［抄题］: Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of t…
problem 724. Find Pivot Index 题意:先求出数组的总和,然后维护一个当前数组之和curSum,然后对于遍历到的位置,用总和减去当前数字,看得到的结果是否是curSum的两倍,是的话,那么当前位置就是中枢点,返回即可:否则就将当前数字加到curSum中继续遍历,遍历结束后还没返回,说明没有中枢点,返回-1即可. solution: 注意,不管有几种方式,最后的结果都是从最左边开始的那个结果,那么我们就直接从最左边开始计算,返回第一个满足条件的即可. class Solu…
Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of the ind…
Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of the ind…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 先求和,再遍历 日期 题目地址:https://leetcode.com/problems/find-pivot-index/description/ 题目描述 Given an array of integers nums, write a method that returns the "pivot" index of this arr…
Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of the ind…
Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of the ind…
Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of the ind…
Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the right of the ind…
645. Set Mismatch The set S originally contains numbers from 1 to n. But unfortunately, due to the data error, one of the numbers in the set got duplicated to another number in the set, which results in repetition of one number and loss of another nu…
leetcode 第五天 2018年1月6日 22.(566) Reshape the Matrix JAVA class Solution { public int[][] matrixReshape(int[][] nums, int r, int c) { int[][] newNums = new int[r][c]; int size = nums.length*nums[0].length; if(r*c != size) return nums; for(int i=0;i<siz…
突然很想刷刷题,LeetCode是一个不错的选择,忽略了输入输出,更好的突出了算法,省去了不少时间. dalao们发现了任何错误,或是代码无法通过,或是有更好的解法,或是有任何疑问和建议的话,可以在对应的随笔下面评论区留言,我会及时处理,在此谢过了. 过程或许会很漫长,也很痛苦,慢慢来吧. 编号 题名 过题率 难度 1 Two Sum 0.376 Easy 2 Add Two Numbers 0.285 Medium 3 Longest Substring Without Repeating C…
118. Pascal's Triangle Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5,Return [ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4,1] ] class Solution(object): def generate(self, numRows): """ :type numR…
All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) . Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…
Return the pivot index of the given array of numbers. The pivot index is the index where the sum of the numbers on the left is equal to the sum of the numbers on the right. Input Array {1,2,3,4,0,6} return 3 One for loop to calculate sum, then ano…
如题:经常搞混淆,index()获取的是下标,而eq(下标值)获取的是元素对象 var list=$(".toos");//获取class为toos的元素集合$('.toos').on('click', function(){ //var index=list.eq(this); var index=list.index(this);//获取下标 alert(index); alert(list.length);});…
Find Pivot: Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of the numbers to the left of the index is equal to the sum of the numbers to the righ…
