题目描述：
The Trips table holds all taxi trips. Each trip has a unique Id, while Client_Id and Driver_Id are both foreign keys to the Users_Id at the Users table. Status is an ENUM type of ...
[LeetCode]Trips and Users
[LeetCode]Guess Number Higher or Lower II
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LeetCode.
题目描述：
LeetCode 375. Guess Number Higher or Lower II
We are playing the Guess Game. The game is as follows:
I pick a number from 1 to n. You have to guess which number I picked.
Every time you guess ...
[LeetCode]Guess Number Higher or Lower
作者是
发布于
在
LeetCode.
题目描述：
LeetCode 374. Guess Number Higher or Lower
We are playing the Guess Game. The game is as follows:
I pick a number from 1 to n. You have to guess which number I picked.
Every time you guess wrong ...
利用matplotlib绘制Logistic曲线
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Python.
标准Logistic函数为：
f(x) = 1 / ( 1 + exp(-x) )
其导函数为：
f'(x) = f(x) * ( 1 - f(x) )
下面使用matplotlib绘制逻辑斯蒂函数及其导函数的曲线。
Python代码：
import numpy as np
import matplotlib.pyplot as plt
a = np.linspace(-10, 10, 1000)
b = 1.0 / (1.0 + np.exp(-a ...
[LeetCode]Super Pow
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LeetCode.
题目描述：
Your task is to calculate ab mod 1337 where a is a positive integer and b is an extremely large positive integer given in the form of an array.
Example1:
a = 2 b = [3 ...