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SPP - Range Querie

Last Updated: 15 December 2025

We are given queries array q[][], where each q[i] consists of two integers L and R (note that L may be greater than R). For every query, we need to determine how many numb...read more

Minimum Operations to Reduce X to Zero

Last Updated: 15 December 2025

Given an array nums[] and an integer X. In one operation, you may remove either the first element (leftmost) or the last element (rightmost) of the current array, and subt...read more

Maximum Length Duplicate Substring

Last Updated: 15 December 2025

Given a string s, we need to find the duplicate substring with the maximum possible length. A duplicate substring is any contiguous sequence of characters that appears at ...read more

Last Updated: 15 December 2025

Given two arrays, A[] and B[] we can increase or decrease any element by 1 and each operation costs K.Our task is to ensure that the largest number in B is less than or eq...read more

Maximum Points Covered

Last Updated: 13 December 2025

Given a 2D plane points[][] and a rectangle with fixed length x and breadth y. We need to find the maximum number of points that can fit inside or on the boundary of this ...read more

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Last Updated: 15 December 2025

Geek has placed n light bulbs on a wooden plank, and one bulb will be turned on each day. The array bulbs[] specifies the order in which the bulbs glow, where bulbs[i] = p...read more

Geek and Hiring freeze

Last Updated: 13 December 2025

Due to recent layoffs and a hiring freeze in the tech industry, Geek is concerned about his placements and decides to strengthen his preparation over the next few days by ...read more

Sum of Total Strength of Wizards

Last Updated: 13 December 2025

We are the ruler of a kingdom and command an army of wizards. We are given a 0-indexed integer array strength[], where strength[i] is the strength of the i-th wizard. For ...read more

Last Updated: 13 December 2025

Geek has n different candy buckets, represented by an array bucket[], where bucket[i] denotes the number of candies in the i-th bucket (bucket[i] ≥ 1).One day, he wonders ...read more

Shortest Range In BST

Last Updated: 13 December 2025

We are given a Binary Search Tree (BST), and our task is to determine the shortest possible range [x, y] such that every level of the BST contains at least one node whose ...read more

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Count Palindromic Concatenation Pairs

Last Updated: 12 December 2025

We are given a list S containing N lowercase words, and the task is to determine the number of ordered pairs (i, j) such that 1 ≤ i, j ≤ N, i ≠ j, and the concatenation of...read more

Longest Common Starting Subarray Across Multiple Permutation Rows

Last Updated: 12 December 2025

We’re given an M * N matrix, and each row is a permutation of 1…N.Now, for every number j, we look at the position where j appears in each row, and from that position onwa...read more

Remove Edge Queries on Tree

Last Updated: 12 December 2025

We are given a tree with N vertices and N–1 edges. We also receive Q queries, and each query provides two vertices u and v. For every query, we must remove the edge betwee...read more

Best Pair Dance Competition

Last Updated: 12 December 2025

We are given two groups, each with N people, and our goal is to form pairs so that every person from the first group is matched with exactly one person from the second gro...read more

Difference of Left Greater and Right Lesser Elements

Last Updated: 12 December 2025

Given an array arr[] of size n, the task is to build a result array where each element represents the absolute difference between the number of elements greater than it on...read more

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