practice.py

import numpy as np
import random


'''
EX.1 @ practivepython.org

name=input("What is your name?")
age=input("How old are you?")

age_in_100_years=(2018-int(age))+100

print("Hello {}! You will turn 100 years old in {}".format(name,age_in_100_years))



EX.2 @ practivepython.org

num=input("Please enter a number: ")

if int(num)%2==0:
	print("This number is even:"))
else:
	print("This number is odd :(")

if int(num)%4==0:
	print("Also, this number is a multiple of 4!")
else:
	print("I checked if this was also a multiple of 4... it isn't.")



EX.3 @ practivepython.org

nums = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
nums_less=[]
num_pick=input("Pick a number: ")



for n in nums:
	if n < int(num_pick):
		nums_less.append(n)
	else:
		print("No number in this list was greater than {}".format(num_pick))
print(nums_less)

#one_line=[print(n) for n in nums if n<5 ]


EX.4 @ practivepython.org

l=[]
i=input("Please enter a number: ")
print('Here are all the divisors of {}.'.format(i))
for n in range(1,1000):
	if n%int(i)==0:
		l.append(n)
	else:
		pass
print(l)



#EX.5 @ practivepython.org
# Have to come back to this for random number generation.
# l=[]
for n in range(1,31):
	l.append(random.randint(0,2001))
print(l)

a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
c=[]
d=random.sample(xrange(1,101),20)
e=random.sample(xrange(1,101),25)
print(d)
print(e)
for i in d:
	if i not in e:
		#print(str(i) + " is not in b")
		c.append(i)
	else:
		pass
print(c)



#EX. 6 @ practivepython.org

user_str=input("Enter a string to check if palindrome: ")
rvrs_user_string=user_str[::-1]
if user_str==rvrs_user_string:
	print("This word is a palindrome!")
else:
	print("This word is NOT a palindrome!")
'''
'''


#EX. 7 @ practivepython.org

a = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
b=[print(n) for n in a if int(n)%2==0]





#EX. 8 @ practivepython.org

GAMES=5
P1_LIST=[]
P2_LIST=[]

print("\nThis game will be best of {} \n".format(GAMES))

while GAMES > 0:
	p1=input("The choice is yours, Player 1. Enter rock, paper, or scissors: \n")
	P1_LIST.append(p1)
	p2=input("The choice is now yours, Player 2. Enter rock, paper, or scissors: \n")
	P2_LIST.append(p2)
	if p1==p2:
		print('It is a draw!')
		GAMES-=1
	elif p1 == 'scissors' and p2 != 'rock':
		print('Player 1 wins!')
		GAMES-=1
	elif p1 == 'rock' and p2 != 'paper':
		print('Player 1 wins!')
		GAMES-=1
	elif p1 == 'paper' and p2 != 'scissors':
		print('Player 1 wins!')
		GAMES-=1
	else:
		print('Player 2 wins!')
		GAMES-=1
if GAMES <=0:
	print("GAME OVER!")

print('The plays\n')

print('Player 1 played: '+ str(P1_LIST))
print('Player 2 played: '+ str(P2_LIST))


#EX. 9 @ practivepython.org


for i in range(10):
	rand_number=random.randint(1,9)
	rand_guess=int(input("\nEnter a number between 1-9: \n"))
	if rand_number==rand_guess:
		print("\nYou guessed correctly!\n")
	elif rand_guess>rand_number:
		print("\nYour guess was too high!\n")
	elif rand_guess<rand_number:
		print("\nYour guess was too low!\n")
	else:
		pass

'''


#EX. 10 @ practivepython.org
# asks user for a number then determines whether it is a prime number. 

#def PrimeSearch(num):






#EX. 11 @ practivepython.org

# rand_list=[random.randint(1,100) for x in range(30)]
# print(rand_list)
# rand_list_2=[rand_list[0],rand_list[-1]]
# print(rand_list_2)
# rand_list_2=rand_list_2*15
# print(rand_list_2)
# rand_list_2=random.shuffle(rand_list_2)
# print(rand_list_2)



#EX. 13 @ practivepython.org
# Working with set()

# my_list=[random.randint(1,100) for n in range(15)]
# a=[1,1,1,1,5,5,5,5,7,7,7,7]
# def NoDuplicate(list):
# 	list=set(list)
# 	return list

# print(NoDuplicate(my_list))
# print(NoDuplicate(a))



#EX. 14 @ practivepython.org








#EX. 18 @ practivepython.org


''' random gen of 4 digit num. for eery correct guess in correct location they have a cow. for every wrong they get a bull. 



def square(num):
	return num*num 

if __name__ == "__main__":
	user_num = int(input("Give me a number: "))
	print(square(user_num))

'''
''' 
FUNCTIONS2PRACTICEUSING:

round(value, decimal places =0)
sum()
split('delimtier')

e.g. 


