Answer Posted / pratik roy

#include<stdio.h>
#include<conio.h>

void freq(int ,int ,int );

int main()
{
int a,key,count,i;
printf("Enter the elements\n");
scanf("%d",&a);
printf("Enter the element whose frequency is to be determined\n");
scanf("%d",&key);
freq(a,key,0);
getch();
return 0;
}

void freq(int num,int key,int count)
{
int samkey,i;
i=num/10;
if(i!=0)
{
samkey = num%10;
if(samkey == key ) {count++; freq(num,key,count);}
else
{
num=num/10;
freq(num,key,count);
}
}
printf("%d",count);
}

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