Exercise 9-4 finding books (20 points)

Given n The title and price of the book , This question requires the preparation of procedures , Find and output the name and price of the book with the highest and lowest price .

Input format :

Enter the first line to give a positive integer n（<10）, Subsequently given n Information about this book . Each book gives its title in a line , That is, the length does not exceed 30 String , The next line gives a positive real price . The title guarantees that there is no book of the same price .

Output format :

In a row, press “ Price , Title ” The format output price is the highest and the lowest . Price retention 2 Decimal place .

sample input :

3
Programming in C
21.5
Programming in VB
18.5
Programming in Delphi
25.0

sample output :

25.00, Programming in Delphi
18.50, Programming in VB

The code is as follows :

#include <stdio.h>
struct books// Structure of definition book 
{
    char name[31];// Title 
    double  price;// Price 
};
int main()
{
    int n,i,max=0,min=0;
    double temp;
    struct books a[10];
    scanf("%d",&n);// The number of books 
    for(i=0;i<n;i++)
    {
        getchar();// absorption scanf Carriage return left by function 
        gets(a[i].name);//name
        scanf("%lf",&a[i].price);//price
    }
    for(i=1;i<n;i++)// Find the most expensive one 
    {
        if(a[i].price>a[max].price)
        {
            max=i;
        }
    }
    for(i=1;i<n;i++)// Find the cheapest 
    {
        if(a[i].price<a[min].price)
        {
            min=i;
        }
    }
     printf("%.2lf, %s\n",a[max].price,a[max].name);
     printf("%.2lf, %s",a[min].price,a[min].name);
     return 0;
}

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