{"id":22021,"date":"2022-01-04T10:30:14","date_gmt":"2022-01-04T02:30:14","guid":{"rendered":"https:\/\/www.paiqinano.com\/?p=22021"},"modified":"2021-12-29T17:22:52","modified_gmt":"2021-12-29T09:22:52","slug":"%e6%b5%85%e8%b0%88%e7%94%b5%e8%b7%af%e5%b8%83%e7%ba%bf%e7%94%b5%e8%b7%af%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"https:\/\/www.paiqinano.com\/?p=22021","title":{"rendered":"\u6d45\u8c08\u7535\u8def\u5e03\u7ebf\u7535\u8def\u8bbe\u8ba1"},"content":{"rendered":"

\u300a\u7b97\u6cd5\u8bbe\u8ba1\u4e0e\u5206\u6790\u300b –\u738b\u6653\u4e1c<\/p>\n

\u9898\u578b\u53d9\u8ff0\uff1a<\/p>\n

\u5728\u4e00\u5757\u7ebf\u8def\u677f<\/u>\u7684\u4e0a\u3001\u4e0b2\u7aef\u5404\u81ea\u6709n\u4e2a\u63a5\u7ebf\u5934\u3002\u4f9d\u636e\u7535\u6e90\u7535\u8def<\/u>\u8bbe\u8ba1\u65b9\u6848\uff0c\u89c4\u5b9a\u7528\u8f93\u7535\u7ebf\uff08i\uff0ca\uff08i\uff09\uff09\u5c06\u4e0a\u65b9\u63a5\u7ebf\u5934\u4e0e\u4e0b\u65b9\u63a5\u7ebf\u5934\u76f8\u63a5\uff0c\u5728\u5176\u4e2da\uff08i\uff09\u8868\u660e\u4e0a\u8282\u70b9i\u76f8\u5339\u914d\u7684\u5411\u8282\u70b9\u7684\u503c\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n

<\/p>\n

\u9898\u578b\u89c4\u5b9a\u662f\u5728\u7ed9\u51fa\u7684\u8fde\u7ebf\u4e2d\uff0c\u9009\u62e9\u4e0d\u4ea4\u70b9\u8fde\u7ebf\u7684\u8f83\u5927\u975e\u7a7a\u5b50\u96c6\uff0c\u5373\u4e0d\u4ea4\u70b9\u8fde\u7ebf\u7684\u8f83\u5927\u6570\u989d\u3002\u5e76\u628a\u8f83\u5927\u4e0d\u4ea4\u70b9\u975e\u7a7a\u5b50\u96c6\u7684\u72b6\u51b5\u7ed9\u4f8b\u4e3e\u89e3\u51b3\u554a\u3002<\/p>\n

\u89e3\u9898\u601d\u8def\uff1a<\/p>\n

\u6700\u5148\u7528a\uff3bi\uff3d\u4e8c\u7ef4\u6570\u7ec4\u8868\u660e\u4e0e\u4e0a\u8fb9\u5bf9\u5e94\u7684\u70b9\u76f8\u63a5\u7ebf\u7684\u4e0b\u8fb9\u7684\u70b9\uff0c\u518d\u7528set\uff3bi\uff3d\uff3bj\uff3d\u8868\u660e\u4e0a\u8fb9\u8fde\u63a5\u70b9i\u4e0e\u4e0b\u8fb9\u8fde\u63a5\u70b9j\u8fde\u7ebf\u7684\u5de6\u4fa7\uff08\u5305\u542bi j\u8fde\u7ebf\uff09\u7684\u6700\u9ad8\u4e0d\u4ea4\u70b9\u8fde\u7ebf\u7684\u6570\u91cf\u3002<\/p>\n

\u56e0\u6b64\u5c31\u4f1a\u6709\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n

max\uff08set\uff3bi-1\uff3d\uff3bj\uff3d\uff0c set\uff3bi\uff3d\uff3bj-1\uff3d\uff09; j \uff01= a\uff3bi\uff3d<\/p>\n

set\uff08i\uff0cj\uff09 =<\/p>\n

set\uff3bi-1\uff3d\uff3bj-1\uff3d 1; j == a\uff3bi\uff3d<\/p>\n

\u968f\u540e\u5c31\u53ef\u4ee5\u5bf9\u6bcf\u4e00\u4e2ai\uff0c\u90fd\u5bf9\u56e0\u6b64\u7684j\u6c42\u4e00\u904d\u3002\u90a3\u6837\u5c31\u53ef\u4ee5\u5f97\u5230\u7d50\u679c\u5417\uff0cset\uff3bn\uff3d\uff3bn\uff3d\u5373\u5927\u5bb6\u9700\u8981\u7684\u7d50\u679c\u3002<\/p>\n

