SAT问题
import math
import random
import time
#SAT问题def main(n):sum []s []m int(math.pow(2,n))for i in range(0,m):for j in range(0,n):a random.randint(0,1)s.append(a)if s not in sum:sum.append(s)s []rel []for A1 in sum:for A2 in sum:if (1 in A1) an…
从网上寻找小说斗破苍穹,爬取并保存。
import requests
import time
import re
from lxml import etree
from bs4 import BeautifulSoup
headers {User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.81 S…
三种方法求最大公约数
import time
#连续整数检测
def calculation(a,b):x a % bwhile (x ! 0):a bb xx a % breturn b
#分解质因数
def primefactor(a,b):i 2j 1while((i<a) and (i<b)):if(((a % i) 0) and ((b % i) 0)):a a / ib b / ij j * ielse:i i 1r…
import numpy as np
import matplotlib.pyplot as plt
# 得到差商表def get_meandiff_tabel(X, Y):n len(X)A np.zeros([n, n])for i in range(0, n):A[i][0] Y[i]for j in range(1,n):for i in range(j,n):A[i][j] (A[i][j-1] - A[i-1][j-1])/(X[i]-X[i-j])return AX [0.…