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# -*- coding:utf-8 -*- class ListNode: def __init__(self, x): self.val = x self.next = None class Solution: # 返回ListNode def ReverseList(self, pHead): # write code here pReversedHead = None pNode = pHead pPrev = None while(pNode != None): ...
# -*- coding:utf-8 -*- class Solution: def VerifySquenceOfBST(self, sequence): # write code here if not sequence: return False root = sequence[-1] left = [] right = [] # 在二叉搜索树中左子树节点的值小于根节点的值 for i in range(len(sequence)): if sequence[i...
import speech_recognition as sr from gtts import gTTS import os import playsound import requests import time import random import wikipedia import webbrowser def hearing(): r = sr.Recognizer() voice_data = " " with sr.Microphone() as source: print("Listening: ") audio = r.lis...
#By Prathyusha Theerdhala import random from time import sleep choice=["Charmander","Bulbasaur","Squirtle"] cpu=random.choices(choice) player=False while player ==False: print("Welcome to the Pokémon Battleground!") print("\nAre you ready to choose your Pokémon?") player=str(input("Which Pokémon do you want to ch...
class Botilleria: def __init__(self,marca,litros,precio): self.marca = marca self.litros = litros self.precio = precio def __str__(self): return "{} de {} litro, tiene un precio de {} pesos.".format(self.marca,self.litros,self.precio) class Cerveza(Botilleria): tipo = "...
str=input("Enter word") c=0 n=input("enter letter to be count") for item in str: if item!=n: continue else: c=c+1 print(c)
from abc import ABC,abstractmethod class shape(ABC): @abstractmethod def area(self): return 0 class rectange(): def __init__(self,l,b): self.l=l self.b=b def area(self): return self.l*self.b class square(): def __init__(self,s): self.s=s def ...
list = [2, 4, 6, 8, 10] for item in list: if item > 4: print("grater then 2") list2 = ['Elton', 'Souza'] for name in list2: if not name == "Elton": print(name)
""" 4. Given dictionary representing a student name as a key and corresponding value is a grade which he obtained in different subjects. WAP update each dict value with average score obtained by each student respectively. scores = {Student1: [65, 68, 59, 52, 69, 65, 55, 59], Student2: [60, 64, 60, 60, 88, 64, 68, ...
""" 13. Given a string of even length and print the output as string contains last half added with first half of the given string """ Input_str = raw_input("Enter a given length string: ") length = len(Input_str) print length num = 0 first = ' ' last = ' ' for ch in Input_str: if ((length/2)-1) > num: ...
#!/usr/bin/env python import json,sys json_file = open(sys.argv[1], "r+") doc = json.load(json_file) keys = sys.argv[2].split('.') def search(d, keys): if len(keys) == 1: return d[keys[0]] else: return search(d[keys[0]], keys[1:]) print search(doc, keys)
# Given a matrix representation of plot of land, # find the sizes of all the ponds in the matrix # 0 indicates water. Pond is the region of water connected vertically, horizontally, or diagonaly def pond_region(grid, x, y): print(x,y) if x < 0 or y < 0 or x >= len(grid) or y >= len(grid[0]): return 0 ...
''' find the k smallest integers froma given array''' ''' Solution 1: Sort the array and return the first k elements Solution 2: Use a BST and do in order traversal to find first k elements Solution 3: Selection rank algorithm Selection Rank 1. Pickarandomelementinthearrayanduseitasa"pivot:'Partitionelementsaroundthe...
# given two sorted arrays find the median of these two sorted arrays (combined) ''' solution: Median is the middle element 1. divide the arrays as left part and right part 2. criteria for the left part and right part (includes both A and B's left part) a. len(left_part) = len(right_part) b. max(left_part) <= m...
# implement multiply, subtract and divide operations for integers # use only the add operator import os def negate(num): neg = 0 if num < 0: newsign = 1 else: newsign = -1 while (num != 0): neg += newsign num += newsign return neg def subtract(a, b): ret...
