Given an array of integers what is the length of the longest subarray python. Return the length of the longest nice subarray.

Given an array of integers what is the length of the longest subarray python. Here's a step-by-step explanation followed by the implementation in Python: Aug 20, 2025 · Given an array of integers, the task is to find the length of the longest subsequence such that elements in the subsequence are consecutive integers, the consecutive numbers can be in any order. For each starting point, we expand the subarray to the right while tracking the frequency of elements using a map. Print the length of the longest subarray obtained. Note: A sequence seq is an arithmetic progression if seq [i + 1] - seq [i] are all the same value (for 0 <= i < seq. A mountain subarray is defined as a subarray which consists of elements that are initially in ascending order until a peak element is reached and beyond the peak element all other elements of the Jun 26, 2016 · Given an array of positive integers nums and a positive integer target, return the minimal length of a subarray whose sum is greater than or equal to target. Jul 23, 2025 · Given an array arr [] containing n positive integers, a subsequence of numbers is called bitonic if it is first strictly increasing, then strictly decreasing. Can you solve this real interview question? Longest Mountain in Array - You may recall that an array arr is a mountain array if and only if: * arr. Given an array X[] of n integers, write a program to find the length of largest continuous subarray with zero sum. You must determine the length of the longest subarray with a mountain shape. The task is to find the length of the longest alternating (means negative-positive-negative or positive-negative-positive) subarray present in the array. Note: A subarray is a continuous part of an array. Solution Outline: Use the prefix sum technique with modular arithmetic and a hash map to store the first occurrence of each remainder. Longest Subarray Sum at Most K Find the longest subarray in a given array whose sum is at most k. length) that satisfies the following conditions: * nums [l] % 2 == 0 * For all indices i in the range [l, r - 1], nums [i] % 2 Jul 23, 2025 · Given an array arr [] of N integers, the task is to find the length of the longest increasing subarray such that elements in the subarray are consecutive integers. Examples: Input: arr[] = [10, 5, 2, 7, 1, -10], k = 15 Can you solve this real interview question? Minimum Size Subarray Sum - Given an array of positive integers nums and a positive integer target, return the minimal length of a subarray whose sum is greater than or equal to target. The input data are: K - the max sum array - an array of integers The algorithm I developed: h Jul 28, 2025 · Given an array arr [] consisting of both positive and negative integers, find the length of the longest subarray whose elements sum is zero. May 26, 2020 · Given an array of integers, what is the length of the longest subarray containing no more than two distinct values such that the distinct values differ by no more than 1? Example: The largest such subarray has length 4: [1,2,1,2]. If there exists two or more subarrays with maximum sum then print the length of the longest subarray. vis [0] checks for 'a', vis [1] checks for 'b', vis [2] checks for 'c' and so on. Example: For k = 3 and array = [1,2,1,1,2], Answer = 5 Jan 11, 2025 · Given an array arr [] of size n containing integers, the task is to find the length of the longest subarray having sum equal to the given value k. Jul 23, 2025 · Given a 1-based indexing array arr [] of non-negative integers and an integer sum. Can you think of an O(n) solution? Example: {10, 5, 3, 1, 4, 2, 8,. In other words, let k be the maximum value of the bitwise AND of any subarray of nums. Example 1: Input: nums = [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with an equal number of 0 and 1. Jun 12, 2023 · The Longest Increasing Subsequence (LIS) problem is to find the length of the longest subsequence of a given sequence such that all elements of the subsequence are sorted in increasing order. Return the length of the longest nice subarray. Examples: Input : arr[] = {5, -2, -1, 3, -4} Output : 4 There are two subarrays with maximum sum: First is {5} Second is {5, -2, -1, 3} Therefore longest one is of length 4. Jul 23, 2025 · [Naive Approach] Using Nested Loop - O (n^2) Time and O (1) Space A simple approach is to generate all possible subarrays and check whether the subarray has equal number of 0s and 1s or not. Given an array of n integers, find the length of the longest consecutive sequence. The task is to return the length of the largest subarray which contains an equal number of 0’s and 1’s. Examples: Aug 13, 2025 · Given an arr [] containing n integers and a positive integer k, the problem is to find the longest subarray's length with the sum of the elements divisible by k. Return the length of the longest good subarray of nums. The frequency of an element x is the number of times it occurs in an array. This problem is a variation of the sliding window technique, often used in solving array problems efficiently. Length of Longest Subarray With at Most K Frequency in Python, Java, C++ and more. Problem: Given an array of integers and an integer k, find the length of the longest subarray with sum divisible by k. In case of multiple subarrays, return the subarray indexes which come first on moving from left to right. Longest Continuous Increasing Subsequence Description Given an unsorted array of integers nums, return the length of the longest continuous increasing subsequence (i. Note: This is an excellent question to learn problem-solving using hash table. You mainly need to return the left and right indexes (1-based indexing) of that subarray. Can you solve this real interview question? Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit - Given an array of integers nums and an integer limit, return the size of the longest non-empty subarray such that the absolute difference between any two elements of this subarray is less than or equal to limit. Jul 11, 2025 · Given an array of N integers, find the length of the longest subsequence of a given sequence such that all elements of the subsequence are sorted in strictly decreasing order. k = 3 and Array = [1,2,1,1,2] Find the length of the largest subarray such that atleast one integer from 1 to k is absent. Examples: Input: arr [] = [0, 1, 1, 0, 0, 1] Output: 5 Explanation: The subarray from index 1 to 5, that is [1, 1, 0, 0, 1] has exactly one more 1s than 0s. To solve this problem, we need to find the length of the longest subarray that contains at most two distinct integers where the difference between the two integers is no more than 1. Eg. So in other words, for all j > i, find max (j - i + 1) among all subarrays with zero sum. Can you solve this real interview question? Longest Strictly Increasing or Strictly Decreasing Subarray - You are given an array of integers nums. Example 2: Input: nums = [1] Output: 1 Explanation: The subarray [1] has the largest sum 1. e. Input: arr [] = [10, 20, 30, 40] Output: 4 Explanation: The array [10, 20, 30, 40] is strictly increasing with no decreasing part, so the longest bitonic subarray is the entire array itself, giving a length of 4. Apr 25, 2024 · We first perform a pass to find the length of the longest strictly increasing subarray, and update the answer. , [1, 2, 3, 5]). Given an array of integers, we are going to find the length of the largest subarray with sum k in Python. Jan 15, 2025 · Longest Subarray with Sum K By Admin / January 15, 2025 Given an array arr[] containing integers and an integer k, your task is to find the length of the longest subarray where the sum of its elements is equal to the given value k. Input: arr [] = [0, 0, 0, 0] Output: 0 Explanation: Since there are no 1s, there is no subarray Aug 10, 2020 · Problem: We're given an array of integers with integers ranging from 1 to k. Using dynamic programming ideas, we will solve this on O(N^2) time complexity Sep 6, 2021 · Where the function "LongestSubarray" just test if the longest subarray is not the array itself, and if it not, them call the other one, which is moving along the array step by step and the "n" represents the quantity of numbers that are not being selected in the subarray,, i. To solve the problem of finding the length of the longest subarray containing no more than two distinct values where the distinct values differ by no more than 1, we can utilize the sliding window technique. Nov 11, 2023 · Understand how to find the Longest Increasing Subsequence in an array using three approaches with programs in C++, Java, and Python. length - 1). If no such subarray exists return an array consisting of element -1. Note: This is an