如果只有一次询问,可以分治,每次考虑跨过中点的情况。预处理左半边后缀or和,右半边前缀or和,然后用two pointers求。发现前、后缀or和只会变化O(log a)次。用线段树维护,记录每个区间的答案,以及前、后缀or和(这O(log a)个段)。push_up和查询时,还用two point... ...
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其他好文 时间:
2020-07-08 23:21:12
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78
You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ve ...
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其他好文 时间:
2020-07-08 09:14:32
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54
Algorithm: 70: Climbing Stairs (Easy) 167: Two Sum II - Input array is sorted (Easy) 120: Triangle (Medium) 经典动态规划,状态转移方程是自底向上,row[i] = row[i] + min(p ...
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其他好文 时间:
2020-07-05 17:18:19
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70
#一、论文相关信息 我看的论文是Fuzzing File Systems via Two-Dimensional Input Space Exploration,本文发表在IEEE Symposium on Security and Privacy 2019,第一作者Wen Xu,导师Taesoo ...
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其他好文 时间:
2020-07-05 17:16:24
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51
[JavaScript 中文开发手册generator.next (Generator) - JavaScript 中文开发手册The next() method returns an object with two properties done and value. You can also p... ...
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编程语言 时间:
2020-07-05 12:06:10
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122
1.特点: 有序, 在set的基础上,增加了一个值 2.常用命令:命令 以 z开头 my-redis:0>zadd myset 1 one ############### zadd 添加一个值 1 my-redis:0>zadd myset 2 two 1 my-redis:0>zadd myset ...
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其他好文 时间:
2020-07-05 00:15:25
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127
Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Input: [1,1,0,1,1,1] Output: 3 Explanation: The first two di ...
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其他好文 时间:
2020-07-04 13:47:53
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61
Deadline Yet Another Meme Problem *Two Arrays *Minimax Problem *Messenger Simulator A、Deadline 题意: 完成一个计划需要$d$天,但是可以优化,优化$x$天的情况下,完成时间是$x+\lceil \frac ...
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其他好文 时间:
2020-07-04 01:23:30
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65
Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function ...
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其他好文 时间:
2020-07-03 21:49:23
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77
Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Input: [1,1,0,1,1,1] Output: 3 Explanation: The first two di ...
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其他好文 时间:
2020-07-02 23:22:50
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99