u65e0\u7b26\u53f7\u7684\uff0c\u5176\u5185\u90e8\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u5f62\u5f0f\u90fd\u662f\u76f8\u540c\u7684\u3002\n<\/em> \u5728 Java \u4e2d\uff0c\u7f16\u8bd1\u5668\u4f7f\u7528\u4e8c\u8fdb\u5236\u8865\u7801\u8bb0\u6cd5\u6765\u8868\u793a\u6709\u7b26\u53f7\u6574\u6570\u3002\u56e0\u6b64\uff0c\u5728 \u793a\u4f8b 2 \u4e2d\uff0c\u8f93\u5165\u8868\u793a\u6709\u7b26\u53f7\u6574\u6570 -3\uff0c\u8f93\u51fa\u8868\u793a\u6709\u7b26\u53f7\u6574\u6570 -1073741825\u3002\n<\/em>\n<\/em>\n<\/em> \u793a\u4f8b 1\uff1a\n<\/em>\n<\/em> \u8f93\u5165\uff1an = 00000010100101000001111010011100\n<\/em> \u8f93\u51fa\uff1a964176192 (00111001011110000010100101000000)\n<\/em> \u89e3\u91ca\uff1a\u8f93\u5165\u7684\u4e8c\u8fdb\u5236\u4e32 00000010100101000001111010011100 \u8868\u793a\u65e0\u7b26\u53f7\u6574\u6570 43261596\uff0c\n<\/em> \u56e0\u6b64\u8fd4\u56de 964176192\uff0c\u5176\u4e8c\u8fdb\u5236\u8868\u793a\u5f62\u5f0f\u4e3a 00111001011110000010100101000000\u3002\n<\/em> \u793a\u4f8b 2\uff1a\n<\/em>\n<\/em> \u8f93\u5165\uff1an = 11111111111111111111111111111101\n<\/em> \u8f93\u51fa\uff1a3221225471 (10111111111111111111111111111111)\n<\/em> \u89e3\u91ca\uff1a\u8f93\u5165\u7684\u4e8c\u8fdb\u5236\u4e32 11111111111111111111111111111101 \u8868\u793a\u65e0\u7b26\u53f7\u6574\u6570 4294967293\uff0c\n<\/em> \u56e0\u6b64\u8fd4\u56de 3221225471 \u5176\u4e8c\u8fdb\u5236\u8868\u793a\u5f62\u5f0f\u4e3a 10111111111111111111111111111111 \u3002\n<\/em>\n<\/em>\n<\/em> \u63d0\u793a\uff1a\n<\/em>\n<\/em> \u8f93\u5165\u662f\u4e00\u4e2a\u957f\u5ea6\u4e3a 32 \u7684\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\n<\/em>\n<\/em>\n<\/em> * <\/em>@author <\/em><\/strong>zeroheart\n<\/em> * <\/em>@since <\/em><\/strong>2022\/4\/4\n<\/em> *\/\n<\/em>public class Question190 {\n    \/\/ you need treat n as an unsigned value\n    public int reverseBits(int n) {\n        int bits = 32;\n        int res = 0;\n        while(bits>0){\n            int lastbit = n & 1; \/\/ \u83b7\u53d6\u6700\u540e\u4e00\u4f4d\uff0c0 \u6216\u8005 1\n            res = res << 1;\/\/ \u589e\u52a0\u4e00\u4f4d0\n            res = res | lastbit; \/\/ \u6dfb\u52a0\u8fdb\u53bb\n            n = n>>1;\/\/ \u53bb\u6389\u521a\u7528\u6389\u7684\u4e00\u4f4d\n            bits--;\n        }\n        return res;\n    }\n\n    public static void main(String[] args) {\n    }\n\n\n}<\/pre>\n\n\n\n
136. \u53ea\u51fa\u73b0\u4e00\u6b21\u7684\u6570\u5b57<\/a><\/p>\n\n\n\n
\u8fd9\u9898\u4f7f\u7528\u4f4d\u8fd0\u7b97\uff0c\u5f02\u6216\uff0c\u6ce8\u610f\u5f02\u6216\u7684\u4e00\u4e9b\u7279\u6027<\/p>\n\n\n\n
