C学生成绩统计

输入10个学生的成绩，输出平均分，最高分，最低分
输入一个分数，输出多少学生比这个分数高

#include <stdio.h>

void main()
{
	int grade[10],grade0[10];
	int i, maxGrade, minGrade,tmp,x,m=0;
	double avg,sum=0;
	printf("输入10个学生的成绩:\n");
	for (i = 0; i < 10; i++)
	{
		scanf("%d", &grade[i]);
		grade0[i] = grade[i];
	}
	for (int i= 0; i < 9; i++)
		for (int j = 0; j < 9; j++)
			if (grade[j] > grade[j + 1]) {
				tmp = grade[j];
				grade[j] = grade[j + 1];
				grade[j + 1] = tmp;
			}
	
	for (i = 0; i < 10; i++) {
		if (grade0[i] == grade[0]) minGrade = i + 1;
		if (grade0[i] == grade[9]) maxGrade = i + 1;
	}
	for (i = 0; i < 10; i++)
		sum += grade[i];
	avg = sum / 10;
	printf("average=%.1lf ", avg);
	printf("max=%d ", maxGrade);
	printf("min=%d\n", minGrade);
	printf("请输入一个分数:");
	scanf("%d", &x);
	for (i = 0; i < 10; i++) 
		if (grade[i] >= x) m++;
	printf("%d students", m);
}