Dataset Viewer
Auto-converted to Parquet Duplicate
text
stringlengths
2
4.68M
id
stringlengths
14
185
metadata
dict
__index_level_0__
int64
0
1.49k
from __future__ import annotations class IIRFilter: r""" N-Order IIR filter Assumes working with float samples normalized on [-1, 1] --- Implementation details: Based on the 2nd-order function from https://en.wikipedia.org/wiki/Digital_biquad_filter, this generalized N-order functio...
Python/audio_filters/iir_filter.py/0
{ "file_path": "Python/audio_filters/iir_filter.py", "repo_id": "Python", "token_count": 1692 }
0
""" The nqueens problem is of placing N queens on a N * N chess board such that no queen can attack any other queens placed on that chess board. This means that one queen cannot have any other queen on its horizontal, vertical and diagonal lines. """ from __future__ import annotations solution = [] def is_safe(bo...
Python/backtracking/n_queens.py/0
{ "file_path": "Python/backtracking/n_queens.py", "repo_id": "Python", "token_count": 1156 }
1
# https://www.tutorialspoint.com/python3/bitwise_operators_example.htm def binary_xor(a: int, b: int) -> str: """ Take in 2 integers, convert them to binary, return a binary number that is the result of a binary xor operation on the integers provided. >>> binary_xor(25, 32) '0b111001' >>>...
Python/bit_manipulation/binary_xor_operator.py/0
{ "file_path": "Python/bit_manipulation/binary_xor_operator.py", "repo_id": "Python", "token_count": 621 }
2
#!/usr/bin/env python3 """Provide the functionality to manipulate a single bit.""" def set_bit(number: int, position: int) -> int: """ Set the bit at position to 1. Details: perform bitwise or for given number and X. Where X is a number with all the bits – zeroes and bit on given position – one....
Python/bit_manipulation/single_bit_manipulation_operations.py/0
{ "file_path": "Python/bit_manipulation/single_bit_manipulation_operations.py", "repo_id": "Python", "token_count": 933 }
3
from __future__ import annotations from collections.abc import Sequence from typing import Literal def compare_string(string1: str, string2: str) -> str | Literal[False]: """ >>> compare_string('0010','0110') '0_10' >>> compare_string('0110','1101') False """ list1 = list(string1) li...
Python/boolean_algebra/quine_mc_cluskey.py/0
{ "file_path": "Python/boolean_algebra/quine_mc_cluskey.py", "repo_id": "Python", "token_count": 2090 }
4
""" https://en.wikipedia.org/wiki/Autokey_cipher An autokey cipher (also known as the autoclave cipher) is a cipher that incorporates the message (the plaintext) into the key. The key is generated from the message in some automated fashion, sometimes by selecting certain letters from the text or, more commonly, by addi...
Python/ciphers/autokey.py/0
{ "file_path": "Python/ciphers/autokey.py", "repo_id": "Python", "token_count": 1796 }
5
""" Wikipedia: https://en.wikipedia.org/wiki/Enigma_machine Video explanation: https://youtu.be/QwQVMqfoB2E Also check out Numberphile's and Computerphile's videos on this topic This module contains function 'enigma' which emulates the famous Enigma machine from WWII. Module includes: - enigma function - showcase of f...
Python/ciphers/enigma_machine2.py/0
{ "file_path": "Python/ciphers/enigma_machine2.py", "repo_id": "Python", "token_count": 3797 }
6
""" An RSA prime factor algorithm. The program can efficiently factor RSA prime number given the private key d and public key e. Source: on page 3 of https://crypto.stanford.edu/~dabo/papers/RSA-survey.pdf More readable source: https://www.di-mgt.com.au/rsa_factorize_n.html large number can take minutes to factor, the...
Python/ciphers/rsa_factorization.py/0
{ "file_path": "Python/ciphers/rsa_factorization.py", "repo_id": "Python", "token_count": 721 }
7
""" https://en.wikipedia.org/wiki/Image_texture https://en.wikipedia.org/wiki/Co-occurrence_matrix#Application_to_image_analysis """ import imageio.v2 as imageio import numpy as np def root_mean_square_error(original: np.ndarray, reference: np.ndarray) -> float: """Simple implementation of Root Mean Squared Erro...
