There are two variants of SQL statement execution defined in SAP note 2000002 – FAQ: SAP HANA SQL Optimization. The difference is how the where condit ...
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数据库 时间：
2020-09-15 20:58:55
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57
一直都想知道acquire中block参数的含义,今天查阅相关文档,如下别有一番洞天 Connection and Producer Pools Default Pools Kombu ships with two global pools: one connection pool, and one ...
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其他好文 时间：
2020-09-14 19:10:24
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37
You are installing a billboard and want it to have the largest height. The billboard will have two steel supports, one on each side. Each steel suppor ...
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其他好文 时间：
2020-08-19 19:53:32
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69
Zhang3 a participant of IPhO (Immortal Physics Olympiad). The $0^\mathrm$ problem in the contest is as follows. There are two balls that weigh \(a\) k ...
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其他好文 时间：
2020-07-30 22:15:00
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110
Suppose Andy and Doris want to choose a restaurant for dinner, and they both have a list of favorite restaurants represented by strings. You need to h ...
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其他好文 时间：
2020-07-29 15:41:09
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86
power_two.cpp内容如下： #include <iostream> using namespace std; bool is_power_of_two(unsigned int n) { return (n && !(n & (n-1))); } int main(int argc, ch ...
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其他好文 时间：
2020-07-29 15:07:26
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62
Given two strings s1, s2, find the lowest ASCII sum of deleted characters to make two strings equal. Example 1: Input: s1 = "sea", s2 = "eat" Output: ...
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其他好文 时间：
2020-07-28 14:45:21
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310
Given two words word1 and word2, find the minimum number of steps required to make word1 and word2 the same, where in each step you can delete one cha ...
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其他好文 时间：
2020-07-28 14:04:15
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77
Given the root of a binary tree and an integer distance. A pair of two different leaf nodes of a binary tree is said to be good if the length of the s ...
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其他好文 时间：
2020-07-27 15:58:17
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93
题意 给你两个长度为 \(n\) 的串 \(a,b\) 求 \(a,b\) 两序列各任取一数相加形成的$n^2$个和的异或和 $1 \le n \le 2 \times 10^5$ $0 \le a_i \le 2^{28}$ 传送门 思路 按位考虑。对于第$i$位，令 \(x=2^i\)，所有数对 ...
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其他好文 时间：
2020-07-26 22:51:31
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66
