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tail-recursion

17 posts

Tail Call Optimisation in C

Last Updated: 23 July 2025

In C programming, Tail Call Optimization (TCO) is a technique that eliminates the need for an additional stack frame to store the data of another function by reusing the c...read more

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Algorithms-Recursion

optimization-technique

Recursion in Python

Last Updated: 19 May 2026

Recursion is a programming technique where a function calls itself either directly or indirectly to solve a problem. It is commonly used for:Breaking problems into smaller...read more

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Sum of series formed by difference between product and sum of N natural numbers

Last Updated: 07 October 2022

Given a natural number N, the task is to find the sum of the series up to Nth term where the ith term denotes the difference between the product of first i natural numbers...read more

Natural Numbers

Check if a given number is a Perfect square using Binary Search

Last Updated: 12 July 2025

Check if a given number N is a perfect square or not. If yes then return the number of which it is a perfect square, Else print -1.Examples:Input: N = 4900Output 70Explana...read more

Divide and Conquer

maths-perfect-square

Number of ways in which an item returns back to its initial position in N swaps in array of size K

Last Updated: 12 July 2025

Given two numbers K and N, the task is to find the number of ways such that an item at position i returns back to its initial position in an array of length K in N steps, ...read more

Technical Scripter

Technical Scripter 2019

array-rearrange

Permutation and Combination

Divide an array into K subarray with the given condition

Last Updated: 29 March 2023

Given an array arr[] and an integer K. The task is to divide the array into K parts ( subarray ) such that the sum of the values of all subarray is minimum.The value of ev...read more

Dynamic Programming

Counts Path in an Array

Last Updated: 23 June 2022

Given an array A consisting of positive integer, of size N. If the element in the array at index i is K then you can jump between index ranges (i + 1) to (i + K).The task ...read more

Maximum number of given operations to remove the entire string

Last Updated: 07 February 2023

Given string str containing lowercase English characters, we can perform the following two operations on the given string:Remove the entire string.Remove a prefix of the s...read more

Dynamic Programming

Python | Handling recursion limit

Last Updated: 12 July 2025

When you execute a recursive function in Python on a large input ( 10^4), you might encounter a "maximum recursion depth exceeded error". This is a common error when exec...read more

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Python Programs

Check whether two strings are equivalent or not according to given condition

Last Updated: 14 August 2023

Given two strings A and B of equal size. Two strings are equivalent either of the following conditions hold true:1) They both are equal. Or,2) If we divide the string A in...read more

Check if item can be measured using a scale and some weights

Last Updated: 06 February 2023

Given some weights of masses a0, a1, a2, ..., a100, a being an integer, and a weighing scale where weights can be put on both the sides of the scale. Check whether a parti...read more

Technical Scripter 2018

Number of ways to divide a given number as a set of integers in decreasing order

Last Updated: 27 March 2023

Given two numbersaandm. The task is to find the number of ways in which a can be represented by a set\{n_1, n_2, ...., n_c\}such thata = n_1 n_2 ... n_m 0and the summa...read more

Sum of array - Tail Recursive Solution

Last Updated: 10 September 2025

Given an array arr, we need to find the sum of its elements using Tail Recursion Method. We generally want to achieve tail recursion so that compilers can optimize the cod...read more

Recursive Practice Problems with Solutions

Last Updated: 19 July 2025

Basics - RecursionRecursive FunctionsTail RecursionStrings -Given a string, print all possible palindromic partitionsCheck if a number is PalindromePrint all possible stri...read more

Introduction to Recursion

Last Updated: 13 June 2026

The process in which a function calls itself directly or indirectly is called recursion and the corresponding function is called a recursive function. A recursive algorith...read more

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