给一个都是整数的数组,返回 和可以被K整除的子数组 数。Given an array A of integers, return the number of (contiguous, non-empty) subarrays that have a sum divisible by K.Example 1:Input: A = [4,5,0,-2,-3,1], K = 5Output: 7Expl
Can you solve this real interview question? Subarray Sums Divisible by K - Given an integer array nums and an integer k, return the number of non-empty subarrays that have a sum divisible by k. A subarray is a contiguous part of an array. Example 1:
leetcode 974 Subarray Sums Divisible by K leetcode 974 Subarray Sums Divisible by K 1.题目描述 2.解题思路 3.Python代码 1.题目描述 给定一个整数数组 A,返回其中元素之和可被 K 整除的(连续、非空)子数组的数目。 示例: 输入:A = [4,5,0,-2,-3,1], K = 5 输出:7 解释: 有 7 个子...
leetcode 974. Subarray Sums Divisible by K Another Two Sum classSolution{publicintsubarraysDivByK(int[] A,intK){int[] sum =newint[A.length +1];for(inti=0; i < A.length; ++i) sum[i +1] = sum[i] + A[i]; Map<Integer, Integer> c =newHashMap<Integer, Integer>();intret=0...
sum = (sum + num % K + K) % K; res += cnt[sum]; ++cnt[sum]; }returnres; } }; Github 同步地址: https://github.com/grandyang/leetcode/issues/974 类似题目: Subarray Sum Equals K Make Sum Divisible by P 参考资料: https://leetcode.com/problems/subarray-sums-divisible-by-k/ ...
Given an integer array nums and an integer k, return the number of non-empty subarrays that have a sum divisible by k.A subarray is a contiguous part of an array. Example 1:Input: nums = [4,5,0,-2,-3,1], k = 5Output: 7Explanation: There are 7 subarrays w
链接:https://leetcode-cn.com/problems/subarray-sums-divisible-by-k 1.负数求余 Sum = ((Sum % Mod) + Mod) % Mod; 2.同余定理应用 子数组和能否被K整除 转化为 (preSum[j] - preSum[i-1]) mod K == 0 根据同余定理,转化为 preSum[j] mod K == preSum[i-1] mod K class...
974. Subarray Sums Divisible by K** https://leetcode.com/problems/subarray-sums-divisible-by-k/ 题目描述 Given an array A of integers, return the number of (contiguous, non-empty) subarrays that have a sum divisible by K. ...
leetcode 974 Subarray Sums Divisible by K leetcode 974 Subarray Sums Divisible by K 1.题目描述 2.解题思路 3.Python代码 1.题目描述 给定一个整数数组 A,返回其中元素之和可被 K 整除的(连续、非空)子数组的数目。 示例: 输入:A = [4,5,0,-2,-3,1], K = 5 输出:7 解释: 有 7 个子...
leetcode974. Subarray Sums Divisible by K Given an array A of integers, return the number of (contiguous, non-empty) subarrays that have a sum divisible by K. Example 1: Note: 给定一个集合,求这个集合中子集的个数,其中对子集的要求是子集中元素的和能被k整除。 记数组pre[i+1]表示前 i ...