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1047. Remove All Adjacent Duplicates In String
Given a string S of lowercase letters, a duplicate removal consists of choosing two adjacent and equal letters, and removing them. We repeatedly make ...
分类:其他好文   时间:2020-07-15 13:09:25    阅读次数:90
LeeCode 1497. 检查数组对是否可以被 k 整除
将每个数按照mod k的余数不同分成k类, 负数的余数为负数,特殊处理:(arr[i] % k + k) % k。 class Solution { public boolean canArrange(int[] arr, int k) { int[] cnt = new int[k]; for(i ...
分类:编程语言   时间:2020-07-14 11:46:56    阅读次数:56
LC-1047 Remove All Adjacent Duplicates In String
https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/ 给一个字符串,如果出现两个相邻的相同字符,就将它们一同删去,重复这个操作直到不能继续做为止,返回最后的字符串 一开始我是用类似递归的方式重复对这个字符串进行 ...
分类:其他好文   时间:2020-07-11 10:06:32    阅读次数:59
26. Remove Duplicates from Sorted Array
Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra spa ...
分类:其他好文   时间:2020-07-06 16:06:35    阅读次数:68
217. Contains Duplicate
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr ...
分类:其他好文   时间:2020-07-02 22:01:14    阅读次数:60
5、Python 数据分析-Pandas数据清洗【2】
1、 处理重复数据drop_duplicates函数 #设定一些重复行数据 df.iloc[1] = [0,0,0,0,0,0,0,0] df.iloc[3] = [0,0,0,0,0,0,0,0] df.iloc[5] = [0,0,0,0,0,0,0,0] df.iloc[7] = [0,0,0 ...
分类:编程语言   时间:2020-06-29 17:08:43    阅读次数:72
90. Subsets II
Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The solution set must not conta ...
分类:其他好文   时间:2020-06-29 00:11:37    阅读次数:54
dataframe去重
a = frame.drop_duplicates(subset=['pop'],keep='first') #保留重复数据的第一个 b = frame.drop_duplicates(subset=['pop'],keep=False) #去掉重复的数据 ...
分类:其他好文   时间:2020-06-26 16:06:44    阅读次数:40
全排列2 · Permutations
Given a collection of numbers that might contain duplicates, return all possible unique permutations. Example: Input: [1,1,2] Output: [ [1,1,2], [1,2, ...
分类:其他好文   时间:2020-06-25 23:47:18    阅读次数:92
496. Next Greater Element I
You are given two arrays (without duplicates) nums1 and nums2 where nums1’s elements are subset of nums2. Find all the next greater numbers for nums1' ...
分类:其他好文   时间:2020-06-24 23:43:31    阅读次数:50
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