成绩排序 

#include<stdio.h>
#include<stdlib.h>
struct student{
	char name[50];
	int score;
	int order;
};
int flag;
int cmp(const void *a,const void *b){
	struct student *s1=(struct student*)a;
	struct student *s2=(struct student*)b;
	if(s1->score==s2->score)
		return s1->order-s2->order;
	return flag==1?(s1->score-s2->score):(s2->score-s1->score);
}
int main(){
	int n;
	while((scanf("%d",&n))!=EOF){
		struct student stu[1000];
		scanf("%d",&flag);
		for(int i=0;i<n;i++){
			scanf("%s %d",stu[i].name,&stu[i].score);
			stu[i].order=i;
		}
		qsort(stu,n,sizeof(stu[0]),cmp);
		for(int i=0;i<n;i++)
			printf("%s %d\n",stu[i].name,stu[i].score);
	}
	
	return 0;
}