### peaks and valleys # sort an input array into an alternating sequence of peaks and valleys import os import sys def swap(arr, left, right): temp = arr[left] arr[left] = arr[right] arr[right] = temp # Approach One: # Sort the array and swap every element with its right neighbor starting index 1 and i...
''' given an array of number and a value, find all subsequences that add up to that value ''' # NP complete problem Subset sum # Dynamic programming can also be used import os import numpy as np def isSubsetSumDP(array, sum): n = len(array) # The value of subset[i][j] will be true if there is a subset of...
# you are given an array of integers (both +ve and -ve). Find the contiguous sequence with the largest sum # idea is to sum up subsequences of positive and negative numbers # example: (2, 3, -8, -1, 2, 4, -2, 3)'s sum array is (5, -9, 6, -2, 3) # now examine this array from first element # 1. take 5 as maxSum and sum....
# a=[3,34,1,55,23,49] # print(34 in a) # a =(True and False) # b =(True and True) # c =(False or True) # c1 =(True or False) # print(a,b,c1,c) list1=[] list2=[] list3=list1 if(list1==list2): print(True) else: print(False) if(list1 is list2): print(True) else: print(False) if(list1 is l...
a = 50 b = 100 avg =(a+b)/2 avg = (int(avg)) c = ("the average between a and b is:") print (c,avg) print (type(c),type(avg))
sent=('ahsan','omer','king') a = (input("Enter a word you want to find:\n")) if(a.lower in sent): print("it is in the list") else: print("it is not in the list")
letter='''Dear NAME DATE From "Dear Omar Ahsan Khan, from abc house we are promoting you for your performance this year our regards have a good day. Thank you,from bill''' Name = input('your name') Date = input('date') From =...
# use python3 import sys import threading import queue sys.setrecursionlimit(10**7) # max depth of recursion threading.stack_size(2**27) # new thread will get stack of such size class Tree: def __init__(self, index, depth=None): self.val = index self.child = [] self.depth = depth d...
import matplotlib #绘制一个plot折线图,取别名plt import matplotlib.pyplot as plt # %matplotlib inline #绘制y = x^2 (x,1,2,3,4...)/列表自身具有索引【0....】/数据为列表 squares = [x**2 for x in range(1,10)] #绘图/ # plt.plot(squares) # plt.show() #改变线条的样式,线条的粗细linewidth plt.plot(squares,linewidth=2) plt.show() #给图标题标题大小 fontsize,图中写中文:...
#Embedded file name: eve/common/script/planet\surfacePoint.py """ Surface point """ import math MATH_2PI = math.pi * 2 class SurfacePoint: """ Represents a point on the surface of a sphere, both in cartesian and spherical coordiantes. A surface point can be created by specifying the cartesian coordinates: ...
import unittest from ..node import Node class NodeTest(unittest.TestCase): def test_ctor(self): """Test some variants of the Node __init__ method""" node = Node("name", "data") self.assertEqual("name", node.name) self.assertEqual("data", node.data) node = Node("name", att...
import pandas as pd from topics import * from clean import stats def calc_age_stats(df): ''' Take in cleaned and processed data, remove cities with less than 50 data points Calculate statistics per city - display top 5 - % that advertise IG - % that advertise SC - % that mention Coivd - %...
from flask import Flask import json import os app = Flask(__name__) @app.route("/") def reverse_slicing(s): return s[::-1] input_str = 'ABç∂EF' if __name__ == "__main__": print('Reverse String using slicing =', reverse_slicing(input_str))
''' DEFAULT -- interpretter -- when there is no other constructor in a class No-arg -- user has defined a constructor without parameter paramaterized --user has defined a constructor with parameter max -- there will one contstructor in class -- last one ''' class Person : def method1(self,**a): sum =...
# This is created by sugan😎😍😀 '''First enter your equations and press run''' print("this program is created by sugan under MIT lisence 2.0") def find(a): num1 = a[0] # instead use x1 ,1 num2 = a[1] # y1 ,1 num3 = a[2] # c2 ,5 num4 = a[3] # x2 ,2 num5 = a[4] # y2 ,2 num6 = a[5] # c2 ,...
