Can you solve this real interview question? Range Sum Query - Mutable - Given an integer array nums, handle multiple queries of the following types: 1. Update the value of an element in nums. 2. Calculate the sum of the elements of nums between indice
NumArray(int[] nums)Initializes the object with the integer arraynums. int sumRange(int left, int right)Returns thesumof the elements ofnumsbetween indicesleftandrightinclusive(i.e.nums[left] + nums[left + 1] + ... + nums[right]). Example 1: Input["NumArray", "sumRange", "sumRan...
The array is only modifiable by the update function. You may assume the number of calls to update and sumRange function is distributed evenly. 二. 题目分析 题目在Range Sum Query - Immutable一题的基础上添加的难度,要求在输入数组nums后,可以改动数组的元素,每次仅仅改动一个元素。相同要实现求数组的...
Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i, val) function modifies nums by updating the element at index i to val. Example: ...
sumRange(0, 2) -> 9update(1, 2) sumRange(0, 2) -> 8 Analysis: 一开始想着用一个简单的数组存取并进行更新和求和就可以,实际写的时候发现不太可行,网上找了找发现了一种新的数据结构或者说一种新的方法——树状数组(Binary Index Tree ,or Fenwick Tree)。
https://leetcode.com/problems/range-sum-query-mutable/ 题目: nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i, val) function modifies nums by updating the element at index i to val . ...
LeetCode 307. Range Sum Query - Mutable 简介:update(i, val) 函数可以通过将下标为 i 的数值更新为 val,从而对数列进行修改。 Description Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive....
你可以假设update和sumRange函数的调用是均匀分布的。 原文 Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i, val) function modifies nums by updating the element at index i to val. ...
来自专栏 · LeetCode刷题 题目描述(中等难度) 307、Range Sum Query - Mutable Given an integer array nums, find the sum of the elements between indices i and j (i≤ j), inclusive. The update(i, val) function modifies nums by updating the element at index i to val. ...
Golang中如何实现Range Sum Query - Immutable功能? 在Leetcode 303题中,Golang的解法有哪些优化技巧? Golang实现Range Sum Query - Immutable时,时间复杂度是多少? 版权声明:原创勿转 https://cloud.tencent.com/developer/article/1412946 思路 保存一个slice code 代码语言:javascript 代码运行次数:0 运行 AI...