Dynamic programming leet. How to start learning DP Dynamic Programming with Leetcode.
Dynamic programming leet Each time you can either climb 1 or 2 steps. Aug 10, 2022 路 I Solved Over 100 Dynamic Programming Questions on Leetcode and Here’re My 2 Cents. Unique Paths 1641. In this blog post, we’ll dive deep into various solutions, from brute-force to optimized dynamic programming, complete with Kotlin code examples and a breakdown of their time and space Feb 5, 2020 路 LeetCode topics — Dynamic Programming Algorithm Questions one dimension 70. Moral Can you solve this real interview question? Jump Game - You are given an integer array nums. Number of Ways to Assign Edge Weights II 3557. This github repo contains my solutions to Dynamic Programming I from Ultimate DP Study Plan Dynamic programming is both a mathematical optimization method and a computer programming method. Fibonacci Sequence. To master this technique, it is … For example, given s = "leetcode", dict = ["leet", "code"]. Start Practicing: https://leetcode. Jun 5, 2021 路 1M subscribers Subscribe 16K 770K views 4 years ago #python #dynamic #programming Jan 3, 2021 路 Hi All, I just completed my DP adventure which I started in last June and I would like to share my findings in this post. Time complexity & Sample Codes. Intuitions, example walk through, and complexity analysis. Subtree Inversion Sum 3543. Best Time to Buy and Sell Stock 198. You are initially positioned at the array's first index, and each element in the array represents your maximum jump length at that position. There are already more than enough […] Hello everyone!馃憢Welcome back to Part 2 of “Mastering Dynamic Programming (DP)”If you haven’t gone through Part 1, I highly recommend checking it out first — it covers the core ideas of DP, including how and when to apply it, and introduces you to Top Intuition for Floyd’s Cycle Detection (Tortoise & Rabbit) In this video, I have explained the concepts of Dynamic programming using Visualization, which makes it easy to grasp the underlying concepts. Jul 28, 2024 路 In this article, I’ll walk you through 20 patterns that will make learning DP much easier. Solutions in Python, Java, C++, JavaScript, and C#. Example 2: Input: s = "aaa Acceptance Rate 77. Can you solve this real interview question? Coin Change - You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money. Mar 21, 2024 路 Welcome to my Dynamic Programming (DP) Problem Sheet! This is an ever-growing list of DP problems from LeetCode. Dynamic Programming is not always the smartest approach — and in many real interview cases, you don’t even need it. In how many distinct ways can you climb to the top? Example 1: Input: n = 2 Output: 2 Explanation: There are two ways to climb to the top. Dynamic programming is a powerful technique used to solve optimization problems by breaking them down into simpler subproblems and storing their solutions to avoid redundant computations. Sep 6, 2023 路 LeetCode Day 38 Dynamic Programming (1/17) 4 minute read Published: September 06, 2023 Move to the practices of Dynamic Programming, its a huge block, including sections on basic topics, knapsack problems, house robber, stock problems and subsequence problems. Dynamic programming is an optimization technique that is used to optimize recursion problems. This is the best place to expand your knowledge and get prepared for your next interview. 1 What is Dynamic programming Dynamic programming in both contexts it refers to simplifying a May 23, 2025 路 Tackling Jump Game Problems on LeetCode Jump Game is a coding problem where you determine if you can reach the last index of an array, starting from the first, with each element representing the maximum jump length from that position. Aug 14, 2021 路 Start asking to get answers python dynamic-programming backtracking recursive-backtracking Hello LeetCode community, I often get stuck on dynamic programming problems, especially when they involve multiple states or complex transitions. I have solved around 350 Jul 23, 2025 路 Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more. e. Problems are either Easy Jan 6, 2021 路 Coin Change - Dynamic Programming Bottom Up - Leetcode 322 NeetCode 1M subscribers Subscribe LeetCode Explore is the best place for everyone to start practicing and learning on LeetCode. Whether you were a complete beginner or already an expert in dynamic programming, hopefully you have taken something from this card. Unique Paths II 64. All houses at this place are arranged in a circle. 9 % Topics String Dynamic Programming Backtracking Choose a type Sort by: Best Feb 4, 2021 路 Must do Dynamic programming Problems Category wise Mahesh Nagarwal 237563 Feb 04, 2021 container with most water maximum-sum-of-distinct-subarrays-with-length-k You can find all of them here: Right now, these visualizations cover questions that use the Two-Pointer Technique and Sliding Window algorithm patterns, with more pattern coverage (including but not limited to Dynamic Programming, Backtracking, Binary Trees) coming soon. You may assume that you have an Jun 2, 2022 路 Dynamic Programming II Dynamic Programming III 1434. 1. Return the fewest number of coins that you need to make up that amount. Given an array of different So In order to get good at dynamic programming questions you solve smaller dynamic programming questions and then memoize them. I want to get better at identifying patterns and designing DP solutions quickly. Our top interview questions are divided into the following series: Easy Collection Medium Collection Hard Collection to help you master Data Structure & Algorithms and improve your coding skills. Contribute to gouthampradhan/leetcode development by creating an account on GitHub. Jun 9, 2025 路 The “Word Break” problem (LeetCode 139) is a classic that often pops up in technical interviews. The coding interview process might get ridiculously difficult, and the preparation process ain’t any easier … Jun 26, 2024 路 JavaScript LeetCode Meditations — Chapter 12: Dynamic Programming Dynamic programming (DP) is one of those concepts that is a bit intimidating when you hear it for the first time, but the crux of it is simply breaking problems down into smaller parts and solving them, also storing those solutions