""" File: asteroids.py Original Author: Br. Burton Designed to be completed by others This program implements the asteroids game. """ import arcade import math import random from abc import ABC, abstractmethod import pyglet # These are Global constants to use throughout the game SCREEN_WIDTH = 1000 SCREEN_HEIGHT = 600...
""" File: ta10-solution.py Author: Br. Burton This file demonstrates the merge sort algorithm. There are efficiencies that could be added, but this approach is made to demonstrate clarity. """ from random import randint MAX_NUM = 100 def merge(left, right): left_i = 0 right_i = 0 result = [] while le...
count = {} with open("census.csv", "r") as f: for line in f: words = line.split(',') key = words[3] if key not in count: count[key] = 1 else: count[key] += 1 for key in count: print(count[key], "--", key)
import arcade SCREEN_WIDTH = 1080 SCREEN_HEIGHT = 600 class Point: def __init__(self): self.x = 0 self.y = 0 class Velocity: def __init__(self): self.dx = 0 self.dy = 0 class FlyingObjects: """ Creates class for Flying Objects. This is a base class for other fl...
print('What type of Dungeons and Dragons character are you? Answer this short personality test to find out.') birthday = str(input('Please enter your astrology sign, Ex. aquarius, sagittarius, et.,: ')) print() name_birth = ('Cupcake', 'Krusk', 'Gimble', 'Hennet', 'Tordek', 'Ragnara', 'Sandharrow', 'Eulad', 'Xerxe...
''' Society is an econmicics game/simulator in which the player can control meny aspects of life within a "society" of one hundered people. Consequences of a player's actions will be as real as possible. Title: Society Arthor: third-meow Date: ''' # ## # ''' Goals include tax low wage cut off include math for find l...
print('Hello world') def main(): pass #łańcuch znaków imie = "Adam" print (imie) print(type(imie)) print(type(5)) print(type(5.7)) print(type(True)) print(type(None)) # <class 'str'> # <class 'int'> # <class 'float'> # <class 'bool'> # <class 'NoneType'> print(imie[2]) imie ="Damam" imie = imie.lower() print(...
#!/usr/bin/env python import numpy as np import math as m def angle_between_vectors(va = 'vector1' , vb = 'vector2'): ''' Finds the angle between two vectors in degrees (Internal Function) Args: va: first vector numpy array [x, y, z] vb: second vector numpy array [x, y, z] Returns: Angle: angle between...
#!/usr/bin/env python def inverse_parabola(alpha, theta): ''' Applies Inverse Parabola Scalling Returns a number between 1 and 0.5 ''' return 1 - (2.0*alpha*alpha)/(theta*theta)
"""String""" import pprint def nicely_print(dictionary,print=True): """Prints the nicely formatted dictionary - shaonutil.strings.nicely_print(object)""" if print: pprint.pprint(dictionary) # Sets 'pretty_dict_str' to return pprint.pformat(dictionary) def change_dic_key(dic,old_key,new_key): """Change diction...
from random import randint from datetime import * import time def end_buble(buble): def wrap(b): print(f"{buble(b)}\n array is sorted by buble sort") return wrap def end_stupid(stupid): def wrap(data): print(f"""{stupid(data)}\narray is sorted by stupid sort""") return wrap def ti...
from sqlite3 import * #объект коонекта conn = connect("Exercise_DB.db") #Создание / Подключение к базе данных с указанным названием #Создание объекта курсора (уникальный указатель на данные) cursor = conn.cursor() #Создание таблици """ CREATE TABLE name_table (name_column_1, surname_column_2, age_column_3) """ #...