\u6700\u7ec8\u6839\u636e\u56de\u6714\u628a\u6570\u636e\u5bfc\u51fa\u51fa\u53bb\u3002<\/p>\n

\u7f16\u7801\u5b8c\u6210\uff1a<\/p>\n

#include \u300astdio.h\u300b<\/p>\n

#define MAX\uff08a\uff0cb\uff09 \uff08\uff08a\uff09 \u300b \uff08b\uff09 \uff1f \uff08a\uff09 \uff1a \uff08b\uff09\uff09<\/p>\n

void circut\uff08int a\uff3b\uff3d\uff0cint set\uff3b\uff3d\uff3b11\uff3d\uff0cint n\uff09;<\/p>\n

void back_track\uff08int i\uff0cint j\uff0cint set\uff3b\uff3d\uff3b11\uff3d\uff09;<\/p>\n

int main\uff08\uff09<\/p>\n

{<\/p>\n

int a\uff3b\uff3d = {0\uff0c8\uff0c7\uff0c4\uff0c2\uff0c5\uff0c1\uff0c9\uff0c3\uff0c10\uff0c6};<\/p>\n

int set\uff3b11\uff3d\uff3b11\uff3d;<\/p>\n

circut\uff08a\uff0cset\uff0c10\uff09;<\/p>\n

printf\uff08\u201cmax set\uff1a %d \\\\n\u201d\uff0cset\uff3b10\uff3d\uff3b10\uff3d\uff09;<\/p>\n

back_track\uff0810\uff0c10\uff0cset\uff09;<\/p>\n

printf\uff08\u201c\\\\n\u201d\uff09;<\/p>\n

return 0;<\/p>\n

}<\/p>\n

void circut\uff08int a\uff3b\uff3d\uff0cint set\uff3b\uff3d\uff3b11\uff3d\uff0cint n\uff09<\/p>\n

{<\/p>\n

int i\uff0cj;<\/p>\n

for \uff08i = 0; i \u300a n; i \uff09<\/p>\n

{<\/p>\n

set\uff3bi\uff3d\uff3b0\uff3d = 0;<\/p>\n

set\uff3b0\uff3d\uff3bi\uff3d = 0;<\/p>\n

}<\/p>\n

for \uff08i = 1; i \u300a= n; i \uff09<\/p>\n

{<\/p>\n

for \uff08j = 1; j \u300a= n; j \uff09<\/p>\n

{<\/p>\n

if<\/u> \uff08a\uff3bi\uff3d \uff01= j\uff09<\/p>\n

set\uff3bi\uff3d\uff3bj\uff3d = MAX\uff08set\uff3bi-1\uff3d\uff3bj\uff3d\uff0cset\uff3bi\uff3d\uff3bj-1\uff3d\uff09;<\/p>\n

else<\/p>\n

set\uff3bi\uff3d\uff3bj\uff3d = set\uff3bi-1\uff3d\uff3bj-1\uff3d 1;<\/p>\n

}<\/p>\n

}<\/p>\n

}<\/p>\n

void back_track\uff08int i\uff0cint j\uff0cint set\uff3b\uff3d\uff3b11\uff3d\uff09<\/p>\n

{<\/p>\n

if \uff08i == 0\uff09<\/p>\n

return;<\/p>\n

if \uff08set\uff3bi\uff3d\uff3bj\uff3d == set\uff3bi-1\uff3d\uff3bj\uff3d\uff09<\/p>\n

back_track\uff08i-1\uff0cj\uff0cset\uff09;<\/p>\n

else if \uff08set\uff3bi\uff3d\uff3bj\uff3d == set\uff3bi\uff3d\uff3bj-1\uff3d\uff09<\/p>\n

back_track\uff08i\uff0cj-1\uff0cset\uff09;<\/p>\n

else<\/p>\n

{<\/p>\n

back_track\uff08i-1\uff0cj-1\uff0cset\uff09;<\/p>\n

printf\uff08\u201c\uff08%d\uff0c%d\uff09 \u201d\uff0ci\uff0cj\uff09;<\/p>\n

}<\/p>\n

}<\/p>\n

 <\/p>\n

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