Python/computer_vision/haralick_descriptors.py/0
{ "file_path": "Python/computer_vision/haralick_descriptors.py", "repo_id": "Python", "token_count": 6458 }
8
"""Convert a Decimal Number to an Octal Number.""" import math # Modified from: # https://github.com/TheAlgorithms/Javascript/blob/master/Conversions/DecimalToOctal.js def decimal_to_octal(num: int) -> str: """Convert a Decimal Number to an Octal Number. >>> all(decimal_to_octal(i) == oct(i) for i ... ...
Python/conversions/decimal_to_octal.py/0
{ "file_path": "Python/conversions/decimal_to_octal.py", "repo_id": "Python", "token_count": 522 }
9
ROMAN = [ (1000, "M"), (900, "CM"), (500, "D"), (400, "CD"), (100, "C"), (90, "XC"), (50, "L"), (40, "XL"), (10, "X"), (9, "IX"), (5, "V"), (4, "IV"), (1, "I"), ] def roman_to_int(roman: str) -> int: """ LeetCode No. 13 Roman to Integer Given a roman num...
Python/conversions/roman_numerals.py/0
{ "file_path": "Python/conversions/roman_numerals.py", "repo_id": "Python", "token_count": 767 }
10
""" Calculate the Product Sum from a Special Array. reference: https://dev.to/sfrasica/algorithms-product-sum-from-an-array-dc6 Python doctests can be run with the following command: python -m doctest -v product_sum.py Calculate the product sum of a "special" array which can contain integers or nested arrays. The pro...
Python/data_structures/arrays/product_sum.py/0
{ "file_path": "Python/data_structures/arrays/product_sum.py", "repo_id": "Python", "token_count": 1116 }
11
from copy import deepcopy class FenwickTree: """ Fenwick Tree More info: https://en.wikipedia.org/wiki/Fenwick_tree """ def __init__(self, arr: list[int] | None = None, size: int | None = None) -> None: """ Constructor for the Fenwick tree Parameters: arr (li...
Python/data_structures/binary_tree/fenwick_tree.py/0
{ "file_path": "Python/data_structures/binary_tree/fenwick_tree.py", "repo_id": "Python", "token_count": 3270 }
12
from __future__ import annotations from collections.abc import Iterator from dataclasses import dataclass @dataclass class TreeNode: """ A binary tree node has a value, left child, and right child. Props: value: The value of the node. left: The left child of the node. right: The ...
Python/data_structures/binary_tree/serialize_deserialize_binary_tree.py/0
{ "file_path": "Python/data_structures/binary_tree/serialize_deserialize_binary_tree.py", "repo_id": "Python", "token_count": 1558 }
13
from operator import delitem, getitem, setitem import pytest from data_structures.hashing.hash_map import HashMap def _get(k): return getitem, k def _set(k, v): return setitem, k, v def _del(k): return delitem, k def _run_operation(obj, fun, *args): try: return fun(obj, *args), None ...
Python/data_structures/hashing/tests/test_hash_map.py/0
{ "file_path": "Python/data_structures/hashing/tests/test_hash_map.py", "repo_id": "Python", "token_count": 1046 }
14
from __future__ import annotations from typing import Any class ContainsLoopError(Exception): pass class Node: def __init__(self, data: Any) -> None: self.data: Any = data self.next_node: Node | None = None def __iter__(self): node = self visited = [] while node...
Python/data_structures/linked_list/has_loop.py/0
{ "file_path": "Python/data_structures/linked_list/has_loop.py", "repo_id": "Python", "token_count": 785 }
15
"""Queue represented by a Python list""" from collections.abc import Iterable from typing import Generic, TypeVar _T = TypeVar("_T") class QueueByList(Generic[_T]): def __init__(self, iterable: Iterable[_T] | None = None) -> None: """ >>> QueueByList() Queue(()) >>> QueueByList([...