"""код_договора код_клиента код_кредита дата_выдачи сумма 1 ItSorce 23 04.10.2018 1000000 2 —odewars 3 17.01.2019 20000 3 ItCraft 17 31.12.2017 340000 4 SoftVerse 1 25.07.2020 900000 5 ItLand 44 06.06.2016 3000000 6 22 11.08.2011 440000 7 PostCode 22 830000 8 CraftSource 13 31.12.2017 340000 9 SoftVerse 1 25.07.2020 ...
def me(x,y): if x==y: print("Yup!!") else: print("nope!!") use_input = input("enter your favourite number:".upper()) user_input = input("enter your brother's favourite number:".upper()) me(use_input,user_input)
# Use gradient descent to build linear regression model for predicting # height, age, weight # output alpha, num_iters, bias, b_age, b_weight import pandas as pd import sys import numpy as np import csv from pandas import DataFrame learning_rates = [0.001, 0.005, 0.01, 0.05, 0.1, 0.5, 1, 5, 10] # add vector co...
#Text of challenge: "Have the function LetterCapitalize(str) take the #str parameter being passed and capitalize the first letter of each #word. Words will be separated by only one space." def LetterCapitalize(str): return str.title() print LetterCapitalize(raw_input())
#Using Python language, have the function FirstFactorial(num) take the num parameter being passed and return the factorial of it def FirstFactorial(num): factorial = 1 for i in range(1,num+1): factorial=factorial*i return factorial print FirstFactorial(raw_input())
import sys import datetime Feb = 2 TwentyNine = 29 def dayOfDate(date): days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"] dayNumber = date.weekday() return days[dayNumber] def checkLeapYear(year): if year % 4 == 0: if year % 100 == 0: ...
import math import sys import random def distance(city1, city2): return math.sqrt((city1[0] - city2[0]) ** 2 + (city1[1] - city2[1]) ** 2) def read_input(filename): with open(filename) as f: cities = [] for line in f.readlines()[1:]: # Ignore the first line. xy = line.split(',') ...
# -*- coding: utf-8 -*- def error(S,w): ''' renvoie l'erreur quadratique commis par le perceptron, avec le vecteur de pondération w, l'échantillon S. ''' err = 0 for i in range(len(S)): err += 0.5 * (S[i][1] - output_perceptron(S[i][0],w))**2 return err def errorDeriva...
is_male = False is_tall = False if is_male and is_tall: print("You are a male and tall or both") elif is_male and not(is_tall): print("Your are a male but not tall") elif not(is_male) and is_tall: print("Your are not a male but you are tall") else: print("You neither male or tall") # comparator> !=, ==...
def check(x): try: num2=int(x) #an to num den einai int den einai oyte to num2 ara epistrefei false calc(num2) return True except: return False def calc(y): a=2 #dinei mia timh diaforh toy 1 sth metavlhth a gia na ksekinhsei h diadikasia while a!=1: #oso o teli...
# https://www.hackerrank.com/contests/world-codesprint-8/challenges/prime-digit-sums import math import time primes = [] nav_map = {} # connect graph for groups of five soln_cache = [] # solution cache limit = 10 ** 9 + 7 # as per requirements def primesieve(n): primes = [] limit = int(n ** 0.5 + 1) ...
x=input('enter x') z= input('enter z') sum=x+z print(sum)
# Enter your code here. Read input from STDIN. Print output to STDOUT n = input() arr = [int(i) for i in raw_input().strip().split()] mean = float (sum(arr)) / n print mean def calc_median(input_list): sorted_list = sorted(input_list) l = len(sorted_list) if(l%2 == 0): med = float (sorted_list[l/2...
import turtle turtle.width(8) turtle.color("green") for i in range(18): turtle.penup() turtle.goto(0,0) turtle.seth(i*20) turtle.pendown() for j in range(5): turtle.circle(40,80) turtle.circle(-40,80)
n1 = 34 n2 = 34.4 n3 = 100 s1 = 'Hello' s2 = 'World' total_n = n1 + n2 + n3 print(total_n) n1 = n1 + 1 print(n1 + 1) n2 = n2 + 10 print(n2) n3 = n3 - 50 print(n3) n3 = n3 * 50 print(n3) n3 = n3 / 50 n1 += n1 + 1 print(n1) n2 += 10 print(n2) n3 *= 50 print(n3) n3 /= 50 print(n3) concat_string = s1 + s2 print(c...
from arrays import Array def mergeSort(lyst): # lyst list being sorted for i in xrange(1, 10) # copyBuffer temporary space needed during merge copyBuffer = Array(len(lyst)) mergeSortHelper(lyst, copyBuffer, 0, len(lyst) - 1) def mergeSortHelper(lyst, copyBuffer, low, high): ...
