113 lines
2.1 KiB
C++
113 lines
2.1 KiB
C++
#include<iostream>
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#include<string>
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#include<cstdio>
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#include<algorithm>
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using namespace std;
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typedef struct
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{
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double score;
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string name;
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}disney;
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bool cmp(disney a,disney b)
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{
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if(a.score==b.score)
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return a.name<b.name;
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else
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return a.score>b.score;
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}
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int sum=0;
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void NEW(disney a[],disney b)
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{
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int i;
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for(i=0;i<sum;i++)
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if(a[i].name==b.name)
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break;
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if(i==sum&&sum<=100)
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{
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a[sum].name=b.name;
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a[sum].score=b.score;
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sum++;
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cout<<"A new record"<<endl;
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}
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else
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{
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a[i].score=b.score;
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cout<<"update succeed"<<endl;
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}
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}
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void average(disney a[])
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{
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if(sum==0)
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{
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cout<<"0.00"<<endl;
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return ;
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}
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int i;
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double s=0,t;
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for(i=0;i<sum;i++)
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s+=a[i].score;
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t=s/sum;
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printf("%.2lf\n",t);
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}
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void Max(disney a[])
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{
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if(sum==0)
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{
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cout<<"0 0"<<endl;
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return ;
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}
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int i,num=0;
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sort(a,a+sum,cmp);
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for(i=1;i<sum;i++)
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{
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if(a[i].score==a[i-1].score)
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num++;
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else
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break;
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}
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cout<<a[0].score<<" "<<num+1<<endl;
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for(i=0;i<=num;i++)
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cout<<a[i].name<<endl;
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}
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void Delete(disney a[],string s)
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{
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int i;
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for(i=0;i<sum;i++)
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if(a[i].name==s)
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break;
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if(i==sum)
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cout<<"no such record"<<endl;
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else
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{cout<<"delete succeed"<<endl;
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a[i].score=0;
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sort(a,a+sum,cmp);
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sum--;
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}
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}
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int main()
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{
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disney a[100];
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disney b;
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string s,str;
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while(cin>>s)
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{
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if(s=="NEW")
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{
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cin>>b.name>>b.score;
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NEW(a,b);
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}
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else if(s=="AVERAGE")
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average(a);
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else if(s=="MAX")
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Max(a);
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else if(s=="DELETE")
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{
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cin>>str;
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Delete(a,str);
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}
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else if(s=="QUIT")
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break;
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}
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return 0;
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}
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