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Recent questions tagged algorithm
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algorithm - Newton's Method for finding the reciprocal of a floating point number for division
I am trying to divide two numbers, a numerator N by a divisor D. I am using the Newton-Raphson method which ... . But is that standard practice? See Question&Answers more detail:os...
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algorithm - Python digest/hash for string similarity
I'm looking for an algorithm which can generate a short (fx 16 chars (not important) hashcode/digest from ... work. Any pointers appreciated. See Question&Answers more detail:os...
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algorithm - Solve small symmetric positive definite Ax = b on GPU only
I'm attempting to optimise an application in realtime 3D modelling. The compute part of the application runs ... BLAS libraries for example? See Question&Answers more detail:os...
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algorithm - Optimal filling of grid figure with squares
recently I have designed a puzzle for children to solve. However I would like to now the optimal solution. The problem is as ... 0,0,1,1,1,1]]; See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - in-place permutation of a array follows this rule
Suppose there is an array, we want to find everything in the odd index (index starting with 0), and move it to the ... -place and in O(n) time? See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - small cycle finding in a planar graph
I have a geometric undirected planar graph, that is a graph where each node has a location and no 2 edges cross, ... this? Will it even work? See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Detecting when matrix multiplication is possible
Here is an interesting problem that I encountered in a programming competition: Problem statement: Given the dimensions ... of the problem. See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm
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algorithm - Fast undo/redo for bitmap editor when memory is limited?
I'm trying to write a bitmap editor for a mobile device (i.e. a limited version of Photoshop). The user's ... can use to make my life easier? See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Efficiently computing the first 20-digit substring to repeat in the decimal expansion of Pi
Problem Pi = 3.14159 26 5358979323846 26 433... so the first 2-digit substring to repeat is 26. What is ... of Pi. Many thanks everyone! See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Enabling soundex/metaphone for non-English characters
I've been studying soundex, metaphone and other string search techniques the past few days, and in my ... handle non-English alphabets?' See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Explain this dynamic programming climbing n-stair code
Problem is "You are climbing a stair case. Each time you can either make 1 step or 2 steps. The staircase has n ... c; } return b; } Thanks, See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Finding the longest cycle in a directed graph using DFS
I need to find the longest cycle in a directed graph using DFS. I once saw this Wikipedia article describing the way of doing ... 2>3>4>5>6>7>2. See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - O(NlogN) finding 3 numbers that have a sum of any arbitrary T in an array
Given an array A of integers, find any 3 of them that sum to any given T. I saw this on some online post, ... world, just bugs me.. Any idea? See Question&Answers more detail:os...
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Oct 24, 2021
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71.8m
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algorithm - Use Dijkstra's to find a Minimum Spanning Tree?
Dijkstra's is typically used to find the shortest distance between two nodes in a graph. Can it be used to ... on an old practice exam. See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - How to find the periodicity in data?
I have a dataset (an array) and I need to find the periodicity in it. How should I proceed? Somebody ... periodicity. Your help is appreciated! See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - What does this definition of contiguous subsequences mean?
I don't understand the following definition of a contiguous subsequence: A contiguous subsequence of a list S ... 10 a contiguous subsequence? See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm
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algorithm - Java: Longest common subsequence
I have following code: public class LCS1 { public static String lcs(String a, String b) { String x; String ... string returns what is problem? See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Remove duplicates from Array without using Hash Table
i have an array which might contain duplicate elements(more than two duplicates of an element). I wonder ... friend in yahoo technical interview See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - How to construct a binary tree using a level order traversal sequence
How to construct a binary tree using a level order traversal sequence, for example from sequence {1,2,3,#,#,4,#,# ... = true; } } return root; } See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm
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algorithm - Calculating future occurrences of Friday the 13th
I'd like to be able to start with a year, and calculate occurrences of Friday the 13th. A brute force ... code samples in you favorite language. See Question&Answers more detail:os...
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Oct 24, 2021
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825
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algorithm - PHP: How to get Sunday and Saturday given a date input?
How can I get the Sunday and Saturday of the week given a specific date? For example: input: Monday, September ... in advance :) Cheers, Mark See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm
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algorithm - Java Code for permutations of a list of numbers
I have written a program to find all the possible permutations of a given list of items. This precisely means ... writing a more efficient code. See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm
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algorithm - Generate a list of all unique Tic Tac Toe boards
I would like to generate a text file containing all 19,683 Tic-Tac-Toe board layouts in the structure of 0 = ... CPU time which is another plus. See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm
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algorithm - Find all triplets in array with sum less than or equal to given sum
This was recently asked to a friend in an interview and we do not know of any solution other than the simple O(n3) one. ... arr[j] + arr[k] <= S See Question&Answers more detail:os...
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Oct 24, 2021
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792
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algorithm - How to calculate the angle of a vector from the vertical?
Im trying to find out the angle (in degrees) between two 2D vectors. I know I need to use trig but I' ... title and the question was confusing. See Question&Answers more detail:os...
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Oct 24, 2021
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algorithm - Topological sort to find the number of paths to t
I have to develop an O(|V|+|E|) algorithm related to topological sort which, in a directed acyclic graph ( ... work with another point of view. See Question&Answers more detail:os...
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algorithm - Finding Center of The Tree
I have a question which is part of my program. For a tree T=(V,E) we need to find the node v in the tree ... on how i can fit into my program. See Question&Answers more detail:os...
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algorithm - Crossover operator for permutations
i'm trying to solve the problem of crossover in genetic algorithm on my permutations. Let's say I have two ... I get children of these two? See Question&Answers more detail:os...
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