#Convolution applied on images #Edge Detection #download standard image #wget --quiet https://ibm.box.com/shared/static/cn7yt7z10j8rx6um1v9seagpgmzzxnlz.jpg --output-document bird.jpg #already downloaded #1. load image (.jpg format) #2. convert image to grayscale #3. convolve image with edge detector kernel, store r...
def authenticate(pwd1,pwd2): if (pwd1 != pwd2): return False else: return True def getName(): name = raw_input("Please Enter Your Name:\n") return name def getPassword(): pwd2 = raw_input("Please Enter Your Password:\n") return pwd2 if __name__=="__main__": usr=getName()...
import sys import csv str_max = [] def main(): # checks to validate usage argv = sys.argv argc = len(sys.argv) if argc != 3: print("Usage: dna.py input/File.csv input/File.txt") exit(1) # opens data file and saves the headers and number of headers with open(argv[1], "r") as df:...
lado=input("Ingrese el lado del cuadrado:") lado=int(lado) superficie= lado*lado print("La superficie el cuadrado es: ") print(superficie)
class Stack: def __init__(self): self.values = [] def isEmpty(self): Empty = False if self.values == []: Empty = True return Empty def push(self, value): self.values.append(value) def pop(self): return self.values.pop() def pee...
def add(tree, value): if tree == None: newNode = {"data":value, "left":None, "right":None} return newNode elif tree["data"] == value: return tree elif value < tree["data"]: tree["left"] = add(tree["left"], value) return tree elif value > tree["data"]: tree...
############################################### Linked list functions with recursion def createTestList(): lastNode = {"data":"C", "next":None} secondNode = {"data":"B","next":lastNode} firstNode = {"data":"A", "next":secondNode} return firstNode def linkedListToString(LL): stringResult = "|" ...
import pandas as pd import numpy as np import time from .neighborhoods import solution_generator, aux_neighborhoods, LS_neighborhoods from .auxiliaries import calculatecosts def VND(df, costs, n = 2, n1 = 10, n2 = 10, alpha = 0.3, nsol = 20): """ VND algorithm. Args: df: Dataframe that specifies...
import random import itertools values = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'Jack', 'Queen', 'King', 'Ace'] suits = ['Hearts', 'Diamonds', 'Spades', 'Clubs'] deck = list(itertools.product(values, suits)) def shuffle_deck(deck): count = 0 while count < len(deck): current = deck[random.rand...
int_list = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] for num in int_list: num = num + 1 print(num)
age = input('Enter your age: ') def define_age(age): age = int(age) if 3 <= age < 7: return 'Kindergarten' elif 7 <= age <= 18: return 'School' elif 18 < age <= 23: return 'College' else: return 'Some job' res = define_age(age) print(res)
# encoding-UTF-8 # AUTOR: José Antonio Vázquez Gabián # Este programa imprime tu indice de masa corporal #Calcula tu peso y estatura def calcularIMC (peso,estatura): x = (peso)/(estatura**2) return x def saberEstado(imc): if imc<18.5: p= ("Bajo Peso") if imc>=18.5 and imc<=25: p= ("Peso ...
################################################################################## # Step 1: Create tables in our database to hold trip info, pickups and dropoffs # # DEPRECATED: Initially wrote this to setup the backend. However, quickly found out that # Heroku uses Postgresql so used this to play with da...
# # When creating a camera you need to specify the map's width and height and the # screen's width and height. # # When you want to calculate the offset of everything call calculate_position() # with the player/character's x and y coordinates and it returns the camera's # coordinates. To use those the best idea (probab...
''' @author: whuan @contact: @file: lesson2.py @time: 2018/10/20 19:47 @desc:控制语句,文件操作 ''' # 条件语句 import math import time num = 5 if num == 3: print("3") elif num == 5: print("5") else: print("no") # 循环 a = 1 while (a <= 10): print(a) a += 1 else: print("结束") for letter in "Ilovepython": ...
