#include <stdio.h>
#include <stdlib.h>
int countdigit(int number, int n);
int main()
{
int number ,digit ;
printf("please input digit and number: ");
scanf("%d %d",&number,&digit);
number = countdigit(number,digit);
printf("the number of digit %d : %d\n",digit,number);
return 0;
}
int countdigit(int number,int digit)
{
int count = 0 ,temp;
if(number < 0)
{
number *= -1 ;
}
while(number > 10)
{
temp = number %10;
number = number /10 ;
if(temp == digit)
count++;
}
if(number == digit)
count ++ ;
return count ;
}