时间限制：1 秒

内存限制：32 兆

特殊判题：否

提交：1431

解决：588

题目描述：

//九度数据严格 需要四舍五入#include <iostream>#include <list>#include<cmath>using namespace std;struct Record { int id; char key; int time;};bool returnboat(list<Record> RentRecord,Record rec,int &sumtime,int &count);int main(){ int count=0,sumtime=0,id,hour,minute; char ch; Record rec; list<Record> RentRecord; while(cin>>id && id!=-1) { //下面这两句必须放在这里 不然只能执行一次 cin>>rec.key>>hour>>ch>>minute; rec.time=hour*60+minute; if(id==0) { if(count==0) cout<<0<<" "<<0<<endl; else cout<<count<<" "<<int(double(sumtime*1.0/count)+0.5)<<endl; count=sumtime=0; RentRecord.clear(); continue; } else { rec.id=id; if(rec.key=='S') RentRecord.push_back(rec); else if(rec.key=='E') { returnboat(RentRecord,rec,sumtime,count); } } } return 0;}bool returnboat(list<Record> RentRecord,Record rec,int &sumtime,int &count){ list<Record>::iterator iter; for(iter=RentRecord.begin(); iter!=RentRecord.end(); iter++) { if((*iter).id==rec.id && (*iter).key=='S' ) { sumtime+=(rec.time-(*iter).time); count++;//成功租船一次 RentRecord.erase(iter);//删除记录 return true; } }}/************************************************************** Problem: 1022 User: windzhu Language: C++ Result: Accepted Time:10 ms Memory:1512 kb****************************************************************/