【前缀和】和为K、和可被K整除的子数组
连续子数组问题是算法中经常可以见到的一类题目，通过几个典型的题目分析，可以发现这类题目主要分为两大类，其解题思路通过最简单的子串枚举（枚举所有的子串起点和终点）来暴力解决大都不难，但是如果考虑到对空间和时间的要求，其解答就需要一定的算法技巧。 子数组和问题（前缀和+哈希表） 子数组 ...
原文：[LeetCode] 974. Subarray Sums Divisible by K 子数组数字之和可被K整除
Given an arrayAof integers, return the number of contiguous, non empty subarrays that have a sum divisible byK. Example : Note: lt A.length lt lt A i lt lt K lt 这道题给了一个数组，让返回数组的数字之和可以被K整除的非空子数组的个数。博主 ...
2020-12-20 12:43 0 708 推荐指数：
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