Python/data_structures/queue/queue_by_list.py/0
{ "file_path": "Python/data_structures/queue/queue_by_list.py", "repo_id": "Python", "token_count": 1626 }
16
# @Author : ojas-wani # @File : laplacian_filter.py # @Date : 10/04/2023 import numpy as np from cv2 import ( BORDER_DEFAULT, COLOR_BGR2GRAY, CV_64F, cvtColor, filter2D, imread, imshow, waitKey, ) from digital_image_processing.filters.gaussian_filter import gaussian_filter def...
Python/digital_image_processing/filters/laplacian_filter.py/0
{ "file_path": "Python/digital_image_processing/filters/laplacian_filter.py", "repo_id": "Python", "token_count": 1210 }
17
""" Finding the peak of a unimodal list using divide and conquer. A unimodal array is defined as follows: array is increasing up to index p, then decreasing afterwards. (for p >= 1) An obvious solution can be performed in O(n), to find the maximum of the array. (From Kleinberg and Tardos. Algorithm Design. Addison Wesl...
Python/divide_and_conquer/peak.py/0
{ "file_path": "Python/divide_and_conquer/peak.py", "repo_id": "Python", "token_count": 549 }
18
""" The number of partitions of a number n into at least k parts equals the number of partitions into exactly k parts plus the number of partitions into at least k-1 parts. Subtracting 1 from each part of a partition of n into k parts gives a partition of n-k into k parts. These two facts together are used for this alg...
Python/dynamic_programming/integer_partition.py/0
{ "file_path": "Python/dynamic_programming/integer_partition.py", "repo_id": "Python", "token_count": 742 }
19
""" You have m types of coins available in infinite quantities where the value of each coins is given in the array S=[S0,... Sm-1] Can you determine number of ways of making change for n units using the given types of coins? https://www.hackerrank.com/challenges/coin-change/problem """ def dp_count(s, n): """ ...
Python/dynamic_programming/minimum_coin_change.py/0
{ "file_path": "Python/dynamic_programming/minimum_coin_change.py", "repo_id": "Python", "token_count": 453 }
20
from typing import Any def viterbi( observations_space: list, states_space: list, initial_probabilities: dict, transition_probabilities: dict, emission_probabilities: dict, ) -> list: """ Viterbi Algorithm, to find the most likely path of states from the start and the expected ...
Python/dynamic_programming/viterbi.py/0
{ "file_path": "Python/dynamic_programming/viterbi.py", "repo_id": "Python", "token_count": 5966 }
21
# https://en.wikipedia.org/wiki/Ohm%27s_law from __future__ import annotations def ohms_law(voltage: float, current: float, resistance: float) -> dict[str, float]: """ Apply Ohm's Law, on any two given electrical values, which can be voltage, current, and resistance, and then in a Python dict return name/...
Python/electronics/ohms_law.py/0
{ "file_path": "Python/electronics/ohms_law.py", "repo_id": "Python", "token_count": 535 }
22
# https://www.investopedia.com from __future__ import annotations def simple_interest( principal: float, daily_interest_rate: float, days_between_payments: float ) -> float: """ >>> simple_interest(18000.0, 0.06, 3) 3240.0 >>> simple_interest(0.5, 0.06, 3) 0.09 >>> simple_interest(18000.0...
Python/financial/interest.py/0
{ "file_path": "Python/financial/interest.py", "repo_id": "Python", "token_count": 1501 }
23
from math import atan, cos, radians, sin, tan from .haversine_distance import haversine_distance AXIS_A = 6378137.0 AXIS_B = 6356752.314245 EQUATORIAL_RADIUS = 6378137 def lamberts_ellipsoidal_distance( lat1: float, lon1: float, lat2: float, lon2: float ) -> float: """ Calculate the shortest distance al...
Python/geodesy/lamberts_ellipsoidal_distance.py/0
{ "file_path": "Python/geodesy/lamberts_ellipsoidal_distance.py", "repo_id": "Python", "token_count": 1356 }
24
""" https://en.wikipedia.org/wiki/Breadth-first_search pseudo-code: breadth_first_search(graph G, start vertex s): // all nodes initially unexplored mark s as explored let Q = queue data structure, initialized with s while Q is non-empty: remove the first node of Q, call it v for each edge(v, w): // for w in g...
