\u4e0d\u76f8\u4ea4\u8def\u5f84<\/p>\n
Time Limit:10000MS Memory Limit:65536K
Total Submit:40 Accepted:14
Case Time Limit:1000MS<\/p>\n
Description <\/strong><\/p>\n \u7ed9\u51fa\u4e00\u4e2aN(n<=150)\u4e2a\u7ed3\u70b9\u7684\u6709\u5411\u65e0\u73af\u7b80\u5355\u56fe\u3002\u7ed9\u51fa4\u4e2a\u4e0d\u540c\u7684\u70b9a,b,c,d\uff0c\u5b9a\u4e49\u4e0d\u76f8\u4ea4\u8def\u5f84\u4e3a\u4e24\u6761\u8def\u5f84\uff0c\u4e24\u6761\u8def\u5f84\u7684\u8d77\u70b9\u5206\u522b\u4e3aa \u548cc\uff0c\u5bf9\u5e94\u7684\u4e24\u6761\u8def\u5f84\u7684\u7ec8\u70b9\u4e3ab\u548cd\uff0c\u8981\u6c42\u6ee1\u8db3\u8fd9\u4e24\u6761\u8def\u5f84\u4e0d\u76f8\u4ea4\uff0c\u5373\u4e24\u6761\u8def\u5f84\u4e0a\u6ca1\u6709\u516c\u5171\u7684\u70b9\u3002 Input <\/strong><\/p>\n \u7b2c\u4e00\u884c\u4e3aN\uff0cM\u3002\u8868\u793a\u8fd9\u4e2a\u6709\u5411\u65e0\u73af\u56fe\u6709N\u4e2a\u8282\u70b9\uff0cM\u6761\u8fb9\u3002 Output <\/strong><\/p>\n \u8f93\u51fa\u4e3a\u4e00\u884c\uff0c\u5373\u7b54\u6848\uff08\u65b9\u6848\u6570\uff09\u3002 <\/p>\n Sample Input <\/strong><\/p>\n 5 6 Sample Output <\/strong><\/p>\n 3<\/p>\n Source \u4e0d\u76f8\u4ea4\u8def\u5f84 Time Limit:10000MS Memory Limit:65536KTotal Submit:40 Accepted:14 Case Time Limit:1000MS Description \u7ed9\u51fa\u4e00\u4e2aN(n<=150)\u4e2a\u7ed3\u70b9\u7684\u6709\u5411\u65e0\u73af\u7b80\u5355\u56fe\u3002\u7ed9\u51fa4\u4e2a\u4e0d\u540c\u7684\u70b9a,b,c,d\uff0c\u5b9a\u4e49\u4e0d\u76f8\u4ea4\u8def\u5f84\u4e3a\u4e24\u6761\u8def\u5f84\uff0c\u4e24\u6761\u8def\u5f84\u7684\u8d77\u70b9\u5206\u522b\u4e3aa \u548cc\uff0c\u5bf9\u5e94\u7684\u4e24\u6761\u8def\u5f84\u7684\u7ec8\u70b9\u4e3ab\u548cd\uff0c\u8981\u6c42\u6ee1\u8db3\u8fd9\u4e24\u6761\u8def\u5f84\u4e0d\u76f8\u4ea4\uff0c\u5373\u4e24\u6761\u8def\u5f84\u4e0a\u6ca1\u6709\u516c\u5171\u7684\u70b9\u3002 \u73b0\u5728\u8981\u6c42\u4e0d\u76f8\u4ea4\u8def\u5f84\u7684\u65b9\u6848\u6570\u3002 Input \u7b2c\u4e00\u884c\u4e3aN\uff0cM\u3002\u8868\u793a\u8fd9\u4e2a\u6709\u5411\u65e0\u73af\u56fe\u6709N\u4e2a\u8282\u70b9\uff0cM\u6761\u8fb9\u3002 \u63a5\u4e0b\u6765M\u884c\uff0c\u6bcf\u884c\u4e24\u4e2a\u6574\u6570x,y\u3002\u8868\u793ax\u81f3y\u6709\u4e00\u6761\u6709\u5411\u8fb9\u3002 \u63a5\u4e0b\u6765\u4e00\u884c\u56db\u4e2a\u6570a,b,c,d\uff0c\u610f\u4e49\u5982\u9898\u4e2d\u6240\u8ff0\u3002 Output \u8f93\u51fa\u4e3a\u4e00\u884c\uff0c\u5373\u7b54\u6848\uff08\u65b9\u6848\u6570\uff09\u3002 Sample Input 5 61 51 32 52 45 35 41 3 2 4 Sample Output 3 