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# author: @ijkilchenko | |
# MIT License | |
def words_over_vocab(vocab, n): | |
return _words_over_vocab(vocab, '', n) | |
def _words_over_vocab(vocab, word, n): | |
if len(word) == n: | |
yield word | |
else: |
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#!/usr/bin/python3 | |
# author: @ijkilchenko | |
# MIT License | |
import math | |
import hashlib | |
import random | |
from collections import defaultdict | |
def base10_to_baseB(num, B): |
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import random | |
import math | |
from hashlib import md5 | |
class MyHashTable(object): | |
def __init__(self, hash_functions, len_table): | |
self.hash_functions = hash_functions | |
self.len_table = len_table | |
self.table = [-1]*self.len_table |
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import random | |
class Node(): | |
def __init__(self, data=None): | |
self.data = data | |
self.parent = None | |
self.left = None | |
self.right = None | |
self.load = 1 # Assumed to be a leaf when initialized. |
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import random | |
import numpy as np | |
#from cvxpy import * | |
def p(M): | |
"""Method to pretty print our matrix. """ | |
for i in range(len(M)): | |
print(' '.join([str(num) for num in M[i]])) | |
def generate_M(N=3, max_touches=2): |
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import random | |
import copy | |
def make_exchange_matrix(N=3, seed=2017): | |
'''In this function, we make an exchange matrix | |
for testing purposes by randomly picking exchange | |
rates from the first currency to all the other | |
currencies. ''' |
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syntax enable | |
colorscheme monokai | |
set number | |
set ruler | |
set swapfile | |
set dir=~/tmp | |
set tabstop=4 |
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from sklearn.datasets import make_classification | |
from sklearn.cross_validation import train_test_split | |
from itertools import product | |
import numpy as np | |
import pandas as pd | |
class NeuralNetwork: | |
g = np.vectorize(lambda z: 1 / (1 + np.exp(-z))) | |
log = np.vectorize(lambda x: np.log(x)) |
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from math import log10, floor | |
def r(num): | |
num_digits = floor(log10(num) + 1) | |
return num//10 + (num % 10)*(10**(num_digits-1)) | |
def does_a_divide_b(a, b): | |
if b % a == 0: | |
return True | |
else: |
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import random | |
from math import sqrt, floor | |
""" | |
Guessing game. When playing, the game picks a random value from i to j | |
and each time a guess g is made, g is added to the previous running cost | |
of playing this game. | |
""" | |
cache = {} | |
class Game: |
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