描述
定义一个包含图书信息（书号、书名、价格）的顺序表，读入相应的图书数据完成图书信息表的创建，然后将图书按照价格降序排序，逐行输出排序后每本图书的信息。
输入
输入n+1行，前n行是n本图书的信息（书号、书名、价格），每本图书信息占一行，书号、书名、价格用空格分隔，价格之后没有空格。最后第n+1行是输入结束标志：0 0 0（空格分隔的三个0）。其中书号和书名为字符串类型，价格为浮点数类型。
输出
总计n行，每行是一本图书的信息（书号、书名、价格），书号、书名、价格用空格分隔。其中价格输出保留两位小数。
输入样例 1
9787302257646 Data-Structure 35.00
9787302164340 Operating-System 50.00
9787302219972 Software-Engineer 32.00
9787302203513 Database-Principles 36.00
9787810827430 Discrete-Mathematics 36.00
9787302257800 Data-Structure 62.00
9787811234923 Compiler-Principles 62.00
9787822234110 The-C-Programming-Language 38.00
0 0 0
输出样例 1
9787302257800 Data-Structure 62.00
9787811234923 Compiler-Principles 62.00
9787302164340 Operating-System 50.00
9787822234110 The-C-Programming-Language 38.00
9787302203513 Database-Principles 36.00
9787810827430 Discrete-Mathematics 36.00
9787302257646 Data-Structure 35.00
9787302219972 Software-Engineer 32.00
代码
#include <bits/stdc++.h>
#define Maxsize 1000
using namespace std;
struct Book{
string ISBN;
string Name;
double Price;
};
int main()
{
int i=0;
struct Book book[Maxsize];
while(1)
{
cin>>book[i].ISBN>>book[i].Name>>book[i].Price;
if(book[i].ISBN=="0"&&book[i].Name=="0"&&book[i].Price==0)
break;
++i;
}
struct Book bookcmp;
for(int a=0;a<i-1;a++)
{
for(int b=a+1;b<i;b++)
{
if(book[a].Price<book[b].Price)
{
bookcmp=book[a];
book[a]=book[b];
book[b]=bookcmp;
}
if(book[a].Price==book[b].Price)
{
if(book[a].ISBN>book[b].ISBN)
{
bookcmp=book[a];
book[a]=book[b];
book[b]=bookcmp;
}
}
}
}
for(int j=0;j<i;j++)
cout<<book[j].ISBN<<" "<<book[j].Name<<" "<<fixed<<setprecision(2)<<book[j].Price<<endl;
return 0;
}