Table of Contents
一、中文版
二、英文版
三、My answer
四、解题报告
给你一个数组 nums
。数组「动态和」的计算公式为:runningSum[i] = sum(nums[0]…nums[i])
。
请返回 nums
的动态和。
示例 1:
输入:nums = [1,2,3,4] 输出:[1,3,6,10] 解释:动态和计算过程为 [1, 1+2, 1+2+3, 1+2+3+4] 。
示例 2:
输入:nums = [1,1,1,1,1] 输出:[1,2,3,4,5] 解释:动态和计算过程为 [1, 1+1, 1+1+1, 1+1+1+1, 1+1+1+1+1] 。
示例 3:
输入:nums = [3,1,2,10,1] 输出:[3,4,6,16,17]
提示:
1 <= nums.length <= 1000
-10^6 <= nums[i] <= 10^6
Given an array nums
. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i])
.
Return the running sum of nums
.
Example 1:
Input: nums = [1,2,3,4] Output: [1,3,6,10] Explanation: Running sum is obtained as follows: [1, 1+2, 1+2+3, 1+2+3+4].
Example 2:
Input: nums = [1,1,1,1,1] Output: [1,2,3,4,5] Explanation: Running sum is obtained as follows: [1, 1+1, 1+1+1, 1+1+1+1, 1+1+1+1+1].
Example 3:
Input: nums = [3,1,2,10,1] Output: [3,4,6,16,17]
Constraints:
1 <= nums.length <= 1000
-10^6 <= nums[i] <= 10^6
class Solution:
def runningSum(self, nums: List[int]) -> List[int]:
res = [0] * len(nums)
for i in range(len(nums)):
for j in range(i + 1):
res[i] += nums[j]
return res
数据结构:数组
算法:暴力遍历