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"area = base * altura / 2" "base = b, altura = h" #area = 0 #b = int #h = int #b = int(input("Introduce la base ")) #h = int(input("Introduce la base ")) #area = b * h/2 #print("el area del triangulo es ",area) def triangulo(num1, num2): result = 0 result = num1 * num2/2 return result ...
# This program uses a dictionary as a deck of cards. def main(): # Create a deck of cards. deck = create_deck() # Get the number of cards to deal. num_cards = int(input('How many cards should I deal? ')) # Deal the cards. deal_cards(deck, num_cards) # The create_deck function r...
#CAHPTER 08 PYTHON PROJECT 06 def sortStringByChar(data) : data.sort(reverse=True) return data data = ['apel', 'rambutan', 'jeruk'] dataTersort = sortStringByChar(data) print("Data baru terurut dengan karakter terbanyak ke terkecil : ", dataTersort)
#CHAP. 05 PRAK. 01 LATIHAN 03 bahasaIndo = int(input("Nilai Bahasa Indonesia : ")) mat = int(input ("Nilai Matematika : ")) ipa = int(input("Nilai IPA : ")) print ("---------------------------") if (bahasaIndo < 0) or (bahasaIndo > 100): print("Maaf input anda tidak valid") elif(mat < 0) or (mat > 100): print...
#CHAP.05 PRAK.02 LATIHAN 05 from random import randint bil = randint(0,100) print("Hi.. Nama saya Mr.Lappie, saya telah memilih sebuah bilangan bulat secara acak antara 1 sampai dengan 100. Silahkan tebak ya..!!") tebakan = int(input("Tebakan Kamu :")) while True: if (tebakan > bil): print ("Yahhh teba...
#CAHPTER 08 PYTHON PROJECT 09 listBuah = {'apel':5000, 'jeruk':8500, 'mangga':7800, 'duku':6500} def jumlahBuah(): jumlah =int(input('Massukkan jumlah Kg yang diinginkan : ')) print("--------------------------------------------") print("Total Harga : ", listBuah.get(namaBuah, 0)*jum...
import re import re f1 = open('../../../datas/a.txt','r') strf1 = f1.read() print("原文件内容为:") print(strf1) strf1_list = strf1.split(' ') f1.close() # 由于原文件需要被替换的单词都是大写的英文单词 # 使用正则表达式找出原文件中所有将被替换的单词 replist = re.findall(r'[A-Z]{2,}',strf1) print("原文件中将被替换的单词为:") print(replist) print() for rep in replist: inputstr = ...
def gcd(x,y): if y == 0: return x else: return gcd(y,x%y) def lcm(x,y): return x*y/gcd(x,y) x,y = map(int, input().split()) n = int(gcd(x,y)+lcm(x,y)) print(n)
import re select = re.compile(r"^[a-zA-Z]+@[a-zA-Z]+.[a-zA-Z]") while True: mail = input() if select.findall(mail): print("Yes") else: print("No")
def is_nice(line): vowels = 0 doubels = False baddies = False for i in range(len(line) - 1): if line[i] in 'aeiou': vowels += 1 if line[i] == line[i + 1]: doubels = True if line[i] + line[i + 1] in ('ab', 'cd', 'pq', 'xy'): baddies = True ...
import csv open_file = open('alunos.csv','r') file_csv = csv.reader(open_file,delimiter=';') for [data,nome,status] in file_csv: print('{} - {} - {}'.format(data,nome,status))
import cadquery as cq # These can be modified rather than hardcoding values for each dimension. circle_radius = 50.0 # Radius of the plate thickness = 13.0 # Thickness of the plate rectangle_width = 13.0 # Width of rectangular hole in cylindrical plate rectangle_length = 19.0 # Length of rectangular hole in cylind...
#Exercise 6: Rewrite the program that prompts the user for a list of numbers and prints out the maximum and minimum of the numbers at #the end when the user enters “done”. Write the program to store the numbers the user enters in a list and use the max() and min() functions to compute the maximum and minimum numbers af...
