题解 | #牛牛的书#

#include <stdio.h>
#include <stdlib.h>
typedef struct
{
	char name[100];
	int  price;
}book;
int down(const void* a, const void* b)
{
	return (((book*)a)->price) - (((book*)b)->price);
}
int main()
{                                                               
	int n = 0;
	scanf("%d", &n);
	book arr[10] = { 0 };
	int i = 0;
	for( i=0;i<n;i++)
	{
		scanf("%s %d", &arr[i].name, &arr[i].price);
	}
	qsort(arr, n,sizeof(book), down);
	for (int i = 0;i < n;i++)
	{
		printf("%s\n", arr[i].name);
	}
	return 0;
}