C语言 交换法排序

#include

#define ARR_SIZE 40

int main()

{

float score[ARR_SIZE],temp1;

int n,i,j;

long num[ARR_SIZE],temp2;

printf("Please enter total number:");

scanf("%d",&n); /*从键盘输入学生人数n*/

for(i=0;i

{

scanf("%ld%f",&num[i],&score[i]);

}

/*用交换法按成绩由高到低对学生成绩及学好重新排列*/

for(i=0;i

{

for(j=i+1;j

{

if(score[j]>score[i]) /*按成绩由高到低排序*/

{

/*交换成绩*/

temp1=score[j];

score[j]=score[i];

score[i]=temp1;

/*交换学号*/

temp2=num[j];

num[j]=num[i];

num[i]=temp2;

}/*if结束*/

}/*内层for循环结束*/

}/*外层for循环结束*/

printf("Sorted results:\n");

for(i=0;i

{

printf("%d\t%4.0f\n",num[i],score[i]);

}

}