来一发c的AC

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int x[10]={0};
    int M,N,y,i;
    scanf("%d %d",&M,&N);
    for (;M<=N;M++)
    {
        y=M;
        for (;y>0;y/=10)
        {
            switch(y%10)
            {
                case 9:x[9]++;break;
                case 8:x[8]++;break;
                case 7:x[7]++;break;
                case 6:x[6]++;break;
                case 5:x[5]++;break;
                case 4:x[4]++;break;
                case 3:x[3]++;break;
                case 2:x[2]++;break;
                case 1:x[1]++;break;
                case 0:x[0]++;break;
            }
        }
    }
    for (i=0;i<10;i++)
        printf("%d ",x[i]);
    return 0;
}