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Channel name was changed to «Programming Challenges»
13 Apr 2025, 08:51
Programming Challenges
13 Apr 2025, 08:48
Palindrome Checker with WildcardTime: 45 minutes Difficulty: Easy/Medium Languages: Any==================== Given a string that may contain lowercase English letters and a special wildcard character '', implement a function that determines if the string is a palindrome. The wildcard character '' can match any single character.For example: - "racecar" is a palindrome. - "rcecar" is a palindrome ('' matches 'a'). - "rcecr" is a palindrome (both '' match 'a'). - "hello" is not a palindrome. - "hllo" is not a palindrome (no single character can make it a palindrome). - "a" is a palindrome ('' matches 'a'). - "" is a palindrome ('' matches itself or any single character).Write a function is_wildcard_palindrome(text: str) -> bool that returns True if the string is a palindrome considering the wildcard, and False otherwise.Programming Challenges
18 Jan 2024, 15:04
https://t.me/prograchallenges?boostHey everybody, please help by boosting this channel 🥰TelegramProgramming ChallengesBoost this channel to help it unlock additional features.Programming Challenges
17 Aug 2023, 11:02
FOURIER TRANSFORM +========+ Time: 1 hour Difficulty: Medium Languages: Any +========+ Given a sequence of complex numbers, implement a function that performs a Fourier transform on the sequence using the Fast Fourier Transform algorithm +========+ Please answer to this message with your solution 🙂Programming Challenges
15 Aug 2023, 11:03
A SEARCH +========+ Time: 2 hours - 3 hours Difficulty: Hard Languages: Any +========+ Given a graph represented by an adjacency matrix and a starting and goal vertex, implement a function that finds the shortest path from the starting vertex to the goal vertex using A search algorithm +========+ Please answer to this message with your solution 🙂Programming Challenges
13 Aug 2023, 10:54
BINARY SEARCH +========+ Time: 30 minutes Difficulty: Easy Languages: Any +========+ Given a sorted list of integers, implement a function that performs a binary search on the list and returns the index of the element if found or -1 if not found +========+ Please answer to this message with your solution 🙂Programming Challenges
11 Aug 2023, 10:53
K-MEANS CLUSTERING +========+ Time: 2 hours - 3 hours Difficulty: Hard Languages: Any +========+ Given a set of points in two-dimensional space, implement a function that performs k-means clustering on the set, using the Lloyd's algorithm +========+ Please answer to this message with your solution 🙂Programming Challenges
9 Aug 2023, 10:53
HEAP SORT +========+ Time: 1 hour Difficulty: Medium Languages: Any +========+ Given a list of integers, implement a function that performs a heap sort on the list +========+ Please answer to this message with your solution 🙂Programming Challenges
7 Aug 2023, 10:53
FIBONACCI SEQUENCE +========+ Time: 30 minutes Difficulty: Easy Languages: Any +========+ Given a number n, implement a function that returns the nth number in the Fibonacci sequence using recursion +========+ Please answer to this message with your solution 🙂Programming Challenges
5 Aug 2023, 10:52
TOWER OF HANOI +========+ Time: 30 minutes Difficulty: Easy Languages: Any +========+ Given a tower of n discs stacked in decreasing order of size and 3 pegs, implement a function that solves the tower of Hanoi puzzle by moving the discs from the first peg to the last peg with the help of the middle peg. +========+ Please answer to this message with your solution 🙂Programming Challenges
3 Aug 2023, 10:52
Dijkstra's Shortest Path +========+ Time: 2 hours - 3 hours Difficulty: Hard Languages: Any +========+ Given a directed graph represented by an adjacency matrix and a source vertex, implement a function that finds the shortest path from the source vertex to all other vertices using Dijkstra's shortest path algorithm +========+ Please answer to this message with your solution 🙂Programming Challenges
1 Aug 2023, 10:52
QUICKSORT +========+ Time: 1 hour Difficulty: Medium Languages: Any +========+ Given a list of integers, implement a function that performs a quicksort on the list +========+ Please answer to this message with your solution 🙂Programming Challenges
30 Jul 2023, 10:52
BUBBLE SORT +========+ Time: 30 minutes Difficulty: Easy Languages: Any +========+ Given a list of integers, implement a function that performs a bubble sort on the list +========+ Please answer to this message with your solution 🙂Programming Challenges
28 Jul 2023, 10:51
HUFFMAN CODING +========+ Time: 30 minutes - 1 hour Difficulty: Medium Languages: Any +========+ Given a string of characters, implement a function that performs Huffman coding on the string to compress it. +========+ Please answer to this message with your solution 🙂Programming Challenges
26 Jul 2023, 10:51
GRADIENT DESCENT +========+ Time: 1 hour - 2 hours Difficulty: Hard Languages: Any +========+ Given a set of data points and a cost function, implement a function that finds the minimum of the cost function using gradient descent algorithm. +========+ Please answer to this message with your solution 🙂Programming Challenges
24 Jul 2023, 10:51
DEPTH-FIRST SEARCH +========+ Time: 2 hours - 3 hours Difficulty: Hard Languages: Any +========+ Given a graph represented by an adjacency list, implement a function that performs a depth-first search of the graph, and returns a list of the visited nodes. +========+ Please answer to this message with your solution 🙂Programming Challenges
22 Jul 2023, 10:51
BFS +========+ Time: 30 minutes - 1 hour Difficulty: Medium Languages: Any +========+ Given a graph represented by an adjacency list and a starting vertex, implement a function that performs a breadth-first search of the graph and returns a list of the visited nodes +========+ Please answer to this message with your solution 🙂Programming Challenges
20 Jul 2023, 10:49
PRIM'S ALGORITHM +========+ Time: 1 hour - 2 hours Difficulty: Hard Languages: Any +========+ Given an undirected graph represented by an adjacency matrix, implement a function that finds the minimum spanning tree using the Prim's algorithm +========+ Please answer to this message with your solution 🙂Programming Challenges
18 Jul 2023, 10:49
GREEDY ALGORITHM +========+ Time: 30 minutes - 1 hour Difficulty: Medium Languages: Any +========+ Given a set of items, each with a value and a weight, and a knapsack with a maximum weight capacity, implement a function that finds the maximum value that can be placed in the knapsack using a greedy algorithm. +========+ Please answer to this message with your solution 🙂Programming Challenges
14 Jul 2023, 10:49
BELLMAN-FORD +========+ Time: 2 hours - 3 hours Difficulty: Hard Languages: Any +========+ Given a directed graph represented by an adjacency matrix and a source vertex, implement a function that finds the shortest path from the source vertex to all other vertices using the Bellman-Ford algorithm. +========+ Please answer to this message with your solution 🙂
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