mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
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#include<iostream>
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#include<cstdio>
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#include<cstring>
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#include<set>
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#include<map>
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using namespace std;
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const int maxx=1010;
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typedef struct Node
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{
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string book,name;
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bool operator<(const struct Node &x)const
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{
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if(name!=x.name) return name<x.name;
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return book<x.book;
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}
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}node;
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int main()
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{
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set<node> st;
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map<string,string> mp;
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string s;
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node tnode;
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int p;
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while(getline(cin,s))
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{
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if(s[0]=='E') break;
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p=s.find('"',1);
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tnode.book=s.substr(0,p+1);
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tnode.name=s.substr(p+5);
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mp.insert(make_pair(tnode.book,tnode.name));
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st.insert(tnode);
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}
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set<node> st1;
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while(getline(cin,s))
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{
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if(s[0]=='E') break;
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if(s[0]=='S')
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{
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set<node>::iterator it,it1;
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for(it=st1.begin();it!=st1.end();it++)
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{
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cout<<"Put "<<it->book<<" ";
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it1=st.lower_bound(*it);
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if(st.empty()||it==st.begin()) cout<<"first"<<endl;
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else cout<<"after "<<(--it1)->book<<endl;
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st.insert(*it);
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}
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st1.clear();
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cout<<"END"<<endl;
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}
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else
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{
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p=s.find('"');
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string book=s.substr(p);
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tnode.book=book;
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tnode.name=mp[book];
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if(s[0]=='B') st.erase(tnode);
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else st1.insert(tnode);
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}
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}
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}
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