#::::::::::::: Built-in practice: enumerate() ::::::::::::::::::::::::::::::::::::::::::: # Rewrite the for loop to use enumerate indexed_names = [] for i, name in enumerate(names): index_name = (i,name) indexed_names.append(index_name) print(indexed_names) # Rewrite the above for loop using list comprehens...
import random #for randint function import time #for sleep function print("\n\n\t\t\tWelcome to ROCK , PAPER and SCISSORS") time.sleep(2) #two sec delay def print_value(choice): #function to print value val={1:"ROCK",2:"PAPER",3:"SCISSORS"} # values stored in dictionary time.sleep...
#!Python3 import tables, buildings class Unit: # all the units will have following attributes, but it is thought that the workers will be the most numerous, so # -> the default values are set for workers. def __init__(self, owner, text_name): self.owner = owner self.alive = True s...
#!/usr/bin/python3 # Problem 6 # --------- # Sum square difference # ===================== # The sum of the squares of the first ten natural numbers is, # 1^2 + 2^2 + ... + 10^2 = 385 # # The square of the sum of the first ten natural numbers is, # (1 +2 + ... + 10)^2 = 55^2 = 3025 # # Hence the difference betw...
class Stack: def __int__(self): self.arr = [] def push(self, val): self.arr = [val] + self.arr if len(self.mins) == 0: self.mins = [val] else: if self.mins[0] >= val: self.mins = [val] def pop(self): v = self.arr[0] se...
class Solution: def isValid(self, s: str) -> bool: brakets = {"(": ")", "[": "]", "{": "}"} stack = [] def check(s): n = len(s) if n == 0: if len(stack) == 0: return True else: return False ...
# Definition for singly-linked list. class ListNode: def __init__(self, x): self.val = x self.next = None class NodeLib: def createList(self, arr) -> ListNode: if len(arr) == 0: return None node = ListNode(arr[0]) node.next = self.createList(arr[1:]) ...
def translate(board, row_or_col): return [ board[x] for x in row_or_col if board[x] ] def how_many_missing(board, row_or_col): return len([ board[x] for x in row_or_col if not(board[x]) ]) def possibilities(board, sum_contraints, pos): left = set(range(1,10)) for (row_or_col, sum_) in sum_constraints:...
import pandas as pd #read csv into file under variable cali cali = pd.read_csv("COVID-19_Case_Geography_CA.csv", dtype = str) #print columns print("Columns" , list(cali.columns)) #drop any columns with missing variables using .dropna() on cali cali.dropna() #drop all columns except 'case_month', 'res_state', 'sta...
def double(T): return([i*2 for i in T]) tup=(1,2,3,4,5) print(double(tup))
# Python code to demonstrate the working of # degrees() and radians() # importing "math" for mathematical operations import math a = math.pi/6 b = 30 # returning the converted value from radians to degrees print ("The converted value from radians to degrees is : ", end="") print (math.degrees(a)) # returning...
n = int(input("enter the age of the person:")) if(n >= 18): print("the person is eligible to vote !!!") else: print("the person is not eligble to vote ") years = 18 - n print("you should wait for atleast " + str(years) + " years")
class ABC: cvar=0 def __init__(self,var): ABC.cvar+=1 self.var=var print("Object value is : ",var) print("Class value is : ",ABC.cvar) obj1=ABC(10) obj2=ABC(20) obj3=ABC(30) obj4=ABC(40) obj5=ABC(50)
d={1:'ravi',2:'raju',3:'sudheer',4:'sekhar'} print("1st name is"+d[1]) print("2nd name is"+d[2]) print(d) print(d.keys()) print(d.values())
num=[1,2,3,4,10] for index, i in enumerate (num): print(num)
n = int(input("enter the annual income : ")) if(n<=150000): print("the person is eligible for scholarship") else: print("the person is not eligible for scholarship")
import pickle # This program asks the user for some animals, and stores them. # Make an empty list to store new animals in. animals = [] # Create a loop that lets users store new animals. new_animal = '' while new_animal != 'quit': print("\nPlease tell me a new animal to remember.") new_animal = input("Enter...
from random import randint def randArray(): array = [] for i in range(0, 10): randnum = randint(1, 100) array.append(randnum) return array def bubleSort(array): for i in range(0, len(array)): for j in range(i+1, len(array)): if array[j] < array[i]: ...