# -*- coding: utf-8 -*- """ Created on Sat Aug 20 15:09:52 2016 @author: Kazuma Wittick """ maxMode = 0 array = [12, 3, 4, 5, 6, 7, 8, 9, 1, 4,4, 6, 2,1, 5, 76, 6, 6, 6 ] for i in array: getMode = array.count(i) if getMode > maxMode: maxMode = getMode modeNumber = i print modeNumber
exam_st_date = (11, 12, 2014) (day,month,year) = exam_st_date #it's tuple unpacking exercise :) how fun :) needed to refresh how to do it print("The examination will start from : ",day,"/",month,"/",year)
import os import sys from csv import reader class CompanyInfo(object): """ The company info is stored in it """ def __init__(self, company_name): """called when object isntance is created""" self.__company_price__list = [] self.__company_time_list = [] self.__name = company_name ...
# python3 import sys def compute_min_refills(distance, tank, stops): start = 0 noOfStops = 0 stops.append(distance) for i in range(len(stops)): if (start + tank) >= distance: return noOfStops for j in range(i, len(stops)): if (start + tank) < stops[j]: ...
from random import randint spock= int(1) lagarto= int(2) pedra= int(3) papel= int(4) tesoura= int(5) jogador_contagem=0 computador_contagem=0 jogador=0 computador=0 while computador_contagem<3 and jogador_contagem<3: computador= randint(1,5) jogador= int(input("Vamos jogar! Para isso, é necessário que você ...
from tkinter import * import wikipedia def search_me(): entery_value=e.get() text.delete(1.0,END) try: answer_value=wikipedia.summary(entery_value) text.insert(INSERT,answer_value) except: text.insert(INSERT,'please check your input or internet connection') scr=Tk() scr.tit...
import numpy as np from query import * from config import * def add_quotes(str): """Adds quotes on the end and returns the output""" return f'\'{str}\'' def csv_reader(address, list_size, quotes): """ Address is the csv file location, list_size is the size of the row in the table to be inserted,...
# Littel Machine Learning Test # # Using the popular Iris flower data set and sklearn along with Python # http://scikit-learn.org/stable/ # https://en.wikipedia.org/wiki/Iris_flower_data_set # The iris flower dataset is like the "hello world" program of datasets. # It's not meant to be used in practical applications,...
def main(): num = int(input("Enter a number: ")) if num % 2 == 0: print(f"{num} is even") else: print(f"{num} is odd") if __name__ == '__main__': main()
array = [] count = 0 try: n = int(input('Введите количество элементов в массиве: ')) for i in range(n): array.append(int(input('Введите элемент массива: '))) delta = int(input('Введите DELTA: ')) except ValueError: print('Ошибка, введите целое число') else: for j in range(len(array) - 1): ...
import turtle import datetime import time def draw_hour(t, hour): t.color("blue") t.width(3) t.right((360/12) * hour) t.forward(150) t.forward(-150) t.setheading(90) def draw_min(t, min): t.color("lightblue") t.width(3) t.right((360/60) * min) t.forward(150) t.forward(-150) t.setheading(90) d...
def is_sorted(string): """Returns True if string is sorted from least to greatest False otherwise.""" largest = 0 for char in string.lower(): if ord(char) > largest: largest = ord(char) else: return False return True print(is_sorted("abed")) def funny(asdf): p...
''' Write a function that will return the number of digits in an integer. ''' def len_of_int(number): ''' returns the number of digits in an integer ''' return len(str(number)) def remove_first_occurrence(substring, original_string): ''' returns string ''' return original_string.replace(substring, '',...
from random import randint while True: s = int(input('Отгадай число:')) a = randint(0, 11) # обращай внимание на предупреждения PEP8 # между значениями и операторами должен быть пробел # между именем функции и оператором вызова пробела нет if s > 10: print('Я загадываю числа от 1 до 10'...
