Package g3601_3700.s3663_find_the_least_frequent_digit

Class Solution

java.lang.Object

g3601_3700.s3663_find_the_least_frequent_digit.Solution

public class Solution
extends Object

3663 - Find The Least Frequent Digit.

Easy

Given an integer n, find the digit that occurs least frequently in its decimal representation. If multiple digits have the same frequency, choose the smallest digit.

Return the chosen digit as an integer.

The frequency of a digit x is the number of times it appears in the decimal representation of n.

Example 1:

Input: n = 1553322

Output: 1

Explanation:

The least frequent digit in n is 1, which appears only once. All other digits appear twice.

Example 2:

Input: n = 723344511

Output: 2

Explanation:

The least frequent digits in n are 7, 2, and 5; each appears only once.

Constraints:

• 1 <= n <= 231 - 1

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	getLeastFrequentDigit(int n)

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

getLeastFrequentDigit

public int getLeastFrequentDigit(int n)