Python/graphs/breadth_first_search_2.py/0
{ "file_path": "Python/graphs/breadth_first_search_2.py", "repo_id": "Python", "token_count": 983 }
25
from collections import deque from math import floor from random import random from time import time # the default weight is 1 if not assigned but all the implementation is weighted class DirectedGraph: def __init__(self): self.graph = {} # adding vertices and edges # adding the weight is option...
Python/graphs/directed_and_undirected_(weighted)_graph.py/0
{ "file_path": "Python/graphs/directed_and_undirected_(weighted)_graph.py", "repo_id": "Python", "token_count": 9249 }
26
""" An implementation of Karger's Algorithm for partitioning a graph. """ from __future__ import annotations import random # Adjacency list representation of this graph: # https://en.wikipedia.org/wiki/File:Single_run_of_Karger%E2%80%99s_Mincut_algorithm.svg TEST_GRAPH = { "1": ["2", "3", "4", "5"], "2": ["1...
Python/graphs/karger.py/0
{ "file_path": "Python/graphs/karger.py", "repo_id": "Python", "token_count": 1168 }
27
""" This algorithm (k=33) was first reported by Dan Bernstein many years ago in comp.lang.c Another version of this algorithm (now favored by Bernstein) uses xor: hash(i) = hash(i - 1) * 33 ^ str[i]; First Magic constant 33: It has never been adequately explained. It's magic because it works better tha...
Python/hashes/djb2.py/0
{ "file_path": "Python/hashes/djb2.py", "repo_id": "Python", "token_count": 335 }
28
import unittest import pytest from knapsack import greedy_knapsack as kp class TestClass(unittest.TestCase): """ Test cases for knapsack """ def test_sorted(self): """ kp.calc_profit takes the required argument (profit, weight, max_weight) and returns whether the answer matc...
Python/knapsack/tests/test_greedy_knapsack.py/0
{ "file_path": "Python/knapsack/tests/test_greedy_knapsack.py", "repo_id": "Python", "token_count": 1016 }
29
import unittest import numpy as np import pytest def schur_complement( mat_a: np.ndarray, mat_b: np.ndarray, mat_c: np.ndarray, pseudo_inv: np.ndarray | None = None, ) -> np.ndarray: """ Schur complement of a symmetric matrix X given as a 2x2 block matrix consisting of matrices A, B and C...
Python/linear_algebra/src/schur_complement.py/0
{ "file_path": "Python/linear_algebra/src/schur_complement.py", "repo_id": "Python", "token_count": 1409 }
30
import numpy as np from sklearn.datasets import load_iris from sklearn.metrics import accuracy_score from sklearn.model_selection import train_test_split from sklearn.tree import DecisionTreeRegressor class GradientBoostingClassifier: def __init__(self, n_estimators: int = 100, learning_rate: float = 0.1) -> None...
Python/machine_learning/gradient_boosting_classifier.py/0
{ "file_path": "Python/machine_learning/gradient_boosting_classifier.py", "repo_id": "Python", "token_count": 1810 }
31
from sklearn.neural_network import MLPClassifier X = [[0.0, 0.0], [1.0, 1.0], [1.0, 0.0], [0.0, 1.0]] y = [0, 1, 0, 0] clf = MLPClassifier( solver="lbfgs", alpha=1e-5, hidden_layer_sizes=(5, 2), random_state=1 ) clf.fit(X, y) test = [[0.0, 0.0], [0.0, 1.0], [1.0, 1.0]] Y = clf.predict(test) def wrapper(y): ...
Python/machine_learning/multilayer_perceptron_classifier.py/0
{ "file_path": "Python/machine_learning/multilayer_perceptron_classifier.py", "repo_id": "Python", "token_count": 240 }
32
""" In a multi-threaded download, this algorithm could be used to provide each worker thread with a block of non-overlapping bytes to download. For example: for i in allocation_list: requests.get(url,headers={'Range':f'bytes={i}'}) """ from __future__ import annotations def allocation_num(number_of_bytes...