# -*- coding: utf-8 -*- """ Created on Thu Mar 2 11:14:15 2017 @author: Brandon Mitchell blm150430 Assignment 1, Q1 """ """ Body mass index (BMI) is a measure of health based on weight. It can be calculated by taking your weight in kilograms and dividing it by the square of your height in meters. Write a program t...
# -*- coding: utf-8 -*- """ Created on Fri Jan 27 19:39:26 2017 @author: bmitchell """ ## Display the number from 1 to 5 num = 0 while num <= 5: print(num) num += 1 # Increment by 1.
# def is define - how to start function #def greeting(): # print("Hello, Chris!") #greeting() # def greeting(n): # print('Hello {}!'.format(n)) # name = input('What is your name?: ') # # greeting(name) # from math import sqrt as square_root # # def sqrt(): # return 'I live to drink soda!' # # print(sqrt(...
class Human (): count = 0 countwoman = 0 countman = 0 def __init__(self, name, lastname, age, uni, gender ): self.name = name self.lastname = lastname self.age = age self.university = uni self.gender = gender Human.count += 1 self.gen() def gen...
# -*- coding: utf-8 -*- amount = float(input('Enter a amount:')) inrate = float(input('Enter a inrate:')) period = int(input('Enter a period:')) value = 0 year = 1 while year <=period: value = amount + (amount * inrate) print('every year {} rate {:.2f}'.format(year,value)) amount = value year += 1
# 类 class People(object): def __init__(self,name,age): self.name = name self.age = age self.jump() def walk(self): print("{} 在走路".format(self.name)) def eat(self): print("{}在吃饭".format(self.name)) def jump(self): print("{}跳了一下".format(self.name)) xiaoer = People("小儿",12) wangwu = ...
print("." * 10) print("a" + "d" + "s" + "e" + "p", end=" ") formatter = "{}{}{}{}" print(formatter.format("hs","as","ds","dd")) print(formatter.format(1,2,3,9)) print(formatter.format(formatter,formatter,formatter,formatter))
# 字典 states = { 'asd' : ' ASD', 'S' : 's', 'qwewe' : 'QWEWE', 'wewewe' : 'WEWEWE' } cities = { "s" : "city", "P" : "provice", "CO" : "Contry", "asd" : "s" } cities["C"] = "ccccc" cities["AA"] = "AAAAA" print("cities",cities) print("asdada",cities[states["S"]]) # 利用key来获取value print(cities["s"]) prin...
# Number Guess v1.0.0 print("") print("-------------------------Welcome To Number Guess!---------------------------------------") print("In this game, you think of a number from 1 through n and I will try to guess what it is.") print("After each guess, enter h if my guess is too high, l if too low, or c if correct.") ...
# Importing required packages import re from nltk.stem.snowball import SnowballStemmer # nltk library stemmer algorithm for English language stem_eng = SnowballStemmer('english') list_of_specialCharacters = [' ',',','$','-','//','..',' / ',' \\ ','.'] def string_stemmer(s): stem_resultList = [] for word in s....
class Fraction: """ This class represents one single fraction that consists of numerator and denominator """ def __init__(self, numerator, denominator): """ Constructor. Checks that the numerator and denominator are of correct type and initializes them. :param numerator...
def main(): i = 1 performance_time_list = [] while i <= 5: performance_time = float(input("Enter the time for performance %d: " % i)) performance_time_list.append(performance_time) i += 1 performance_time_list.remove(max(performance_time_list)) performance_time_list.remove(m...
def get_input_lines(): lines = "" que = " " while que != '': que = input() lines = lines + que + " " return lines def get_single_line(words, line_length): line = "" words_rest = [] words_rest += words for item in words: if len(line)+len(item) <= line_lengt...
def main(): print("Give 5 numbers:") element_list = [] for i in range(0, 5, 1): number = int(input("Next number: ")) element_list.append(number) print("The numbers you entered, in reverse order:") for element in element_list[::-1]: print(element) main()
def main(): print("Give 5 numbers:") element_list = [] for i in range(0, 5, 2): number = int(input("Next number: ")) if number > 0: element_list.append(number) print("The numbers you entered that were greater than zero were:") for element in element_list: print(e...
