{"id":888,"date":"2019-07-15T00:11:32","date_gmt":"2019-07-14T16:11:32","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=888"},"modified":"2019-07-15T00:11:32","modified_gmt":"2019-07-14T16:11:32","slug":"lp2519-haoi2011-problem-a","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2019\/07\/15\/lp2519-haoi2011-problem-a\/","title":{"rendered":"lp2519 HAOI2011 problem a"},"content":{"rendered":"\n

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#include<iostream>\n#include<cstdio>\n#include<cstring>\n#include<algorithm>\n#include<queue>\n#include<vector>\n#include<map>\nusing namespace std;\n\ninline int Max(int A,int B){\n\treturn A>B?A:B;\n}\ninline int Min(int A,int B){\n\treturn A<B?A:B;\n}\ntypedef pair<int,int> pii;\nconst int N=100005;\nint n;\nint f[N];\nvector<int> lst[N];\nmap<pii,int> mp;\nvoid init(){\n\tscanf(\"%d\",&n);\n\tint x,y,l,r;\n\tfor(int i=1;i<=n;++i){\n\t\tscanf(\"%d%d\",&x,&y);\n\t\tl=x+1,r=n-y;\n\t\tif(l>r){\n\t\t\tcontinue;\n\t\t}\n\t\tif(++mp[(pii){l,r}]==1){\n\t\t\tlst[r].push_back(l);\n\t\t}\n\t}\n\tfor(int i=1;i<=n;++i){\n\t\tf[i]=f[i-1];\n\t\tfor(int j=0;j<lst[i].size();++j){\n\t\t\tf[i]=Max(f[i],f[lst[i][j]-1]+Min(i-lst[i][j]+1,mp[(pii){lst[i][j],i}]));\n\t\t}\n\t}\n\tprintf(\"%d\\n\",n-f[n]);\n}\nint main(){\n\tinit();\n\treturn 0;\n}\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u6211\u4eec\u4e3a\u6bcf\u4e2a\u8003\u751f\u8bbe\u7f6e\u4e00\u4e2a\u53ef\u80fd\u7684\u533a\u95f4\u3002\u8fd9\u4e2a\u533a\u95f4\u7684\u5de6\u7aef\u70b9\u662fl=a+1\uff0c\u53f3\u7aef\u70b9\u662fr=n-b\u3002 \u4ed4\u7ec6\u89c2\u5bdf\uff0c\u4f1a\u53d1\u73b0\uff0c\u8fd9\u4e2a\u53ef … <\/p>\n
\u7ee7\u7eed\u9605\u8bfb\u201clp2519 HAOI2011 problem a\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[34,9,6,5],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/888"}],"collection":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/comments?post=888"}],"version-history":[{"count":1,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/888\/revisions"}],"predecessor-version":[{"id":889,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/888\/revisions\/889"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=888"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}