Pop Sequence：： Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to te ...
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其他好文 时间：
2020-06-27 13:25:15
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53
Equations are given in the format A / B = k, where A and B are variables represented as strings, and k is a real number (floating point number). Given ...
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2020-06-27 10:08:38
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52
Reverse String (E) 题目 Write a function that reverses a string. The input string is given as an array of characters char[]. Do not allocate extra space ...
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2020-06-27 10:04:20
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50
Combination Sum II (M) 题目 Given a collection of candidate numbers (candidates) and a target number (target), find all unique combinations in candidate ...
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2020-06-27 10:04:01
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52
Count and Say (E) 题目 The count-and-say sequence is the sequence of integers with the first five terms as following: 1. 1 2. 11 3. 21 4. 1211 5. 111221 ...
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2020-06-27 10:01:45
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74
Range Sum Query - Immutable (E) 题目 Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Give ...
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其他好文 时间：
2020-06-27 09:44:58
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46
恢复内容开始 Range Sum Query 2D - Immutable (M) 题目 Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left cor ...
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2020-06-27 09:36:59
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61
In this problem, a tree is an undirected graph that is connected and has no cycles. The given input is a graph that started as a tree with N nodes (wi ...
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2020-06-27 09:35:14
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75
First Missing Positive (H) 题目 Given an unsorted integer array, find the smallest missing positive integer. Example 1: Input: [1,2,0] Output: 3 Example ...
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其他好文 时间：
2020-06-27 09:31:04
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53
Shell script notes I used this tutorial to learn shell scripting: Shell Scripting Tutorial-Steve Parker. I given my executing result for almost every ...
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系统相关 时间：
2020-06-26 22:22:32
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75
