Do you belong to the top 50% of Python coders? This article poses you 10 intermediate-level Python puzzles to test yourself. By solving all 10 Python puzzles and tracking your success rate, you will discover your exact Python skill level. How to do this? The idea of solving rated Python puzzles to measure your skill …
10 Best Python Puzzles to Discover Your True Skill Level Read More »
def find_path(graph, v_start, v_end, path_len=0): '''Is there a path between vertex v_start and vertex v_end?''' # Traverse each vertex only once if path_len >= len(graph): return False # Direct path from v_start to v_end? if graph[v_start][v_end]: return True # Indirect path via neighbor v_nbor? for v_nbor, edge in enumerate(graph[v_start]): if edge: # between v_start and …
[Basics Computer Science] A Recursive Pathfinder Algorithm in Python Read More »
Overcome the Knowledge Gap The great teacher Sokrates delivered complex knowledge by asking a sequence of questions. Each question was building on answers to previous questions provided by the student. This more than 2400 year old teaching technique is still in wide-spread use today. A good teacher opens a gap between their’s and the learner’s …
What is the output of this puzzle? import numpy as np # salary in ($1000) [2015, 2016, 2017] dataScientist = [133, 132, 137] productManager = [127, 140, 145] designer = [118, 118, 127] softwareEngineer = [129, 131, 137] a = np.array([dataScientist, productManager, designer, softwareEngineer]) print(a.shape[0]) print(a.shape[1]) Numpy is a popular Python library for …
Daily Data Science Puzzle: How to Get the Shape of a Numpy Matrix? Read More »
What is the output of this puzzle? # cancer-fighting foods cf = {"basil", "berries", "broccoli", "curcume", "garlic", "kale", "oranges", "seeds", "spinach", "sprouts"} # blood pressure reducing foods bf = {"bananas", "berries", "fish", "garlic", "kale", "red beets", "salmon", "seeds", "spinach", "yogurt"} print(len(cf & bf)) This puzzle is about two pieces of basic knowledge. The …
Daily Python Puzzle: How to Intersect two Sets in Python? Read More »
What is the output of this puzzle? # mg per 100g omega3_table = { "Salmon" : 2260, "Hering" : 1729, "Sardines" : 1480, "Flaxseeds" : 53400, "Eggs" : 400 } y = max(omega3_table, key=lambda x : omega3_table[x]) print(y) In this puzzle, we learn two things. First, we can retrieve the maximal element of …
Daily Python Puzzle: How to Find the Maximum in a Dictionary? Read More »
What is the output of this puzzle? # mg per 100g omega3_table = { "Salmon" : 2260, "Hering" : 1729, "Sardines" : 1480, "Flaxseeds" : 53400, "Eggs" : 400 } y = sorted(omega3_table, key=lambda x : omega3_table[x]) print(y[-1]) In this puzzle, we show how to sort a dictionary not after the keys but …
What is the output of this puzzle? meal_1 = "Meat" meal_2 = "Flaxseeds" meal_3 = "Marshmallows" healthyFoods = ["Kale", "Apple", "Strawberry", "Banana", "Flaxseeds"] def isHealthy(food): return food in healthyFoods m_1 = isHealthy(meal_1) m_2 = isHealthy(meal_2) m_3 = isHealthy(meal_3) print((not m_1 or m_2) and (meal_2 is "Flaxseeds") and isHealthy("Kale")) This puzzle shows two new …
How to Boost your Logic Skills (Series)? The “in” and “is” Keywords. Read More »
What is the output of this puzzle? # Logic Statements A = True # Temperatures are high B = True # Arctic ice is melting C = True # Sea levels are rising D = False # All regions become hot def follows(A,B): """ Returns True if 'A -> B' in words: 'B follows …
With Python’s map() function, you can apply a specific function to each element of an iterable. It takes two arguments: Function: Often it’s a lambda function that you can define on the fly. This is the function which you are going to apply on each element of an… Iterable: This is the iterable which you …
What is the output of this puzzle? wordlist = ["bitcoin", "cryptocurrency", "wallet"] crawled_text = ''' Research produced by the University of Cambridge estimates that in 2017, there are 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin. ''' s = crawled_text.split() res1 = True in map(lambda x: x …
The Any Function or How to Analyze Tweets in Python Read More »
What is the output of this puzzle? # popular instagram accounts # (millions followers) inst = {"@instagram": 232, "@selenagomez": 133, "@victoriassecret": 59, "@cristiano": 120, "@beyonce": 111, "@nike": 76} # popular twitter accounts # (millions followers) twit = {"@cristiano": 69, "@barackobama": 100, "@ladygaga": 77, "@selenagomez": 56, "@realdonaldtrump": 48} inst_names = set(filter(lambda x: inst[x]>60, inst.keys())) twit_names …
Set Operations, Lambda Functions, and Who Dominates Social Networks Read More »