# Introduction to Programming # Geometry from math import pi # square function will take the required dimension from user, # and check if it is greater than zero or not, # and which then prints the circumference # and area of the shape to two decimal places. def square(): dimension = 0 while dimension < 1: ...
import math import numpy as np def is_multiple(x, k): """ Tests if x is a multiple of k. Parameters ---------- x : int or float k : int or float Returns ------- boolean True if n is a multiple of k. Raises ------ ZeroDivisionError if k is 0 or 0.0 TypeErro...
def is_leap_year( year ): if year%4 == 0 and year%100 != 0: return True elif year%100 == 0 and year%400 == 0: return True else: return False def find_leap_years(start_year,end_year): years=[] for i in range( start_year, end_year+1 ): if is_leap_year(i): years.append((i,1)) else: years.append((i,...
def collatz(start,print_numbers): if print_numbers: print(start) total=start chain_length=1 while total != 1: if total%2 == 0: total/=2 else: total=total*3+1 if print_numbers: print(total) chain_length+=1 if print_numbers...
import math as math def nCr( n , r ): if n < r: return 0 # nCr: n!/((n-r)!r!) divisor = math.factorial(n) print "Divisor: "+str(divisor) denominator = math.factorial(n-r)*math.factorial(r) print "Denominator: "+str(denominator) return divisor/denominator def nPr( n , r ): # n...
""" Name: Vu Le Nguyen Phuong Date:18/01/2020 Brief Project Description: My small project to store the list of movies. I have add extra functionality including sort by ascending and descending order and search movie from the list :) GitHub URL:https://github.com/phuong16122000/Movie-To-WatchA2 """ # TODO: Create yo...
#!/usr/bin/env python """ DESCRIPTION This script is for reorganizing and sorting given addresses and postal codes and sorting the strings into a more visual appealing format. AUTHOR Travis Vanos <Travis.vanos@gmail.com> LICENSE This script is in the public domain, free from copyrights or restrictio...
# tic-tac-toe game = [[0, 0, 0], [0, 0, 0], [0, 0, 0],] def game_board(player: int=0, row: int=0, column: int=0, just_display: bool=False): print(" a b c") if not just_display: game[row][column] = player for count, row in enumerate(game): print(count, row) game_bo...
#!/usr/bin/env python # -*- coding: utf-8 -*- # author: abekthink from python3 import ListNode class Solution: # 1st version: # def addTwoNumbers(self, l1: ListNode, l2: ListNode) -> ListNode: # p1, p2 = l1, l2 # head, tail = None, None # carry = 0 # while p1 or p2: # ...
#!/usr/bin/env python # -*- coding: utf-8 -*- # author: abekthink from python3 import List class Solution: def nextPermutation(self, nums: List[int]) -> None: """ Do not return anything, modify nums in-place instead. """ length = len(nums) for i in range(length - 1, 0, -1)...
#!/usr/bin/env python # -*- coding: utf-8 -*- # author: abekthink class Solution: # def strStr(self, haystack: str, needle: str) -> int: # i, m, n = 0, len(haystack), len(needle) # while i < m - n + 1: # j = 0 # while j < n and haystack[i + j] == needle[j]: # ...
import time import sys from random import randint # Delay printing def delay_print(s): for c in s: sys.stdout.write(c) sys.stdout.flush() time.sleep(0.1) class Pokemon: def __init__(self, name: str, poke_type: str, moves: list, health=100, level=1): self.name = name s...
from flask import Flask, render_template, request#, redirect, url_for import sqlite3 app = Flask(__name__) #x=0 #conn = sqlite3.connect("blog.db") #p ="create table posts(post_id integer, post_title text, post_author text, post_content text);" #comm = "create table comments(comment_id integer, comment_content text, c...
# -*- coding: utf-8 -*- """ Created on Sat Jan 30 19:49:49 2021 @author: Kinga Kalinowska """ import random class Card: def __init__(self,CardSuit,CardValue): self.Card_suit=CardSuit self.Card_value=CardValue def show(self): print("{} of {}".format(self.Card_value,self.Card_su...
