two-digit integer
• wabdelh
0 likes • Feb 26, 2023
Python
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# @return a list of strings, [s1, s2]def letterCombinations(self, digits):if '' == digits: return []kvmaps = {'2': 'abc','3': 'def','4': 'ghi','5': 'jkl','6': 'mno','7': 'pqrs','8': 'tuv','9': 'wxyz'}return reduce(lambda acc, digit: [x + y for x in acc for y in kvmaps[digit]], digits, [''])
# question3.pyfrom itertools import productV='∀'E='∃'def tt(f,n) :xss=product((0,1),repeat=n)print('function:',f.__name__)for xs in xss : print(*xs,':',int(f(*xs)))print('')# this is the logic for part A (p\/q\/r) /\ (p\/q\/~r) /\ (p\/~q\/r) /\ (p\/~q\/~r) /\ (~p\/q\/r) /\ (~p\/q\/~r) /\ (~p\/~q\/r) /\ (~p\/~q\/~r)def parta(p,q,r) :a=(p or q or r) and (p or q or not r) and (p or not q or r)and (p or not q or not r)b=(not p or q or r ) and (not p or q or not r) and (not p or not q or r) and (not p or not q or not r)c= a and breturn cdef partb(p,q,r) :a=(p or q and r) and (p or not q or not r) and (p or not q or not r)and (p or q or not r)b=(not p or q or r ) and (not p or q or not r) and (not p or not q or r) and (not p or not q or not r)c= a and breturn cprint("part A:")tt(parta,3)print("part B:")tt(partb,3)
"""Take screenshots at x interval - make a movie of doings on a computer."""import timefrom datetime import datetimeimport ffmpegimport pyautoguiwhile True:epoch_time = int(time.time())today = datetime.now().strftime("%Y_%m_%d")filename = str(epoch_time) + ".png"print("taking screenshot: {0}".format(filename))myScreenshot = pyautogui.screenshot()myScreenshot.save(today + "/" + filename)time.sleep(5)## and then tie it together with: https://github.com/kkroening/ffmpeg-python/blob/master/examples/README.md#assemble-video-from-sequence-of-frames#"""import ffmpeg(ffmpeg.input('./2021_01_22/*.png', pattern_type='glob', framerate=25).filter('deflicker', mode='pm', size=10).filter('scale', size='hd1080', force_original_aspect_ratio='increase').output('movie.mp4', crf=20, preset='slower', movflags='faststart', pix_fmt='yuv420p').run())"""
from collections import defaultdictdef combine_values(*dicts):res = defaultdict(list)for d in dicts:for key in d:res[key].append(d[key])return dict(res)d1 = {'a': 1, 'b': 'foo', 'c': 400}d2 = {'a': 3, 'b': 200, 'd': 400}combine_values(d1, d2) # {'a': [1, 3], 'b': ['foo', 200], 'c': [400], 'd': [400]}
list_1 = [1,2,3,4,5,6,7,8,9]cubed = map(lambda x: pow(x,3), list_1)print(list(cubed))#Results#[1, 8, 27, 64, 125, 216, 343, 512, 729]
import anytree as atimport random as rm# Generate a tree with node_count many nodes. Each has a number key that shows when it was made and a randomly selected color, red or white.def random_tree(node_count):# Generates the list of nodesnodes = []for i in range(node_count):test = rm.randint(1,2)if test == 1:nodes.append(at.Node(str(i),color="white"))else:nodes.append(at.Node(str(i),color="red"))#Creates the various main branchesfor i in range(node_count):for j in range(i, len(nodes)):test = rm.randint(1,len(nodes))if test == 1 and nodes[j].parent == None and (not nodes[i] == nodes[j]):nodes[j].parent = nodes[i]#Collects all the main branches into a single tree with the first node being the rootfor i in range(1, node_count):if nodes[i].parent == None and (not nodes[i] == nodes[0]):nodes[i].parent = nodes[0]return nodes[0]