Source\u6211\u770b\u5230\u8fd9\u4e2a\u9898\u76ee\u4e4b\u540e\u3002\u3002\u7b2c\u4e00\u611f\u89c9\u5c31\u662f\u9700\u8981\u9ad8\u7cbe\u3002\u3002\u7136\u540e\u611f\u89c9\u6b63\u96be\u5219\u53cd\u561b\u3002\u3002\u6240\u4ee5\u53ef\u4ee5\u7528\u8865\u96c6\u8f6c\u5316\u3002\u3002\u9996\u5148\u62d3\u6251\u6392\u5e8f\u4e00\u4e0b\u3002\u3002\u7136\u540e\u8bbeG[s][t]\u4e3as\u5230t\u7684\u8def\u5f84\u6761\u6570\u3002\u3002\u968f\u4fbfDp\u4e00\u4e0b\u5c31\u51fa\u6765\u4e86\u3002\u3002\u7136\u540e\u8bbeF[t]\u4e3as1->t,s2->t\u4e4b\u524d\u4e0d\u76f8\u4ea4\u7684\u8def\u5f84\u5bf9\u6570\u3002\u3002\u663e\u7136\u679a\u4e3e\u4e00\u4e0b\u5728\u524d\u9762\u76f8\u4ea4\u7684\uff0c\u51cf\u6389\u5373\u53ef\u3002\u3002F[t]=G[s1][t]*G[s2][t]-Sum{F[k]*G[k][t]^2}..\u7136\u540e\u5c31\u5dee\u4e0d\u591aOK\u4e86\u3002\u3002Ans=G[s1][t1]*G[s2][t2]-Sum{F[k]*G[k][t1]*G[k][t2]}\u3002\u3002\u5c31OK\u4e86\u3002\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/340"}],"collection":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=340"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/340\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u73b0\u5728\u8981\u6c42\u4e0d\u76f8\u4ea4\u8def\u5f84\u7684\u65b9\u6848\u6570\u3002 <\/p>\n
\u63a5\u4e0b\u6765M\u884c\uff0c\u6bcf\u884c\u4e24\u4e2a\u6574\u6570x,y\u3002\u8868\u793ax\u81f3y\u6709\u4e00\u6761\u6709\u5411\u8fb9\u3002
\u63a5\u4e0b\u6765\u4e00\u884c\u56db\u4e2a\u6570a,b,c,d\uff0c\u610f\u4e49\u5982\u9898\u4e2d\u6240\u8ff0\u3002 <\/p>\n
1 5
1 3
2 5
2 4
5 3
5 4
1 3 2 4<\/p>\n
\u6211\u770b\u5230\u8fd9\u4e2a\u9898\u76ee\u4e4b\u540e\u3002\u3002\u7b2c\u4e00\u611f\u89c9\u5c31\u662f\u9700\u8981\u9ad8\u7cbe\u3002\u3002
\u7136\u540e\u611f\u89c9\u6b63\u96be\u5219\u53cd\u561b\u3002\u3002\u6240\u4ee5\u53ef\u4ee5\u7528\u8865\u96c6\u8f6c\u5316\u3002\u3002
\u9996\u5148\u62d3\u6251\u6392\u5e8f\u4e00\u4e0b\u3002\u3002
\u7136\u540e\u8bbeG[s][t]\u4e3as\u5230t\u7684\u8def\u5f84\u6761\u6570\u3002\u3002
\u968f\u4fbfDp\u4e00\u4e0b\u5c31\u51fa\u6765\u4e86\u3002\u3002
\u7136\u540e\u8bbeF[t]\u4e3as1->t,s2->t\u4e4b\u524d\u4e0d\u76f8\u4ea4\u7684\u8def\u5f84\u5bf9\u6570\u3002\u3002
\u663e\u7136\u679a\u4e3e\u4e00\u4e0b\u5728\u524d\u9762\u76f8\u4ea4\u7684\uff0c\u51cf\u6389\u5373\u53ef\u3002\u3002
F[t]=G[s1][t]*G[s2][t]-Sum{F[k]*G[k][t]^2}..
\u7136\u540e\u5c31\u5dee\u4e0d\u591aOK\u4e86\u3002\u3002
Ans=G[s1][t1]*G[s2][t2]-Sum{F[k]*G[k][t1]*G[k][t2]}\u3002\u3002
\u5c31OK\u4e86\u3002\u3002
<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"