Package g2501_2600.s2544_alternating_digit_sum

Class Solution

java.lang.Object

g2501_2600.s2544_alternating_digit_sum.Solution

public class Solution
extends Object

2544 - Alternating Digit Sum.

Easy

You are given a positive integer n. Each digit of n has a sign according to the following rules:

• The most significant digit is assigned a positive sign.
• Each other digit has an opposite sign to its adjacent digits.

Return the sum of all digits with their corresponding sign.

Example 1:

Input: n = 521

Output: 4

Explanation: (+5) + (-2) + (+1) = 4.

Example 2:

Input: n = 111

Output: 1

Explanation: (+1) + (-1) + (+1) = 1.

Example 3:

Input: n = 886996

Output: 0

Explanation: (+8) + (-8) + (+6) + (-9) + (+9) + (-6) = 0.

Constraints:

• 1 <= n <= 109

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	alternateDigitSum(int n)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

alternateDigitSum

public int alternateDigitSum(int n)