'''





'''
l = [random.randint(0,100) for i in range(30)] 
print(l)

print(sum(l))

s = "This is a random string that could contain valuable information that you want to tokenize data. This will be split based on a space delimeter."
s2=s.split(" ")
print(s2)

# This list method is very important in AI and NLP e.g. sentiment analysis. 
# 
'''


# Set problems
# Sets are kind of like lists but remove duplicate values. 


# s1=set([1,1,2,3,4,5,5]) # alternately: s1={1,2,3,4,5} ; to create empty set: set()
# print(s1)

# s1.add(6)
# print(s1)

# s1.update([6,7,8,9,10])
# print(s1)

# s1=s1.remove(9)
# print(s1)


# # But what  can we do with sets()  ?

# s1={1,2,3}
# s2={2,3,4}
# s3={3,4,5}

# s4 = s1.intersection(s2,s3)
# s5 = s1.difference(s2)
# print(s4)
# print(s5)






#EX. 20 @ practivepython.org


# rlist=[random.randint(1,100) for n in range(20)]
# rnum=int(input("Enter a number between 1-100: "))

# def func(list,num):
# 	list=set(list)
# 	if num in list:
# 		return True
# 	else:
# 		return False

# print(func(rlist,rnum))
# print(rlist)


#EX. 21 @ practivepython.org
# writing to a file
# be sure to close a file after creating and modifying it. 
# 

# with open('example.txt','w') as open_file:
# 	open_file.write('The first string...')
# 	# open_file.close() is not necessary because of the with statement


#EX. 25 @ practivepython.org

# MINIMUM = 0 
# MAXIMUM = 100 
# NUMBER = random.randint(MINIMUM,MAXIMUM)
# TRY = 0 
# RUNNING = True
# ANSWER = None

# while RUNNING:
# 	print("Is it {}? ".format(str(NUMBER)))
# 	ANSWER = input()
# 	# if 'no' in ANSWER.lower() and "lower" in ANSWER.lower():
# 	# 	NUMBER -= random.randint(1,4)
# 	# elif 'no' in ANSWER.lower() and "higher" in ANSWER.lower():
# 	# 	NUMBER += random.randint(1,4)
# 	if ANSWER.lower() == 'no':
# 		print("Higher or lower?")
# 		ANSWER = input()
# 		if ANSWER.lower() == 'higher':
# 			NUMBER += random.randint(1,4)
# 		elif ANSWER.lower() == 'lower':
# 			NUMBER -= random.randint(1,4)
# 	if ANSWER.lower() == 'yes':
# 		if TRY < 2:
# 			print("Yes! It only took me {}".format(str(TRY)))
# 		elif TRY < 2 and TRY < 10:
# 			print("Pretty well for a robot, {} tries".format(str(TRY)))
# 		else:
# 			print("That's so bad, {} tries.".format(str(TRY)))
# 		RUNNING = False
# 	TRY += 1

# print("GG") 

		
# binary search 

# RUNNING = True

# a = [1,3,5,4,2,3,5,6,8,9,19]
# a = set(a)
# print(a)
# print(int(len(a)/2))

# my_list = [random.randint(1,100) for n in range(1000)]
# my_list = set(my_list)
# my_list = list(my_list)

# target = 58
# guess = 0

# while not (len(my_list)==1 or guess==target):
# 	center_index = int(len(my_list)/2)
# 	guess = my_list[center_index]
# 	if guess > target:
# 		my_list=my_list[:center_index]
# 	elif guess < target:
# 		my_list=my_list[center_index:]
# 	if guess == target:
# 		print("Nailed it!")











#EX. 27 @ practivepython.org

# square=" --- \n|   |\n --- "

# def print_horiz_line():
# 	print(" --- " * board_size)

# def print_vert_line():
# 	print("|    " * (board_size + 1))

# if __name__ == "__main__":
# 	board_size=int(input('What size game board? '))

# 	for i in range(board_size):
# 		print_horiz_line()
# 		print_vert_line()
# 	print_horiz_line()




#EX. 28 @ practivepython.org

def findMax(num1,num2,num3):
	# l=[]
	# l = []
	# l.append(num1)
	# l.append(num2)
	# l.append(num3)
	# print(max(l))
	print(max(num1,num2,num3))

findMax(1,2,3)