Python/maths/allocation_number.py/0
{ "file_path": "Python/maths/allocation_number.py", "repo_id": "Python", "token_count": 632 }
33
def chebyshev_distance(point_a: list[float], point_b: list[float]) -> float: """ This function calculates the Chebyshev distance (also known as the Chessboard distance) between two n-dimensional points represented as lists. https://en.wikipedia.org/wiki/Chebyshev_distance >>> chebyshev_distance([1...
Python/maths/chebyshev_distance.py/0
{ "file_path": "Python/maths/chebyshev_distance.py", "repo_id": "Python", "token_count": 302 }
34
# Eulers Totient function finds the number of relative primes of a number n from 1 to n def totient(n: int) -> list: """ >>> n = 10 >>> totient_calculation = totient(n) >>> for i in range(1, n): ... print(f"{i} has {totient_calculation[i]} relative primes.") 1 has 0 relative primes. 2 ha...
Python/maths/eulers_totient.py/0
{ "file_path": "Python/maths/eulers_totient.py", "repo_id": "Python", "token_count": 545 }
35
""" == Liouville Lambda Function == The Liouville Lambda function, denoted by λ(n) and λ(n) is 1 if n is the product of an even number of prime numbers, and -1 if it is the product of an odd number of primes. https://en.wikipedia.org/wiki/Liouville_function """ # Author : Akshay Dubey (https://github.com/itsAkshayDub...
Python/maths/liouville_lambda.py/0
{ "file_path": "Python/maths/liouville_lambda.py", "repo_id": "Python", "token_count": 500 }
36
from collections.abc import Callable def bisection(function: Callable[[float], float], a: float, b: float) -> float: """ finds where function becomes 0 in [a,b] using bolzano >>> bisection(lambda x: x ** 3 - 1, -5, 5) 1.0000000149011612 >>> bisection(lambda x: x ** 3 - 1, 2, 1000) Traceback (m...
Python/maths/numerical_analysis/bisection.py/0
{ "file_path": "Python/maths/numerical_analysis/bisection.py", "repo_id": "Python", "token_count": 721 }
37
def perfect_cube(n: int) -> bool: """ Check if a number is a perfect cube or not. >>> perfect_cube(27) True >>> perfect_cube(4) False """ val = n ** (1 / 3) return (val * val * val) == n def perfect_cube_binary_search(n: int) -> bool: """ Check if a number is a perfect cub...
Python/maths/perfect_cube.py/0
{ "file_path": "Python/maths/perfect_cube.py", "repo_id": "Python", "token_count": 565 }
38
""" Created on Thu Oct 5 16:44:23 2017 @author: Christian Bender This Python library contains some useful functions to deal with prime numbers and whole numbers. Overview: is_prime(number) sieve_er(N) get_prime_numbers(N) prime_factorization(number) greatest_prime_factor(number) smallest_prime_factor(number) get_p...
Python/maths/primelib.py/0
{ "file_path": "Python/maths/primelib.py", "repo_id": "Python", "token_count": 8106 }
39
""" This is a pure Python implementation of the P-Series algorithm https://en.wikipedia.org/wiki/Harmonic_series_(mathematics)#P-series For doctests run following command: python -m doctest -v p_series.py or python3 -m doctest -v p_series.py For manual testing run: python3 p_series.py """ from __future__ import annota...
Python/maths/series/p_series.py/0
{ "file_path": "Python/maths/series/p_series.py", "repo_id": "Python", "token_count": 591 }
40
def is_happy_number(number: int) -> bool: """ A happy number is a number which eventually reaches 1 when replaced by the sum of the square of each digit. :param number: The number to check for happiness. :return: True if the number is a happy number, False otherwise. >>> is_happy_number(19) ...