excellent problem to learn problem-solving using sorting and hash table. To make this process easy we find cumulative sum of the subarrays taking 0s as -1 and 1s as +1. If you liked this solution or found it useful, please like this post. Consider a non-empty subarray from nums that has the maximum possible bitwise AND. Jul 23, 2025 · Given an array arr [] of size n, the task is to find the length of the Longest Increasing Subsequence (LIS) i. The space complexity is O (1). Example 1: Nov 11, 2023 · Understand how to find the Longest Increasing Subsequence in an array using three approaches with programs in C++, Java, and Python. In-depth solution and explanation for LeetCode 2958. The problem is to find the length of the longest contiguous subarray such that every element in the subarray is strictly greater than its previous element in the same subarray. , the longest possible subsequence in which the elements of the subsequence are sorted in increasing order. A subarray is a contiguous non-empty sequence of elements within an array. Your task is to find the length of the longest subarray that is either strictly increasing or strictly decreasing. We could have also used the subsequence [3, 4, 5, 7, 9]… Jul 23, 2025 · It starts increasing at 4, peaks at 90, and decreases to 23, giving a length of 5. Input: arr[] = {4, -1, 1, 0, 10} k = 1 Output: 1 Longest Subarray with sum K | Brute - Better - Optimal | Generate Subarrays take U forward 933K subscribers Subscribed Aug 14, 2021 · This is part of a series of Leetcode and other curated solution explanations (index). In this blog post, we discussed how to find the length of the longest subarray without repeating integers using a naive O (n^3) approach. Examples: Input: A [] = [0, 1] Output: 2 Explanation: [0, 1] is the longest subarray with equal number of 0 and 1. Examples: Input: a [] = {1, 2, 3 Sep 17, 2025 · The longest increasing subsequence problem is to find a subsequence of a given sequence in which the subsequence's elements are in sorted order, lowest to highest, and in which the subsequence is as long as possible. We call a subarray of nums nice if the bitwise AND of every pair of elements that are in different positions in the subarray is equal to 0. Example a = [1, 1, 2, 2, 4, 4, 5, 5, 5] There are two subarrays meeting the criterion: [1, 1, 2, 2] and [4, 4, 5, 5, 5]. The subarray length starting from index i and ending at index j will be j - i + 1. A strictly increasing subarray means each element is greater than the previous one (e. Apr 12, 2013 · Given an unsorted array of positive integers, find the length of the longest subarray whose elements when sorted are continuous. Longest Subarray With Maximum Bitwise AND in Python, Java, C++ and more. You are given a binary array nums that contains only 0s and 1s. subarray). Task Given an array of integers, find the longest subarray where the absolute difference between any two elements is less than or equal to 1. Sep 25, 2025 · Given a binary array arr [], the task is to find the length of the longest subarray having count of 1s exactly one more than count of 0s. It is a Leetcode problem, and the question says: an unsorted array of integers is given and find the length of the longest increasing subsequence or subset of the given array. Our algorithm solves this problem in O (n) time and O (1) space. The longest subarray is empty, which has a length of 0. Sep 7, 2021 · Question is- Given an array of integers, find the longest subarray where the absolute difference between any two elements is less than or equal to . The subsequence must be strictly increasing. Example: arr [] = [1, 9, 3, 10, 4, 20, 2] Output: 4 Explanation: The subsequence 1, 3, 4, 2 is the longest subsequence of Problem Description You are given an array of integers nums and an integer value limit. Leetcode Problem #1027 (Medium): Longest Arithmetic Subsequence 1027. g. Example a = [1,1,2,2,4,4,5,5,5] The Longest Strictly Increasing or Strictly Decreasing Subarray problem is used to find the maximum length of the contiguous subarray within a given array where the elements are either strictly increasing or strictly decreasing. Jul 22, 2025 · Given an integer array arr [], find the subarray (containing at least one element) which has the maximum possible sum, and return that sum. A subarray is a contiguous part of an array. Note: A mountain sub-array starts with an increasing sequence, reaches