Yanni Papadakis ispapadakis
ispapadakis
/ pid_cartpole.py
Created
July 15, 2022 17:34
— forked from HenryJia/pid_cartpole.py
Solving OpenAI's Cartpole with a very simple PID controller in 35 lines
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| import numpy as np | |
| import gym | |
| def sigmoid(x): | |
| return 1.0 / (1.0 + np.exp(-x)) | |
| env = gym.make('CartPole-v1') | |
| desired_state = np.array([0, 0, 0, 0]) | |
| desired_mask = np.array([0, 0, 1, 0]) |
ispapadakis
/ biconnected.py
Last active
February 22, 2018 16:30
Biconnected Component Analysis of Undirected Graph (i.e., Bridges, Articulation Points) with Condensed Tree
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| class Graph(object): | |
| ''' | |
| Undirected Graph | |
| INPUT: | |
| Node Count: Int | |
| Edges: List in format [source, end] | |
| ''' | |
| def __init__(self,n,edges): | |
| self.nodeCount = n | |
| self.label = list(range(n)) |
ispapadakis
/ disjointSet.py
Last active
February 16, 2018 23:21
— forked from cocodrips/union_find.py
Union Find in Python with Path Compression and Balancing
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| ''' | |
| Implement a Disjoint Set Data Structure Using Path Compression and Balancing | |
| ''' | |
| class disjointSet: | |
| def __init__(self, n): | |
| self.parent = list(range(n)) | |
| self.rank = [0] * n | |
| def find(self, element): |
ispapadakis
/ binarySearchTree.py
Last active
April 11, 2018 13:16
— forked from jakemmarsh/binarySearchTree.py
a simple implementation of a Binary Search Tree in Python
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| # Extended the class to address previous comments: a) redundant inserts, b) delete method | |
| class Node: | |
| def __init__(self, val): | |
| self.val = val | |
| self.parent = None | |
| self.__left = None | |
| self.__right = None | |
| self.code = 3 | |