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DSA / Algorithms / Recursion

Recursion

591+ posts

Tail vs. Non-Tail Recursion

Last Updated: 06 October 2023

Tail recursion and Non-tail recursion are two types of recursive functions in computer programming. In this post we will deep dive into what are the major differences betw...read more

What is 'Base Case' in Recursion?

Last Updated: 06 January 2024

Base Case is defined as the condition in Recursive Function, which tells the function when to stop. It is the most important part of every Recursion, because if we fail to...read more

Count distinct original Strings

Last Updated: 23 July 2025

Given a string str. A faulty machine prints bb instead of character a and prints dd instead of char c and for the rest characters it prints normally, the task is to find h...read more

Dynamic Programming

Algorithms-Dynamic Programming

Algorithms-Recursion

recursive-approach

Minimum total power consumption by both the current "+" & "-"

Last Updated: 23 July 2025

Given a matrix of size rows x cols called "power," which represents the power associated with each cell in the field. There are two types of current flow in the field: "+"...read more

Dynamic Programming

Permutations of an Array in lexicographical order.

Last Updated: 23 July 2025

Given an array arr[] of distinct integers, the task is to print all the possible permutations in lexicographical order.Examples:Input: arr = [1, 2, 3]Output: [[1, 2, 3], [...read more

Achieving Y through integer splitting

Last Updated: 23 July 2025

Given integers X and Y, the task is to check if Y can be formed from X by performing the following operations any number of times:Split X into 2 integers A and B such that...read more

Dynamic Programming

Algorithms-Recursion

Top Problems on Recursion

Last Updated: 11 September 2025

Recursion is one of the most essential algorithms that uses the concept of code reusability and repeated usage of the same piece of code.In this post, we have curated an e...read more

Interview-Questions

top-dsa-problems

Recursive Algorithms

Last Updated: 23 July 2025

Recursion is technique used in computer science to solve big problems by breaking them into smaller, similar problems. The process in which a function calls itself directl...read more

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Forming String with maximum occurrences

Last Updated: 23 July 2025

Given the maximum occurrences of a, b, and c in a string, the task is to make the string containing only a, b, and c such that no three consecutive characters are the same...read more

Last Updated: 13 December 2025

Recursion is a programming technique where a function calls itself repeatedly until a specific base condition is met. A function that performs such self-calling behavior i...read more

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Last Updated: 23 July 2025

Recursionis a programming technique where a function calls itself repeatedly until a specific base condition is met. A function that performs such self-calling behavior is...read more

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Print n to 1 using Recursion

Last Updated: 27 September 2025

Given an integer n.Print numbers from n to 1 using recursion.Examples:Input: n = 3Output: [3, 2, 1]Explanation: Print numbers in reverse order from n down to 1.Input: n = ...read more

article_image

Print 1 to n using Recursion

Last Updated: 30 September 2025

Given an integer n.Print numbers from 1 to n using recursion.Examples:Input: n = 3Output: [1, 2, 3]Explanation: We have to print numbers from 1 to 3.Input: n = 10Output: [...read more

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Minimum number of operations to make all letters in the string equal

Last Updated: 23 July 2025

Given a string "str" consisting of lowercase alphabets, the task is to find the minimum number of operations to be applied on string "str" such that all letters of the str...read more

Algorithms-Recursion

Find product of the smallest and largest prime numbers in a binary tree

Last Updated: 23 July 2025

Given a binary tree, the task is to find the product of the smallest and largest prime numbers in a given binary tree.Examples:Input: 4 / \ 5 7 / \ / \ ...read more

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