Question

write an algorithm to find the number of occurences of middle in a given positive number in haystack​

Answer 1

Explanation:

Input : n = 25

d = 2

Output : 9

The occurrences are 2, 12, 20, 21

22 (Two occurrences), 23, 24, 25

Input : n = 25

d = 3

Output :3

The occurrences are 3, 13, 23

Input : n = 32

d = 3

Output : 6

The occurrences are 3, 13, 23, 30, 31, 32.