def productExceptSelf(nums): n = len(nums) res = [1]*n ## left product lp = 1 for i in range(n): res[i]=lp lp = lp*nums[i] ## right product rp = 1 for i in range(n-1, -1, -1): res[i] = res[i] * rp rp = rp*nums[i] return res 举例说明 为了更清楚地解释...
从右向左的,我们保存到res里,从左向右的,我们用一个int代替就行了(这样不会影响res中没有用的元素) classSolution {publicint[] productExceptSelf(int[] nums) {int[] res =newint[nums.length]; res[nums.length- 1] = nums[nums.length - 1];for(inti = nums.length - 2; i >= 0; i--) ...
1、题目描述 2、题目分析 每个元素对应的积应该是 它 前面的每个元素的积,和后面的每个元素的积 3、代码 1vector<int> productExceptSelf(vector<int>&nums) {23vector<int>res( nums.size() );45longp =1;6for(inti =0; i< nums.size() ; i++)7{8res[i] =p;9p *=nums[i];10}1112p =1...
Description Given an array nums of n integers where n > 1, return an array output such that output[i] is equal to the product of all the elements of nums except nums[i]. Example: Input: [1,2,3,4]…
题解: 左右各乘一遍。 classSolution{ public: vector<int>productExceptSelf(vector<int>&nums) { intn=nums.size(); if(n==0) { return{}; } vector<int>res(n,0); intleft=1,right=1; res[0]=1; for(inti=1;i<n;i++) { res[i]=left*nums[i-1]; ...
代码: class Solution(object): def productExceptSelf(self, nums): n = len(nums) res = [1] * n temp = 1 for i in range(0, n - 1): res[i + 1] = res[i] * nums[i] for i in range(n - 1, 0, -1): res[i] *= temp ...
LeetCode Top 100 Liked Questions 238. Product of Array Except Self (Java版; Medium) 题目描述 Given an array nums of n integers where n > 1, return an array output such that output[i] is equal to the product of all the elements of nums except nums[i]. ...
思路:先用输出数组从右向左计算累积元素的乘积,然后从左向左计算nums[i] = product(0, i-1) * result(i + 1) Runtime: 1 ms, faster than 100.00% of Java online submissions for Product of Array Except Self. Memory Usage: 40.8 MB, less than 84.97% of Java online submissions for Product of...
* 网址:https://leetcode.com/problems/product-of-array-except-self/ * 结果:AC * 来源:LeetCode * 博客: ---*/#include<iostream>#include<vector>usingnamespacestd;classSolution{public:vector<int>productExceptSelf(vector<int>& nums){intsize = nums.size();vector<int>result(size,0);vector<int...
Can you solve this real interview question? Product of Array Except Self - Given an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i]. The product of any prefix or suffix of