Python/maths/special_numbers/happy_number.py/0
{ "file_path": "Python/maths/special_numbers/happy_number.py", "repo_id": "Python", "token_count": 514 }
41
""" Calculates the nth number in Sylvester's sequence Source: https://en.wikipedia.org/wiki/Sylvester%27s_sequence """ def sylvester(number: int) -> int: """ :param number: nth number to calculate in the sequence :return: the nth number in Sylvester's sequence >>> sylvester(8) 113423713055...
Python/maths/sylvester_sequence.py/0
{ "file_path": "Python/maths/sylvester_sequence.py", "repo_id": "Python", "token_count": 443 }
42
# https://www.chilimath.com/lessons/advanced-algebra/cramers-rule-with-two-variables # https://en.wikipedia.org/wiki/Cramer%27s_rule def cramers_rule_2x2(equation1: list[int], equation2: list[int]) -> tuple[float, float]: """ Solves the system of linear equation in 2 variables. :param: equation1: list of ...
Python/matrix/cramers_rule_2x2.py/0
{ "file_path": "Python/matrix/cramers_rule_2x2.py", "repo_id": "Python", "token_count": 1347 }
43
""" Testing here assumes that numpy and linalg is ALWAYS correct!!!! If running from PyCharm you can place the following line in "Additional Arguments" for the pytest run configuration -vv -m mat_ops -p no:cacheprovider """ import logging # standard libraries import sys import numpy as np import pytest # type: ign...
Python/matrix/tests/test_matrix_operation.py/0
{ "file_path": "Python/matrix/tests/test_matrix_operation.py", "repo_id": "Python", "token_count": 1880 }
44
""" Squareplus Activation Function Use Case: Squareplus designed to enhance positive values and suppress negative values. For more detailed information, you can refer to the following link: https://en.wikipedia.org/wiki/Rectifier_(neural_networks)#Squareplus """ import numpy as np def squareplus(vector: np.ndarray,...
Python/neural_network/activation_functions/squareplus.py/0
{ "file_path": "Python/neural_network/activation_functions/squareplus.py", "repo_id": "Python", "token_count": 410 }
45
""" This is a pure Python implementation of the Graham scan algorithm Source: https://en.wikipedia.org/wiki/Graham_scan For doctests run following command: python3 -m doctest -v graham_scan.py """ from __future__ import annotations from collections import deque from enum import Enum from math import atan2, degrees f...
Python/other/graham_scan.py/0
{ "file_path": "Python/other/graham_scan.py", "repo_id": "Python", "token_count": 2295 }
46
def apply_table(inp, table): """ >>> apply_table("0123456789", list(range(10))) '9012345678' >>> apply_table("0123456789", list(range(9, -1, -1))) '8765432109' """ res = "" for i in table: res += inp[i - 1] return res def left_shift(data): """ >>> left_shift("012345...
Python/other/sdes.py/0
{ "file_path": "Python/other/sdes.py", "repo_id": "Python", "token_count": 1248 }
47
""" The root-mean-square speed is essential in measuring the average speed of particles contained in a gas, defined as, ----------------- | Vrms = √3RT/M | ----------------- In Kinetic Molecular Theory, gasified particles are in a condition of constant random motion; each particle moves at a completely different pa...
Python/physics/rms_speed_of_molecule.py/0
{ "file_path": "Python/physics/rms_speed_of_molecule.py", "repo_id": "Python", "token_count": 583 }
48
""" Project Euler Problem 2: https://projecteuler.net/problem=2 Even Fibonacci Numbers Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... By considering the terms in the Fibonacci sequenc...
Python/project_euler/problem_002/sol1.py/0
{ "file_path": "Python/project_euler/problem_002/sol1.py", "repo_id": "Python", "token_count": 375 }
49
""" Project Euler Problem 6: https://projecteuler.net/problem=6 Sum square difference The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ten natural numbers is, (1 + 2 + ... + 10)^2 = 55^2 = 3025 Hence the difference between the sum of...
Python/project_euler/problem_006/sol1.py/0
{ "file_path": "Python/project_euler/problem_006/sol1.py", "repo_id": "Python", "token_count": 391 }
50
End of preview. Expand in Data Studio
README.md exists but content is empty.
Downloads last month
9