Package g2501_2600.s2520_count_the_digits_that_divide_a_number

Class Solution

java.lang.Object
g2501_2600.s2520_count_the_digits_that_divide_a_number.Solution
public class Solution extends java.lang.Object
2520 - Count the Digits That Divide a Number.

Easy

Given an integer num, return the number of digits in num that divide num.

An integer val divides nums if nums % val == 0.

Example 1:

Input: num = 7

Output: 1

Explanation: 7 divides itself, hence the answer is 1.

Example 2:

Input: num = 121

Output: 2

Explanation: 121 is divisible by 1, but not 2. Since 1 occurs twice as a digit, we return 2.

Example 3:

Input: num = 1248

Output: 4

Explanation: 1248 is divisible by all of its digits, hence the answer is 4.

Constraints:

  • 1 <= num <= 109
  • num does not contain 0 as one of its digits.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    countDigits(int num)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • countDigits

      public int countDigits(int num)