Company: Visa iit roorkee
Difficulty: medium
Alternating Digit Sum Problem Description 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. Examples 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 <= 10 9