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Published: Jul 18, 2021 License: MIT Imports: 0 Imported by: 0

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303. Range Sum Query - Immutable

[简单] 动态规划


给定一个整数数组  nums,求出数组从索引 i 到 j  (i ≤ j) 范围内元素的总和,包含 i,  j 两点。

示例:

给定 nums = [-2, 0, 3, -5, 2, -1],求和函数为 sumRange()

sumRange(0, 2) -> 1
sumRange(2, 5) -> -1
sumRange(0, 5) -> -3

说明:


	你可以假设数组不可变。
	会多次调用 sumRange 方法。


Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type NumArray

type NumArray struct {
	// contains filtered or unexported fields
}

func Constructor

func Constructor(nums []int) NumArray

func (*NumArray) SumRange

func (na *NumArray) SumRange(i int, j int) int

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