Given a string S of lowercase letters, a duplicate removal consists of choosing two adjacent and equal letters, and removing them. We repeatedly make ...
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其他好文 时间:
2020-07-15 13:09:25
阅读次数:
90
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 ...
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编程语言 时间:
2020-07-14 11:46:56
阅读次数:
56
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 ...
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其他好文 时间:
2020-07-11 10:06:32
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59
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 ...
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其他好文 时间:
2020-07-06 16:06:35
阅读次数:
68
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 ...
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其他好文 时间:
2020-07-02 22:01:14
阅读次数:
60
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 ...
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编程语言 时间:
2020-06-29 17:08:43
阅读次数:
72
Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The solution set must not conta ...
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其他好文 时间:
2020-06-29 00:11:37
阅读次数:
54
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 ...
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其他好文 时间:
2020-06-26 16:06:44
阅读次数:
40
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, ...
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其他好文 时间:
2020-06-25 23:47:18
阅读次数:
92
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' ...
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其他好文 时间:
2020-06-24 23:43:31
阅读次数:
50