# -*- coding: utf-8 -*- """ Created on Wed Jan 27 20:22:18 2021 @author: Komputer """ class FractionCheck(Exception): def __init__(self,message="Nominator and denominator should be integers"): self.message=message super().__init__(self.message) class Fraction: def __init__(self,top,bott...
class Hund: # Name in großge. CamelCase species = 'Canis lupus familiaris' # Klassenattri. zaehler = 0 # soll mitzählen wieviele Objekte gerade leben @classmethod def get_anzahl_hunde(cls): return cls.zaehler def __init__(self, name: str, age: str): # Zum Initialisieren self.n...
class Duck: def quack(self): print("quack quack") def fly(self): print("Flies through the sky") class WoodDuck: def quack(self): print("*silence*") def fly(self): print("Gets thrown") class Human: def quack(self): print("*awkward silence* *quack quack*") ...
class Pila(): def __init__ (self): self.cima = None self.contador = 0 def push(self, comida): snack = comida if (self.cima == None): self.cima = snack self.contador += 1 else: snack.abajo = self.cima self.cima = snack ...
def bitError(str1, str2): """ Compute the bit error rate between two strings. parameters: str1 (string): First string to be compared str2 (string): Second string to be compared return value: (int) the bit error rate of two strings in percent """ lenStr1 = len(str1) lenStr2 = le...
x = 5 y = 7 z = 10 if x%2 != 0: largest = x if y%2 != 0: if y > largest: largest = y if z%2 != 0: if z%2 != 0: largest = z print (largest)
class Exitgate: """CLASS FOR THE EXIT GATE. WHEN LEMMINGS HIT THE EXITGATE, THEY WILL DISSAPEAR FROM THE GAME AND ADD ONE SCORE UP ON THE "SAVED" SCOREBOARD """ def __init__ (self, myx, myy): #position attributes self.exitgate_x = myx self.exitgate_y = myy @property def ...
class Cell: """ THIS CLASS IS MADE TO CREATE A CELL OBJECT, IN ORDER TO CREATE THE BOARD WHERE THE GAME WILL RUN. IT HAS A X AND Y COORDINATE AND IT IS NOT VISIBLE IN THE GAME, ITS JUST A POSITIONAL REPRESENTATION OF ALL THE THINGS CONTAINED ON THE BOARD""" def __init__(self, x, y): # I...
import getpass import psycopg2 import time def newuser(): conn = psycopg2.connect("dbname=abc user=postgres password=postgres") cursor = conn.cursor() username = input("Enter Your Name : ") cursor.execute("SELECT username from test WHERE username=%s",(username,)) row = cursor.fetchall() if len(...
# Given a string, your task is to count how many palindromic substrings in this # string. # # The substrings with different start indexes or end indexes are counted as # different substrings even they consist of same characters. # # Example 1: # # Input: "abc" # Output: 3 # Explanation: Three palindromic strings: "a"...
# Given a string S and a string T, find the minimum window in S which will # contain all the characters in T in complexity O(n). # # Example: # # Input: S = "ADOBECODEBANC", T = "ABC" # Output: "BANC" # Note: # # If there is no such window in S that covers all characters in T, return the # empty string "". # If there...
# Given a string s that consists of only uppercase English letters, # you can perform at most k operations on that string. # # In one operation, you can choose any character of the string and # change it to any other uppercase English character. # # Find the length of the longest sub-string containing all repeating ...
# Reverse a linked list. class Node: def __init__(self, data=None): self.data = data self.next = None class LinkedList: def __init__(self): self.head = None def create_node(self, data): new_node = Node(data) new_node.next = self.head self.head = new_node def display_n...
