## What is the Time Complexity of this code sample? like nested loop, but inner loop is a fixed number

result = [] for i in n: for jj in range(len(m)): if jj < 3: result.append((n,m)) else: jj = len(m) m, n are two python array inner loop is maximum 3 Thinking O(n)? because …

## Rotating the left the subtrees in an AVL Tree in python

A bit of a newbie to computing science. I have the basics for a binary tree in Python and I was studying some of the applications in an AVL tree: class TreeBinary: def __init__(self, data): …

## Return minimum “sub-DAG” generated from dictionary

I have an input data and some transformation functions t1, t2, t3, t4, t5, t6. Each of them requires some columns as input and outputs some columns. details = { ‘t1’: { input_cols = [‘C1’, …

## All possible combinations of numbers with rounding error matching sum

I have encountered one problem that I struggle to solve. There is a group of numbers that should match some given sum and the function should output all possible combinations. The length of the input …

## First occurrence of 1 in unsorted binary array

I am solving a problem to find the first 1 in an unsorted array of 1s and 0s. If any 1 is found program should return the index otherwise return -1. I would like to have divide and conquer solution …

## How to split some points in 3D based on some planes in python

In 3D space I have some points (x, y and z) and want to split them by reconstructing some exisiting planes. These are my simplified points: points=[[np.array([[20., 20., 60.], [20., 30., 65.], [55., …

## Maze pathfinding implementation (BFS) not giving correct path [closed]

I am trying to get the shortest path for a maze with a ball: the ball is rolling until it hits a wall. I use Dijkstra’s algorithm using heapq for priority queue. However, I get a non-optimal path as …

## Explain the logic of ‘Count of N-digit numbers with absolute difference of adjacent digits not exceeding K’ in Detail

Can someone please help me understand the logic of following Dynamic Programmming question Found this one at geeksforgeeks.com. I am unable to understand even after going through the answer provided. …

## how to find perpendicular projection of point on a surface in python

I have a bunch of points in 3d space (x,y and z) and want to find their perpendicular projection on a surface in python. My surface is created by four points using the following function: PRECISION = …

## Time limit exceeded in Python, code to check if a number can be reduced to “1”

I am working on this question: You are given a number N. You can perform the following operations on N any number of times: -If N is even, divide N by 2. -If N is odd, replace N with 3N+1. Your task …