输入某班c语言成绩，人数未知，用-1作为结束标志，若大于100分，则重新输入，计算全班的最高分，最低分与平均分

#include <stdio.h>
int main()
{
    int score=0,max_p=0,min_p=100;
    int total_score=0,total_student=0;
    while (1){
        scanf("%d",&score);
        if (score==-1){
            break;
        }
        else if (score>100 || score<0){
            continue;
        }
        else{
            if (score>max_p){
                max_p=score;
            }
            if (score<min_p){
                min_p=score;
            }
            total_score+=score;
            total_student++;
        }
    }
    double average=1.0*total_score/total_student;
    printf("全班一共有学生:%d\n",total_student);
    printf("全班平均分:%.1f\n",average);
    printf("全班最高分:%d\n",max_p);
    printf("全班最低分:%d",min_p);
}