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Algorithms-Recursion

51 posts

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

Last Updated: 15 September 2023

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

Achieving Y through integer splitting

Last Updated: 16 November 2023

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

Compressed String decoding for Kth character

Last Updated: 13 December 2023

Given a compressed string composed of lowercase characters and numbers, the task is to decode the compressed string and to find out the character located at the Kth positi...read more

Algorithms-Recursion

encoding-decoding

Count distinct original Strings

Last Updated: 28 October 2023

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

Tail Call Optimisation in C

Last Updated: 06 September 2023

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

article_image

Algorithms-Recursion

optimization-technique

Count of Valid Partitions such that all Partitions lie in Range [1, L]

Last Updated: 04 December 2023

Given a string S containing only digits and an integer L, find the number of ways to partition the given string such that each partition forms a number that lies between t...read more

Dynamic Programming

Geeks Premier League

Algorithms-Recursion

Find all concatenations of words in Array

Last Updated: 30 November 2023

Given an array of strings arr[] (1 = |arr[i]| = 20) of size N (1 = N = 104), the task is to find all strings from the given array that are formed by the concatenation of s...read more

Geeks Premier League

Algorithms-Recursion

Geeks Premier League 2023

Frog Jump - Climbing Stairs with Cost

Last Updated: 11 November 2024

Given an integer array height[] where height[i] represents the height of the i-th stair, a frog starts from the first stair and wants to reach the top. From any stair i, t...read more

Dynamic Programming

Data Structures

Algorithms-Dynamic Programming

Algorithms-Recursion

Maximum points by removing Identical Items

Last Updated: 23 December 2023

Given an array arr[] of size N (1 = N = 100), which consists of positive numbers representing different items, two items in the array will be treated as identical if arr[...read more

article_image

Dynamic Programming

Geeks Premier League

Algorithms-Recursion

Geeks Premier League 2023

Maximizing Readability-Coefficient for Book Printing

Last Updated: 07 December 2023

A book publisher collected data on the readability level of his n books. Book publisher can print any book in 1 unit of time. Readability-Coefficient of a book is defined ...read more

Dynamic Programming

Geeks Premier League

Algorithms-Recursion

Geeks Premier League 2023

Maximizing Merit Points in Training Program

Last Updated: 11 January 2025

Geek is going for a training program. He can perform any of these activities: Running, Fighting, and Learning Practice. Each activity has some point on each day. As Geek w...read more

Dynamic Programming

Algorithms-Dynamic Programming

Algorithms-Recursion

Program to Reveal the positions in Minesweeper

Last Updated: 23 January 2024

Given a m x n char matrix mat[][] representing the Minesweeper game board. The matrix mat[i][j], uses characters to denote unopened mines ('M'), unopened empty squares ('E...read more

Geeks Premier League

Algorithms-Recursion

Geeks Premier League 2023

Print all paths in matrix with given target sum

Last Updated: 12 March 2024

Given a 2D matrix mat[][] of size N*M and a target sum S, print all paths in matrix with sum = S from the top-left corner with the constraints that from each cell you can ...read more

Algorithms-Recursion

Backtracking Algorithm

Last Updated: 06 July 2025

Backtracking algorithms are like problem-solving strategies that help explore different options to find the best solution. They work by trying out different paths and if o...read more

Algorithms-Backtracking

Algorithms-Recursion

CSES Solutions - Trailing Zeros

Last Updated: 02 April 2024

Your task is to calculate the number of trailing zeros in the factorial N!.Examples: Input: N = 20Output: 4Explanation: 20! = 2432902008176640000 and it has 4 trailing zer...read more

Competitive Programming

Algorithms-Recursion