a peak, and then follows a decreasing sequence. The gist of the question is, given an unsorted array of int nums, return the length of the longest consecutive elements sequence in O (n) time. Recall that a subsequence of an array The problem we will solve is given a sequence an array of positive integers and have to find the length of longest bitonic subsequence. Jul 27, 2017 · Given an array having both positive and negative integers, your task is to complete the function maxLen which returns the length of maximum subarray with 0 sum. Java C++ Python Go Jul 23, 2025 · It starts increasing at 4, peaks at 90, and decreases to 23, giving a length of 5. Feb 11, 2025 · Check out C++, C#, and Python programs to find out the length of the longest subarray, whose sum is equal to the specified number k, from a given array. If there is no such subarray, return 0 instead. Jul 12, 2025 · Given an array a [] of N integers, the task is to find the length of the longest Alternating Even Odd subarray present in the array. For example Input: arr[] = {2, 4, 5, 6, -3, 1} k = 12 Output: 4 Explanation: The longest subarray with elements sum is k {4, 5, 6, -3}. Problem Statement For example, the length of LIS for {10, 22, 9, 33, 21, 50, 41, 60, 80} is 6 and LIS is {10, 22, 33, 50, 60, 80}. Function Description Complete the pickingNumbers function in the editor below Can you solve this real interview question? Maximum Subarray - Given an integer array nums, find the subarray with the largest sum, and return its sum. Sep 16, 2022 · Given an array of N including positive and negative numbers only. Can you solve this real interview question? Contiguous Array - Given a binary array nums, return the maximum length of a contiguous subarray with an equal number of 0 and 1. Problem Description You are given an array of integers nums and an integer value limit. The problem is to find the length of the subarray having maximum sum. The output should be an array of maximum values corresponding to each contiguous subarray. Examples: Input: arr [] = {1, 1, 2, 2, 2, 3, 3}; Output: 3 Explanation: Longest subarray with equal elements is {2, 2, 2} Input: arr [] = {1, 1, 2, 2, 2, 3, 3, 3, 3}; Output: 4 Explanation: Longest subarray with equal elements is {3, 3, 3, 3} Approach: The idea is to traverse the Longest Subarray using Python or C Given an array of integers, what is the length of the longest subarray containing no more than two distinct values such that the distinct values differ by no more than 1? Example arr = [0,1,2,1,2,3] The largest such Aug 13, 2025 · Given an arrayarr []of integers and an integerk, your task is to find the maximum value for each contiguous subarray of sizek. Examples : Input: arr [] = {15, -2, 2, -8, 1, 7, 10, 23}; Output: 5 Explanation: The longest sub-array with Sep 18, 2022 · Given an array arr [] of size N, the task is to find the largest subarray which consists of all equal elements. Nov 17, 2023 · 4 Maximum subarray sum with at most K elements : Given an array of integers and a positive integer k, find the maximum sum of a subarray of size less than or equal to k. Return the length of the longest subarray of nums which is either strictly increasing or strictly decreasing. Jul 15, 2025 · Given an array arr [] of length N and an integer K, the task is to find the longest subarray with difference between any two distinct values equal to K. Question: Longest Subarray using Python or C Given an array of integers, what is the length of the longest subarray containing no more than two distinct values such that the distinct values differ by no more than 1? Given an unsorted array of integers nums, return the length of the longest continuous increasing subsequence (i. It is not necessary that all the k integers are present. Dec 7, 2022 · Given a binary array arr [], the task is to find the length of the longest sub-array of the given array such that if the sub-array is divided into two equal-sized sub-arrays then both the sub-arrays either contain all 0s or all 1s. Example 1: Input: nums = [-2,1,-3,4,-1,2,1,-5,4] Output: 6 Explanation: The subarray [4,-1,2,1] has the largest sum 6. Jul 23, 2025 · Given an array of integers (possibly some elements negative), write a C program to find out the *maximum product* possible by multiplying 'n' consecutive integers in the array where n ? Jul 12, 2025 · Given an array arr [] with N elements, the task is to find out the