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Questions tagged [recursion]

Recursion in computer science is a method of problem solving where the solution to a problem depends on solutions to smaller instances of the same problem.

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F# - Recursively find the first available item in a range definition

I have the following EF Core table: ...
Parsa99's user avatar
  • 235
5 votes
3 answers
719 views

A simple checksum for java.math.BigInteger

Intro I have a simple methods that converts the input instances of java.math.BigInteger to checksum. The checksum algorithm sums up all the digits in the input <...
coderodde's user avatar
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2 votes
0 answers
66 views

A recursive_minmax Template Function with Unwrap Level Implementation

This is a follow-up question for A recursive_minmax Template Function Implementation in C++ and A recursive_flatten_view Template Function Implementation in C++. The ...
JimmyHu's user avatar
  • 7,014
6 votes
1 answer
876 views

Python function that deeply "freezes" an object

I implemented a function that gets an object and returns its immutable counterpart. If the object contains another mutable object at any level, it freezes it too. Is my code is good and/or can it be ...
Marco Sulla's user avatar
5 votes
3 answers
996 views

LeetCode 678: Valid Parenthesis String, Recursion memoization to DP

How can the following recursion + memoization code be converted into a tabulation format dynamic programming solution? The code is working, but I want to improve it. The challenge I am facing is ...
Elias El hachem's user avatar
4 votes
2 answers
121 views

Advent of Code 2015 "Not Quite Lisp", in Common Lisp

I've been toying around with random programming languages for about 15 years. I'm just more of a sysadmin type than a programmer, but I've always wanted to do programming, so here I am. I know a bit ...
Mountain Man's user avatar
5 votes
2 answers
198 views

Is this Python decorator a good idea to solve circular recursion?

I have several model classes, let's say A_0, A_1, ..., A_N I have a method A_0.to_A_1() that calls A_1.to_A_2(), ... that calls ..., that calls A_(N-1).to_A_N() So far so good, but A_N may then call ...
Luca Bonaldo's user avatar
5 votes
2 answers
136 views

Check whether two Strings are anagrams of each other - then print all anagrams

I should write a CLI through which two Strings can be read in. These two Strings should be checked for whether they are anagrams of each other For both Strings, I should give out all their possible ...
Andrew Bailey's user avatar
2 votes
1 answer
219 views

Pollard's rho algorithm implementation

I used std::multiset to determine how many times that factor appears. I'd like to know if it can be improved; I've focused on the algorithm rather than the code. ...
ozan's user avatar
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2 votes
0 answers
37 views

A recursive_replace_copy_if Template Function with Unwrap Level Implementation in C++

This is a follow-up question for A recursive_replace_copy_if Template Function Implementation in C++. I am trying to implement recursive_replace_copy_if template ...
JimmyHu's user avatar
  • 7,014
9 votes
3 answers
604 views

Form all possible well-formed strings of 'n' nested pairs of 2 types of ASCII brackets

Taking an interest in the challenge presented in this recent Code Review question, I've concocted a C solution (valid as C++, if I'm not mistaken) seeking to reduce both the lines of code and the ...
Fe2O3's user avatar
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3 votes
1 answer
116 views

Recursively iterate over every object in an object graph looking for specific types

I have an object graph which contains two types of objects that I care about: Link objects that contain an ID and a reference to the object with that ID. ...
ScottishTapWater's user avatar
4 votes
1 answer
70 views

A recursive_flatten_view Template Function Implementation in C++

This is a follow-up question for A recursive_flatten Template Function Implementation in C++. I am trying to follow G. Sliepen's answer to create ...
JimmyHu's user avatar
  • 7,014
3 votes
1 answer
89 views

A recursive_flatten Template Function Implementation in C++

This is a follow-up question for A Summation Function For Boost.MultiArray in C++, A recursive_minmax Template Function Implementation in C++ and A recursive_reduce_all Template Function ...
JimmyHu's user avatar
  • 7,014
1 vote
1 answer
51 views

recursive_remove and recursive_remove_if Template Function with Unwrap Level Implementation in C++

This is a follow-up question for recursive_find and recursive_find_if_not Template Functions Implementation in C++ and A recursive_copy_if Template Function Implementation with Unwrap Level ...
JimmyHu's user avatar
  • 7,014

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