You are given an integer arraynums. The range of a subarray ofnumsis the difference between the largest and smallest element in the subarray. Returnthe sum of all subarray ranges ofnums. A subarray is a contiguous non-empty sequence of elements within an array. Example 1: Input: nums = [...
Leetcode__1508. Range Sum of Sorted Subarray Sums 这一题是一道十分典型的二分查找与双指针的使用,题目的大意是,给出一个数组numsnums, 我们可以通过该数组得到子数组, 子数组的大小从 1 到nn, 因此有n(n+1)2n(n+1)2个不同的子数组, 然后我们要求这些子数组的和, 然后对这些子数组的和进行排序, 求...
Given an array of integers A, find the sum of min(B), where B ranges over every (contiguous) subarray of A. Since the answer may be large, return the answer modulo 10^9 + 7. Example 1: Input: [3,1,2,4] Output: 17 Explanation: Subarrays are [3], [1], [2], [4], [3,...
Given the array nums consisting of n positive integers. You computed the sum of all non-empty continous subarrays from the array and then sort them in non-decreasing order, creating a new array of n * (n + 1) / 2 numbers. Return the sum of the numbers from index left to index righ...
subarray in a[0:i] define maxm[i] as the maximum sum of m-length subarray in a[0:i] define msum[i] as the maximum sum of non-overlap l-length subarray and m-length subarray case 1: a[i] is both not in l-length subarray and m-length subarray, then msum[i] = msum...
Can you solve this real interview question? Sum of Subarray Minimums - Given an array of integers arr, find the sum of min(b), where b ranges over every (contiguous) subarray of arr. Since the answer may be large, return the answer modulo 109 + 7. Ex
Sum of subarrays (0, i - 1), (i + 1, j - 1), (j + 1, k - 1) and (k + 1, n - 1) should be equal. where we define that subarray (L, R) represents a slice of the original array starting from the element indexed L to the element indexed R. 给定一个有 n 个整数的...
dp[i] represents the maximum sum of subarray which ends in nums[i], and dp[i] = Math.max(nums[i], dp[i - 1] + nums[i]). and since we have to include nums[i] due to it’s on the defination of dp[i], and when dp[i-1]<0 we can just choose not to add it. so the...
力扣leetcode-cn.com/problems/continuous-subarray-sum/ 题目描述 给你一个整数数组 nums 和一个整数 k ,编写一个函数来判断该数组是否含有同时满足下述条件的连续子数组: 子数组大小 至少为 2 ,且 子数组元素总和为 k 的倍数。 如果存在,返回 true ;否则,返回 false 。 如果存在一个整数 n ,令整数 x...
560. 和为 K 的子数组 - 给你一个整数数组 nums 和一个整数 k ,请你统计并返回 该数组中和为 k 的子数组的个数 。 子数组是数组中元素的连续非空序列。 示例 1: 输入:nums = [1,1,1], k = 2 输出:2 示例 2: 输入:nums = [1,2,3], k = 3 输出:2 提示