## helper functiont o find nearest neightbor respect to extracted target phrase tokenized_lists = [nltk.pos_tag(word_tokenize(i)) for i in dataset['statement']] ## helper function to find nearest adjective respect to target phrase def search_adj(word_list, target, text_tag): """ Search for a part of speech (P...
import datetime def gettime(): return datetime.datetime.now() def take(k): if k==1: a=int(input("Enter 1 for Food and 2 for Exercise")) if b==1: value=input("Type here...") with open("Harry Food.txt","a") as op: op.write(str([str(gettime())])+":" +va...
import numpy as np ''' x + 2*y + z = 2 3*x + 8y + z = 12 4*y + z = 2 ''' A = np.matrix([[1,2,1], [3,8,1], [0,4,1]]) b = np.array([2,12,2]) # level 1: substract 2 * row1 from row2: E_2_1 = np.matrix([[1,0,0], [-3,1,0], [0,0,1]]) print('level1: E_1_1 * A:') u_2_1 = np.matmul(E_2_1, A) print(u_2_1)...
import unittest from mock import Mock from machine import Machine from ..node import Node from address import Address class AddressTest(unittest.TestCase): def setUp(self): self.m = Machine('foo') self.n = Node('TestNode') def test_make_machine_address(self): ''' An address it...
""" Node is defined as class node: def __init__(self, data): self.data = data self.left = None self.right = None """ def check_binary_search_tree_(root): return is_BST(root.left, -1, root.data) and is_BST(root.right, root.data, 10001) def is_BST(current_node, min_data, max_data): if current...
import numpy as np from sklearn.metrics import mean_squared_error from sklearn.neural_network.multilayer_perceptron import MLPRegressor import matplotlib.pyplot as plt from nn_regression_plot import plot_mse_vs_neurons, plot_mse_vs_iterations, plot_learned_function, \ plot_mse_vs_alpha, plot_bars_early_stopping_ms...
#In this program we are trying to answer question 2. which mainly involve creating a exponential distrubition then #"messing" it up by adding to it a number of uniform disturbition numbers. We will test when the exponential fit will no #longer be a valid approximation with the chi sqaure function. from ROOT import gRO...
r1 = int(input ("введи r1 ")) r2 = int(input ("введи r2 ")) r3 = int(input ("введи r3 ")) s1 = int(input ("введи s1 ")) s2 = int(input ("введи s2 ")) s3 = int(input ("введи s3 ")) x1 = r1/s1 x2 = r2/s2 x3 = r3/s3 if (x1>x2) and (x1>x3): print ('1') if (x2>x1) and (x2>x3): print ('2') if (x3>x1) and (x3>x...
n = int(raw_input("Please enter a number: ")) builder = "*" line = '' for amount in range(0, n): line = line + builder for x in range(0, n): print line def square(n): for i in xrange(0, n): print '*' * n n = int(raw_input("Enter a number: ")) square(n)
# 这个模块显示了类的继承顺序。 class A: def __init__(self): self.n = 2 def add(self, m): print('self is {0} @A.add'.format(self)) self.n += m class B(A): def __init__(self): self.n = 3 def add(self, m): print('self is {0} @B.add'.format(self)) super().add(m) ...
from double_queue import DoubleQueue class Node(object): """定义树的节点""" def __init__(self, item=None): self.item = item self.lchild = None self.rchild = None class Tree(object): def __init__(self): node = Node() self.root = node self.q = DoubleQueue() def ...
# This Program finds the smallest positive number # that is evenly divisible by all of the numbers from 1 to 20 from math import log, floor, sqrt def lcm(n, primes): limit = sqrt(n) # square root of n a = {} # exponents check = True i = 0 result = 1 while primes[i] <= n: a[i] = 1 ...
#!/usr/bin/env python # coding: utf-8 # ### References: # https://machinelearningmastery.com/how-to-perform-face-recognition-with-vggface2-convolutional-neural-network-in-keras/ # # https://github.com/rcmalli/keras-vggface/ # In[1]: import matplotlib.pyplot as plt import numpy as np import dlib import cv2 from s...