longest sub-array which has the shape of a mountain. Jul 15, 2025 · Given an array arr [] consisting of N integers, the task is to find the largest subarray consisting of unique elements only. If there is no subarray with sum equal to k, return 0. length - 1] Given an integer array arr, return the length of the longest Jun 12, 2020 · Maximum Subarray - Amazon Coding Interview Question - Leetcode 53 - Python NeetCode 1M subscribers Subscribe Nov 22, 2024 · Given an array arr [] of sorted integers and distinct positive integers, find the length of the Longest Arithmetic Progression in it. Input: arr[] = {1, 0, -4} k = 2 Output: 0 Explanation: There is no possible subarray with sum k. Example 3: Input: nums = [5,4,-1 Feb 7, 2023 · Given an array containing n numbers. Intuitions, example walk through, and complexity analysis. Example: arr [] = [15, -2, 2, -8, 1, 7, 10, 23] Output: 5 Explanation: Explanation: The longest sub-array with elements sum to 0 is [-2, 2, -8, 1, 7] Approach 1: Brute Force A simple solution is to check for all subarrays one by one and see if its sum In-depth solution and explanation for LeetCode 2419. The task is to find the length of the longest bitonic subsequence. Sep 9, 2025 · Given an integer array, find the length of the longest subsequence formed by the consecutive integers. Given an array of integers what is the length of the longest subArray containing no more than two distinct values such that the distinct values differ by no more than 1 For Example: arr = [0, 1, Aug 9, 2023 · Given an array containing only 0s and 1s, write a Python function to find and return the length of the longest subarray with equal number of 0s and 1s. . In other words, we need to find the length of the longest subsequence such that elements in the subsequence are consecutive integers. Longest Arithmetic Subsequence Given an array nums of integers, return the length of the longest arithmetic subsequence in nums. The maximum length subarray has 5 elements. The input is an array of integers, and the output is a single integer representing the length of the longest subarray without repeating integers. Examples : May 15, 2024 · Understand Kadane's Algorithm for finding the largest sum of a contiguous subarray. This is a classic problem in computer science with applications in data streaming, machine learning, and other fields. An array is called good if the frequency of each element in this array is less than or equal to k. Subarray Sum Equals K - Given an array of integers nums and an integer k, return the total number of subarrays whose sum equals to k. Your task is to find the length of the longest contiguous subarray where the absolute difference between any two elements within that subarray is at most limit. We covered the problem definition, approach, algorithm, code implementation, complexity analysis, edge cases, and testing. length >= 3 * There exists some index i (0-indexed) with 0 < i < arr. Find the length of the longest subarray of nums starting at index l and ending at index r (0 <= l <= r < nums. Can you solve this real interview question? Longest Even Odd Subarray With Threshold - You are given a 0-indexed integer array nums and an integer threshold. Hence Here's a breakdown of my solving process for this medium longest consecutive sequence question. length - 1 such that: * arr[0] < arr[1] < < arr[i - 1] < arr[i] * arr[i] > arr[i + 1] > > arr[arr. Example: Input: n = 5, k = 2, s = 5, arr = { 1, 3, 2, 1, 5 } Output: 4 Explanation: One of the segments with length 4 is [1,3,2,1]. Learn its application, complexity analysis, coding best practices, and see code examples in Python and Java. The subsequence should contain all distinct values, and the character set should be consecutive, irrespective of its order. Java C++ Python Go Oct 17, 2018 · From just looking at the array, we can determine that the length of the longest increasing subsequence is 5. The largest such subarray has length 4: [3, 3, 2, 2]. Jul 12, 2025 · Given an array arr [] of N integers and an integer K, our task is to find the length of the longest subarray such that for all possible pairs in the subarray absolute difference between elements is less than or equal to K. Problem Description You are given an array of integers nums. Aug 28, 2021 · Problem Statement: Longest Consecutive Subsequence longest consecutive subsequence : Given an array of integers, find the length of