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Top Problems on Sliding Window Technique for Interviews

Last Updated: 03 March 2026

The Sliding Window Technique is a powerful algorithmic approach used to solve problems involving arrays or lists where a subarray or subsequence is required to be analyzed...read more

DSA

sliding-window

Count Subarrays With At Most K Distinct Elements

Last Updated: 23 July 2025

Given an array arr[] of integers and a positive integer k, the goal is to count the total number of subarrays that contain at most k distinct (unique) elements.Examples:In...read more

Find the Longest Turbulent Subarray

Last Updated: 23 July 2025

Given an integer array arr[] of size n. A subarray is turbulent if the comparison sign flips between each adjacent pair of elements in the subarray. The task is to find th...read more

Divide an array into k subarrays with minimum cost II

Last Updated: 23 July 2025

Given an array of integers arr[] of length n and two positive integers kk and len. The cost of an array is the value of its first element. For example, the cost of [2,3,4]...read more

Count K-Length Substrings With No Repeated Characters

Last Updated: 11 October 2024

Given a string S and an integer k, the task is to return the number of substrings in S of length k with no repeated characters.Example:Input: S = "geeksforgeeks", k = 5Out...read more

Check for Array Contains Duplicate III

Last Updated: 23 July 2025

Given an integer array arr[] and two integers indexDifference and valueDifference, find a pair of indices (i, j) such that:i != jabs(i - j) = indexDifferenceabs(arr[i] - a...read more

Count Number of Substrings With Fixed Ratio

Last Updated: 06 June 2024

Given a binary string s and two coprime integers n1 and n2, the task is to find the number of non-empty substrings where the ratio of 0's to 1's is exactly n1 : n2.Example...read more

Smallest subarray such that its bitwise OR is at least k

Last Updated: 12 May 2024

Given an array arr[] of non-negative integers and an integer k. The task is to find the smallest non-empty subarray of arr[] such that the bitwise OR of all of its element...read more

CSES Solutions - Sliding Window Cost

Last Updated: 16 March 2024

You are given an array arr[] of N integers. Your task is to calculate for each window of K elements, from left to right, the minimum total cost of making all elements equa...read more

CSES Solutions - Maximum Subarray Sum II

Last Updated: 23 July 2025

Given an array arr[] of N integers, your task is to find the maximum sum of values in a contiguous subarray with length between A and B.Examples:Input: N = 8, A = 1, B = 2...read more

Find longest substring of S1 that matches in S2 with a given cost

Last Updated: 23 July 2025

Given two strings S1 and S2 of length n. Additionally, two positive integers, target and C. The task is to determine the maximum length of a contiguous substring in S1 suc...read more

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Maximum number that can be obtain by swapping adjacent digits of same parity

Last Updated: 20 March 2024

Given an integer N, the task is to find the maximum integer that can be obtained from the given integer such that the adjacent digits of the same parity can be swapped any...read more

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Number of subarray's of K size with Even Bitwise-OR

Last Updated: 23 July 2025

You are given an array arr[] containing n integers and an integer k. Find the number of subarrays of arr with length k whose bitwise OR is even.Examples:Input: arr[] = {4,...read more

Sliding Window Problems | Identify, Solve and Interview Questions

Last Updated: 23 July 2025

When we are dealing with problems that require checking answers of some ranges in an array, the Sliding window algorithm can be a very powerful technique.What are Sliding ...read more

Find the Longest Substring Conversion

Last Updated: 23 July 2025

Given two strings source and target of equal length, and two positive integers, maxCost, and conversionCost, the task is to find the indices of the longest substring in so...read more

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URL: https://www.geeksforgeeks.org/tag/sliding-window/

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