UVa 230 - Borrowers(模拟)

又是一道模拟的题,按照要求进行操作即可,下标什么的一定要选对,输出顺序要看好。

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#include<iostream>
#include<cstdio>
#include<algorithm>
#include<string>
#include<vector>
#include<map>
using namespace std;
struct book{
string author;
int status;
};
map<string,book>books;
vector<string>name;
bool compare(string a,string b){
if(books[a].author==books[b].author) return a<b;
else return books[a].author<books[b].author;
}
int main(){
string x,z,m;
book y;
while(getline(cin,m)){
if(m=="END") break;
x=m.substr(0,m.find_last_of("\"")+1);
y.author=m.substr(m.find_last_of("\"")+1);
name.push_back(x);
books[x]=y;
}
sort(name.begin(),name.end(),compare);
for(int i=0;i<name.size();i++)
books[name[i]].status=1;
while(cin>>x){
if(x=="END") break;
if(x=="BORROW"){
getchar();
getline(cin,z);
books[z].status=0;
}
if(x=="RETURN"){
getchar();
getline(cin,z);
books[z].status=-1;
}
if(x=="SHELVE"){
for(int i=0;i<name.size();i++)
if(books[name[i]].status==-1){
int j;
for(j=i;j>=0;--j)
if(books[name[j]].status==1) break;
if(j>-1) cout<<"Put "<<name[i]<<" after "<<name[j]<<endl;
else cout<<"Put "<<name[i]<<" first"<<endl;
books[name[i]].status=1;
}
cout<<"END"<<endl;
}
}
return 0;
}

本文迁移自我的 CSDN博客 ,格式可能有所偏差。