the longest sub-sequence such that elements in the subsequence are consecutive integers, the consecutive numbers can be in any order. Aug 4, 2025 · To find the length of the longest substring with distinct characters starting from an index, we create a new visited array of size = 26 to keep track of included characters in the substring. It can be divided into two segments Jul 12, 2025 · Given an array arr [] containing n numbers, the task is to find the length of the longest ZigZag subarray such that every element in the subarray should be in form Aug 28, 2021 · Problem Statement: Longest Mountain Subarray You are provided an array of 'N' numbers that represent the mountain heights. Examples: Input: arr [] = {2, 4, 5, 5, 5, 3, 1}, K = 0 Output: 3 Explanation: The possible subarray with difference in elements as 0 is {5, 5, 5} whose length is 3. Your task is to find the maximum length of a contiguous subarray that contains an equal number of 0s and 1s. Aug 25, 2025 · The idea is to find the longest subarray with at most two distinct integers by trying every possible starting index. Sep 15, 2025 · Explanation: There is no subarray where all elements are less than or equal to the length of the subarray. Examples: Input: arr [] = {1, 2, 3, 4, 5 Nov 9, 2016 · The problem consist of finding the longest contiguous subarray with a sum less than a given integer K. A subarray is a contiguous part of the array. Aug 28, 2021 · Problem Statement: Longest Subarray with Zero Sum Given an array of integers, find the length of the longest sub-array with a sum that equals 0. Longest Nice Subarray - You are given an array nums consisting of positive integers. The consecutive numbers can be in any order. Note: If there is no subarray with sum equal to k, return 0. Title: Longest Subarray Using Python or C Given an array of integers, what is the length of the longest subarray containing no more than two distinct values such that the distinct values differ by no more than 1? Nov 11, 2021 · Given a binary array A [] consisting of 0’s and 1’s. I'm using Python for the matter. Example: Aug 1, 2020 · Given an array of integers, find the length of the longest sub-array with sum equals to 0. Better than official and forum solutions. For example, if nums = [0, 1, 0, 0, 1, 1, 0], the longest contiguous subarray with equal 0s and 1s would be [0, 1, 0, 0, 1, 1] with length 6 (containing three 0s and three 1s). The time complexity is O (n), where n is the length of the array. when n=2 the subarrays are going to be: [1,1,2,3], [1,2,3,4], [2,3,4,5] Oct 4, 2017 · Welcome to Subscribe On Youtube 674. If the cumulative sum is equal to 0 for any subarray then update the current maximum length with the maximum Length of Longest Subarray With at Most K Frequency - You are given an integer array nums and an integer k. SOLVED: Title: Longest Subarray Using Python or C Given an array of integers, what is the length of the longest subarray containing no more than two distinct values such that the distinct values differ by no more than 1? Jul 23, 2025 · Given an array arr [] of length N, the task is to find the length of the longest subarray which consists of consecutive numbers in increasing order, from the array. A subarray is a contiguous part of an array, formed by selecting one or more consecutive elements while maintaining their original order. Feb 2, 2024 · A famous question is asked about the longest-increasing subsequence around the Python community and asked in different interviews. Input The problem requires finding the length of the longest subarray in a given array of integers where no integer repeats. Then we perform another pass to find the length of the longest strictly decreasing subarray, and update the answer again. Given an array of integers what is the length of the longest subArray containing no more than two distinct values such that the distinct values differ by no more than 1 For Example: arr = [0, 1, Aug 10, 2020 · Problem: We're given an array of integers with integers ranging from 1 to k. Jul 11, 2025 · Given an array arr [] containing n integers. Examples: Input: a [] = {1, 2, 3 Jan 11, 2024 · Given 2 integers S and K and an array arr [] of N integers, find the longest subarray in arr [] such that the subarray can be divided into at most K contiguous segments and the sum of elements of each segment can be at most S. 2ntjh or3qzj j0p b6f xlopoi wffg j0t wxyz hx2jx azgrxsoe