1.\u4ea4\u6362\u5f8b\uff1aa ^ b ^ c <=> a ^ c ^ b * * \n2.\u4efb\u4f55\u6570\u4e8e0\u5f02\u6216\u4e3a\u4efb\u4f55\u6570 0 ^ n => n * * \n3.\u76f8\u540c\u7684\u6570\u5f02\u6216\u4e3a0: n ^ n => 0 * * \n\nvar a = [2,3,2,4,4] * * 2 ^ 3 ^ 2 ^ 4 ^ 4\u7b49\u4ef7\u4e8e 2 ^ 2 ^ 4 ^ 4 ^ 3 => 0 ^ 0 ^3 => 3<\/mark><\/pre>\n\n\n\n
\/**
<\/em> 136. \u53ea\u51fa\u73b0\u4e00\u6b21\u7684\u6570\u5b57
<\/em> \u7ed9\u5b9a\u4e00\u4e2a\u975e\u7a7a\u6574\u6570\u6570\u7ec4\uff0c\u9664\u4e86\u67d0\u4e2a\u5143\u7d20\u53ea\u51fa\u73b0\u4e00\u6b21\u4ee5\u5916\uff0c\u5176\u4f59\u6bcf\u4e2a\u5143\u7d20\u5747\u51fa\u73b0\u4e24\u6b21\u3002\u627e\u51fa\u90a3\u4e2a\u53ea\u51fa\u73b0\u4e86\u4e00\u6b21\u7684\u5143\u7d20\u3002
<\/em>
<\/em> \u8bf4\u660e\uff1a
<\/em>
<\/em> \u4f60\u7684\u7b97\u6cd5\u5e94\u8be5\u5177\u6709\u7ebf\u6027\u65f6\u95f4\u590d\u6742\u5ea6\u3002 \u4f60\u53ef\u4ee5\u4e0d\u4f7f\u7528\u989d\u5916\u7a7a\u95f4\u6765\u5b9e\u73b0\u5417\uff1f
<\/em>
<\/em> \u793a\u4f8b 1:
<\/em>
<\/em> \u8f93\u5165: [2,2,1]
<\/em> \u8f93\u51fa: 1
<\/em> \u793a\u4f8b 2:
<\/em>
<\/em> \u8f93\u5165: [4,1,2,1,2]
<\/em> \u8f93\u51fa: 4
<\/em>
<\/em>
<\/em> * <\/em>@author <\/em><\/strong>zeroheart
<\/em> * <\/em>@since <\/em><\/strong>2022\/4\/4
<\/em> *\/
<\/em>public class Question136 {
    public int singleNumber(int[] nums) {
        \/**
<\/em>         *         \u4ea4\u6362\u5f8b\uff1aa ^ b ^ c <=> a ^ c ^ b
<\/em>         *
<\/em>         *         \u4efb\u4f55\u6570\u4e8e0\u5f02\u6216\u4e3a\u4efb\u4f55\u6570 0 ^ n => n
<\/em>         *
<\/em>         *         \u76f8\u540c\u7684\u6570\u5f02\u6216\u4e3a0: n ^ n => 0
<\/em>         *
<\/em>         *         var a = [2,3,2,4,4]
<\/em>         *
<\/em>         *         2 ^ 3 ^ 2 ^ 4 ^ 4\u7b49\u4ef7\u4e8e 2 ^ 2 ^ 4 ^ 4 ^ 3 => 0 ^ 0 ^3 => 3
<\/em>         *\/
<\/em>
<\/em>        <\/em>int len = nums.length;
        int res = 0;
        while (len>0){
            res = nums[len-1] ^ res;
            len--;
        }
        return res;
    }

    public static void main(String[] args) {
    }


}<\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
190. \u98a0\u5012\u4e8c\u8fdb\u5236\u4f4d \u8fd9\u4e00\u9898\u7528\u5230\u7684\u7a0d\u5fae\u591a\u70b9 \/** 190. \u98a0\u5012\u4e8c\u8fdb\u5236\u4f4d \u98a0\u5012\u7ed9\u5b9a\u7684 32 \u4f4d\u65e0\u7b26\u53f7\u6574\u6570\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[155],"tags":[193],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2646"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2646"}],"version-history":[{"count":10,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2646\/revisions"}],"predecessor-version":[{"id":2656,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2646\/revisions\/2656"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}