# Given a 2d grid map of '1's (land) and '0's (water), count the number of # islands. An island is surrounded by water and is formed by connecting adjacent # lands horizontally or vertically. You may assume all four edges of the grid # are all surrounded by water. # # Example 1: # # Input: # 11110 # 11010 # 11000 # ...
import cv2 import numpy as np def main(): cap = cv2.VideoCapture(0) if cap.isOpened(): ret,fram = cap.read() print(ret) else: ret = False while ret: ret,fram = cap.read() hsv = cv2.cvtColor(fram,cv2.COLOR_BGR2HSV) #####################################...
def solution(number): sum = 0 for x in range(number): # Multiplos de 3 y 5 if x % 3 == 0 and x % 5 == 0: sum += x elif x % 3 == 0: sum += x elif x % 5 == 0: sum += x x -= 1 return(sum)
import xml.etree.ElementTree as ET #allows extraction of data from XML without worrying about #the rules of XML input = ''' <stuff> <users> <user x="2"> <id>001</id> <name>Chuck</name> </user> <user x="7"> <id>009</id> <name>Brent</name> </user> </users> </stuff> ''' stuff = ET.fro...
import sqlite3 conn = sqlite3.connect('music.sqlite3') cur = conn.cursor() ''' Insert rows into the table''' cur.execute('INSERT INTO Tracks (title, plays) VALUES (?, ? )', ('Thunderstruck', 20 )) cur.execute('INSERT INTO Tracks (title, plays) VALUES (?, ? )', ('My Way', 15)) conn.commit() #commit() writes data to ...
import matplotlib.pyplot as plt import numpy as np # creating a data col_count = 3 bar_width = .2 korea_scores = (554, 536, 538) canada = (518, 523, 525) china_scores = (613, 570, 580) france_scores = (495, 505, 499) # putting a data into visualization index = np.arange(col_count) k1 = plt.bar(index, korea_scores, ...
from Pessoas import Pessoas try: nome: str = str(input('Qual seu nome? ')) sobrenome: str = str(input('Qual seu sobrenome? ')) idade: int = int(input('Qual sua idade? ')) p = Pessoas(nome,sobrenome,idade) print("Seu nome é " + p.retornoNomeCompleto() + " e sua idade é "+str(p.idade)) except Excepti...
Frase = input("Ingrese una frase: ") for i in Frase: print(i)
#Datos de entrada dinero = int(input("Ingrese el dinero: ")) b10 = dinero//10000 dinero = dinero%10000 print("Billetes de 10.000:",b10) b5 = dinero//5000 dinero = dinero%5000 print("Billetes de 5.000:",b5) b1 = dinero//1000 dinero = dinero%1000 print("Billetes de 1.000:",b1) m500 = dinero//500 dinero = dinero%500 p...
largo = 10 res = range(largo) ################ inicio = 2 fin = 10 res = range(inicio,fin) ################# inicio = 5 fin = 20 incremento = 5 res = range(inicio,fin,incremento) for i in res: print(i)
def validar_nombre(nombre): if len(nombre)<6: return "El nombre de usuario debe contener al menos 6 caracteres" if len(nombre)>12: return "El nombre de usuario no debe contener más de 12 caracteres" if " " in nombre: return "El nombre no puede contener espacios" if nombre.isalpha...
preferencias = ['Tv','Cine','Paseo','Música','Teatro'] # recorrer forma 1 #for i in range(len(preferencias)): # print(preferencias[i]) # recorrer forma 2 #for x in preferencias: # print(x) ## Recorrer todos items de la lista e imprimir letra a letra cada items. ###Permite saber el largo de un elemento #print(...
print("Bienvenido al medidor de tornillos") tamano_tornillo = float(input("Ingrese el tamaño del tornillo a medir: ")) if tamano_tornillo >= 1 and tamano_tornillo<3: print("Pequeño") elif tamano_tornillo >= 3 and tamano_tornillo<5: print("Mediano") elif tamano_tornillo >= 5 and tamano_tornillo<6.5: print(...
horas = int(input("Ingrese las horas de trabajo: ")) pagoxhora = int(input("Ingrese el valor de la hora: ")) if horas > 45: sueldo = horas*pagoxhora*1.5 else: sueldo = horas*pagoxhora print("El sueldo es",sueldo)
#función para calcular el area de un triangulo # Def <- Indica que es una función def AreaTriangulo(base, altura): area = (base*altura)/2 return area ########################################## baseEntrada = int(input("Ingresa la base: ")) alturaEntrada = int(input("Ingresa la altura: ")) area = AreaTriangul...
