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Waiting Time of the Last Consumer

Last Updated: 07 June 2026

Given two positive integers n and x, n denotes the total number of consumers, x denotes the time interval, after which a new consumer arrives. A single producer serves on...read more

Number of Open Tabs

Last Updated: 08 June 2026

You are given an array arr[], where each element is either a tab ID or the string "END". If a tab ID appears, toggle its state (open if it's closed, or close if it's open)...read more

Remove first and last characters

Last Updated: 07 June 2026

Given a string s, return a substring containing all characters except the first and the last. The length of the s will be greater than 2.Examples:Input: s = "Hello"Output:...read more

The Modulo Task

Last Updated: 07 June 2026

Given an integer n. find an integer k for which n % k is the largest where 1 ≤ k n.Examples :Input: n = 3Output: 2Explanation:3 % 1 = 03 % 2 = 1So, the modulo is highest ...read more

Numbers from 1 to n with digits in set {1, 2, 3, 4, 5}

Last Updated: 04 June 2026

Given a number n, count the numbers from 1 to n, which comprise only digits from set {1, 2, 3, 4, 5}.Examples:Input: n = 20Output: 10Explanation: The numbers whose digits ...read more

Bitwise OR of a Binary Array

Last Updated: 04 June 2026

Given a binary array, find Bitwise OR of the given array. Examples : Input: arr[] = [1 1 1 0]Output:1Explanation:1 | 1 = 11 | 1 = 11 | 0 = 1hence output is 1Input: arr[]...read more

Minimum Steps to Reach Top with p or q Moves

Last Updated: 31 May 2026

You are standing at the bottom of a staircase with exactly n stairs. You can take steps of size p or q at a time. Your task is to calculate the minimum number of steps req...read more

Total Strings with 3 Characters

Last Updated: 31 May 2026

Given 3 characters 'a', 'b', 'c', find the number of strings of length n that can be formed from these 3 characters. Given that : We can use ‘a’ as many times as we want. ...read more

Generate all strings from mid in circular manner

Last Updated: 31 May 2026

Given an odd length string s, return a list of strings by starting from the middle character of s and then repeatedly appending the next characters in circular order. Cont...read more

Max Identical with Any Number of Movements

Last Updated: 27 May 2026

Given an integer array arr[], where arr[i] represents the number of cookies in the i-th bowl, you can perform the following operation any number of times:Take one cookie f...read more

Subtrees with Limited Distinct Nodes

Last Updated: 09 June 2026

You are given a root node of a binary tree and each node of the binary tree is assigned a value and you are also given an integer k and you need to return the count of sub...read more

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Any Common Subsequence

Last Updated: 24 May 2026

Given two strings s1 and s2. Check whether they contain any common subsequence (non empty) or not.Examples:Input: s1 = "ABEF", s2 = "CADE"Output: trueExplanation: Subseque...read more

Minimum XOR with given set bits

Last Updated: 24 May 2026

Given two integers a and b, find an integer x such that the number of set bits in x is equal to the number of set bits in b, and the value of (x XOR a) is minimized. Retur...read more

Count Subsequence Occurrences with Different Characters

Last Updated: 22 May 2026

Given two strings s and w, find the number of times w appears as a subsequence of string s where every character of string s can be included in forming at most one subsequ...read more

Count Sorted Subsequences of Size 3

Last Updated: 21 May 2026

Given an array of integers arr[], a triplet (arr[i], arr[j], arr[k]) is called a Magic Triplet if it satisfies two conditions:arr[i] arr[j] arr[k]i j kThe task is to c...read more

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