编辑代码

#include<stdio.h>
int main(){
    int n,i,grade,a=0,b=0,c=0,d=0,e=0;
    scanf("%d",&n); 
    for(i=1;i<=n;i++){
        scanf("%d",&grade);
        switch (grade/10){
            case 10: 
            case 9:a++;break;
            case 8:b++;break;
            case 7:c++;break;
            case 6:d++;break;
            default:e++;break;
        }
    }
    printf("%d %d %d %d %d",a,b,c,d,e);
    return 0;
}