求解这个哪里有问题 如何一个分数对应一个等级

Question

#include <stdio.h>
int main()
{
int score, degree, No_stu, i = 1;
printf("please input the No. of class:");
scanf_s("%d", &No_stu);
do {
printf("please input score:");
scanf_s("%d", &score);
} while (i <= No_stu);
while (score < 0 || score >100)
{
printf("score is illegal!\n");
continue;
}
degree = (int)(score / 10);
switch (degree)
{
case 10:
case 9:
printf("corresponding degree is A\n");
break;
case 8:
printf("corresponding degree is B\n");
break;
case 7:
printf("corresponding degree is C\n");
break;
case 6:
printf("corresponding degree is D\n");
break;
default:
printf("corresponding degree is E\n");
break;
}
i++;
return 0;}
求解如何一个分数对应一个等级

Answer 1

case 10: 后面缺语句，i++; 和 return 0; 之间加上一个 }