Continuous Subarray Sum Problem Solution In PHP
Check if array has subarray with sum divisible by k using modulo and hashmap in O(n) time complexity.
523. Continuous Subarray Sum Difficulty: Medium Topics: Array, Hash Table, Math, Prefix Sum Given an integer array nums and an integer k, return true if nums has a good subarray or false otherwise. A good subarray is a subarray where: its length is at least two, and the sum of the elements of the subarray is a multiple of k. Note that: A subarray is a contiguous part of the array. An integer x is a multiple of k if there exists an integer n such that x = n * k. 0 is always a multiple of k. Example 1: Input: nums = [23,2,4,6,7], k = 6 Output: true Explanation: [2, 4] is a continuous subarr...