lista1 = [] for i in lista1: print(i) lista2 = [1,2,3,4,5,6,7,8,9] print("Antes:",lista2) lista3 = ["Uno",1,"Dos",2,"Tres",3] #lista2[0] = 99 #print("Despues 1:",lista2) #lista2[4] = lista2[7] #print("Despues 2:",lista2) print(lista1) lista1.append(100) print(lista1)
numero = int(input("Ingresa un número ")) print(range(numero)) for i in range(numero,100,5): print (i)
cont = 1 while cont: print(cont) cont+=1 if cont==25: break cont = 0 while cont < 10: cont+=1 if cont%2==0: continue print(cont, end=" ") print("Es impar")
"""LibSPN image visualization functions.""" from libspn.data.image import ImageShape import numpy as np import matplotlib as mpl import matplotlib.pyplot as plt def show_image(image, shape, normalize=False): """Show an image from flattened data. Args: image (array): Flattened image data shap...
""" 给定一个数组,它的第 i 个元素是一支给定股票第 i 天的价格。 如果你最多只允许完成一笔交易(即买入和卖出一支股票),设计一个算法来计算你所能获取的最大利润。 注意你不能在买入股票前卖出股票。 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 """ '''Solution for max min in list: [..min..max..] -> max - min [..max...min..] : ...
""" 给定一个带有头结点 head 的非空单链表,返回链表的中间结点。 如果有两个中间结点,则返回第二个中间结点。   示例 1: 输入:[1,2,3,4,5] 输出:此列表中的结点 3 (序列化形式:[3,4,5]) 返回的结点值为 3 。 (测评系统对该结点序列化表述是 [3,4,5])。 注意,我们返回了一个 ListNode 类型的对象 ans,这样: ans.val = 3, ans.next.val = 4, ans.next.next.val = 5, 以及 ans.next.next.next = NULL. 示例 2: 输入:[1,2,3,4,5,6] 输出:此列表中的结点 4 (序列化形式:[4,5,...
""" 给你一个整数数组 nums,将该数组升序排列。   示例 1: 输入:nums = [5,2,3,1] 输出:[1,2,3,5] 示例 2: 输入:nums = [5,1,1,2,0,0] 输出:[0,0,1,1,2,5] 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/sort-an-array 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 """ # Quick sort import random class Solution: def sortArray(self, nums: list) -> list: ...
class Solution: """ @param str: An array of char @param offset: An integer @return: nothing """ def rotateString(self, str, offset): # write your code here if str == []: return str l = len(str) #5 #print(l) if offset < 0 : return "I...
""" 在给定的网格中,每个单元格可以有以下三个值之一: 值 0 代表空单元格; 值 1 代表新鲜橘子; 值 2 代表腐烂的橘子。 每分钟,任何与腐烂的橘子(在 4 个正方向上)相邻的新鲜橘子都会腐烂。 返回直到单元格中没有新鲜橘子为止所必须经过的最小分钟数。如果不可能,返回 -1。 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/rotting-oranges 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 """ from queue import Queue class Solution: def orangesRotting(se...
""" 输入一个正整数 target ,输出所有和为 target 的连续正整数序列(至少含有两个数)。 序列内的数字由小到大排列,不同序列按照首个数字从小到大排列。 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 """ # math question from math import floor, sqrt class Solution: def findContinuousSequence(self, t...
""" 给定一个字符串,逐个翻转字符串中的每个单词。   示例 1: 输入: "the sky is blue" 输出: "blue is sky the" 示例 2: 输入: "  hello world!  " 输出: "world! hello" 解释: 输入字符串可以在前面或者后面包含多余的空格,但是反转后的字符不能包括。 示例 3: 输入: "a good   example" 输出: "example good a" 解释: 如果两个单词间有多余的空格,将反转后单词间的空格减少到只含一个。 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/reverse-...
""" 给定一棵二叉树,你需要计算它的直径长度。一棵二叉树的直径长度是任意两个结点路径长度中的最大值。这条路径可能穿过根结点。 注意:两结点之间的路径长度是以它们之间边的数目表示。 """ # Wrong # Definition for a binary tree node. class TreeNode: def __init__(self, x): self.val = x self.left = None self.right = None class Solution: def diameterOfBinaryTree(self, root): ...