【HackerRank】 Find Digits

Find Digits

Problem Statement

Given a number you have to print how many digits in that number exactly divides that number.

Input format

The first line contains T (number of test cases followed by t lines each containing n

Constraints
1 <=T <= 15
0 < N < 10¹⁰

Output Format
Number of digits in that number exactly divides that number.

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题解：

 1 import java.io.*;

 2 import java.util.*;

 3 

 4 

 5 public class Solution {

 6 

 7     public static void main(String[] args) {

 8         Scanner in = new Scanner(System.in);

 9         int t = in.nextInt();

10         for(int i = 0; i < t; i++){

11             Long num = in.nextLong();

12             System.out.println(FindDigits(num));

13         }

14     }

15     

16     private static int FindDigits(Long num){

17         

18          //Write code to solve each of the test over here

19          Long copy_num = num;

20          int count = 0;

21          while(num>0){

22              Long digit = num%10;

23              if(digit!=0 && copy_num%digit==0)

24                  count++;

25              num /= 10;

26          }

27          return count;

28     }

29     

30     

31 }