Use function to count the number of specified numbers

#include<stdio.h>
int countdigit(int number,int digit)
{
	int i,a,b=0;
	while(number!=0)
	{
		a=number%10;
		if(a==digit)
		{
			b++;
		}
		number/=10;
	}
	return b;
}
intmain()
{
	int b,c,a;
	scanf("%d%d",&a,&b);
	c=countdigit(a,b);
	printf("Number of digit %d:%d\n",b,c);
	return 0;
}*/