so that we don't have to compute them again. But I’m currently struggling through Dynamic Programming. What next? Practice makes perfect! Below is a list of additional practice problems you can use to continue building on your dynamic programming skills. -Charles Mingus Jr. This is a famous dynamic programming problem which is ver Dynamic Programming ¶ 3563. Partition Equal Subset Sum 279 … In-depth solution and explanation for LeetCode 5. The following problems are simple yet impactful, designed to Can you solve this real interview question? Palindromic Substrings - Given a string s, return the number of palindromic substrings in it. Can you solve this real interview question? House Robber - You are a professional robber planning to rob houses along a street. Given a list of stones positions (in units) in sorted ascending order, determine if the frog can cross the river by landing on the last stone Coding interviews stressing you out? Get the structure you need to succeed. Meanwhile, adjacent houses have a security system connected, and it will automatically contact the Apr 30, 2019 路 Sort Dynamic Programming Binary search Recursion Sliding window Greedy + Backtracking If you can solve them quickly, you would have a high chance to pass coding interview. Mar 30, 2025 路 It introduces you to dynamic programming concepts in a simple context. Each day is an integer from 1 to 365. Unique Paths 63. The purpose of this tip isn’t to explain how dynamic programming works. It features a structured playlist of LeetCode problems categorized by data structures and algorithms, with status updates on each problem's progress. 3% 0045 Jump Game II Go Medium 39. Return true if you can reach the last index, or false otherwise. The river is divided into some number of units, and at each unit, there may or may not exist a stone. You have the following three operations permitted on a word: * Insert a character * Delete a character * Replace a character Example 1: Input: word1 = "horse", word2 = "ros" Output: 3 Explanation: horse -> rorse (replace 'h Contribute to rohanmandrekar/leetcode development by creating an account on GitHub. Dynamic Programming Solutions of Leetcode with Patterns of DP problems. Climbing Stairs 72. Additionally, it offers resources for improving Leetcode solutions. Climbing Stairs 62. 6 % Topics Math Dynamic Programming Recursion Memoization Companies Similar Questions Mar 14, 2024 路 Discover how to crack the LeetCode Climbing Stairs problem using dynamic programming, with step-by-step solutions in Python, TypeScript, and Java. Mar 18, 2018 路 Solve Problems on LeetCode using Divide and Conquer, Dynamic Programming, and Backtracking 1. I think it pretty much covers all the patterns necessary for leetcode. Each house has a certain amount of money stashed, the only constraint stopping you from robbing each of them is that adjacent houses have security systems connected and it will automatically contact the police if two adjacent houses were broken into on the same night Templates and formulas on common coding interview patterns and problem topics. There are two key attributes that a problem must have in order for dynamic programming to be applicable: optimal substructure and overlapping sub-problems. We went through a lot of (almost all) DP problems on leetcode and came up a study list here. A curated list of leetcode questions grouped by their common patterns Dynamic Programming: This section talks about how to solve dynamic programming problems in Scala Parsing: This section explores unique approach to parsing problems with Parser Monad Functional Reactive Programming: This section presents FRP approach to a small number of (currently only one :p) problems. Non-negative Integers without Consecutive Ones Dynamic Programming IV 1269. Dynamic Programming - Leet Code - Dynamic Programming You have solved 1 / 202 problems. If a problem can be solved by combining optimal solutions to non-overlapping sub-problems, the strategy is called “divide and In the context of algorithms, dynamic programming is a technique for solving a certain type of problem by breaking it into subproblems, solving those subproblems, and using the results to find the solution to the original problem. No matter if you are a beginner or a master, there are always new topics waiting for you to explore. This video explains an important dynamic programming interview problem which is to count all possible unique paths to reach from first cell to the last cell in a grid. A naive recursive solution would have exponential time complexity, which is inefficient for larger inputs. Number of Ways to Stay in the Same Place After Some Steps 1639. Maximum Subarray 62. In this post, I want to break down why DP feels overhyped, where it actually shines, and how to know whether you even need it in the first place. The days of the year in which you will travel are given as an integer array days. Simple Subproblems: there should be a simple way of defining subproblems with just a few indices like i, j, k… Subproblem Optimization Subproblem Overlap: optimal solutions to unrelated subproblems can contain subproblems in common It uses Memoization Algorithm, which means store and return the value This is LeetCode's official curated list of Top classic interview questions to help you land your dream job. But, like any other topic, the fastest way to learn it is by understanding different patterns that can help you solve a wide variety of problems. Longest Palindromic Substring 53. If you choose a job that Here I will record all the useful information that I learned or gained from praticing LeetCode problems - BrandonBian/leetcode Level up your coding skills and quickly land a job. . com/list/eeo6ays7. Given a rows x cols matrix grid representing a field of cherries. Jun 27, 2024 路 Learn dynamic programming, BFS, and memoization techniques to solve the Coin Change problem on LeetCode with step-by-step Python solutions. Today’s POTD is a reminder that Dynamic Programming isn’t about memorizing tabulation patterns . Lexicographically Smallest String After Adjacent Removals 3562. Jul 6, 2025 路 Learning Dynamic Programming Has Never Been EasierCrack big tech at algomap. That's the end of the Dynamic Programming 1 explore card. Target Sum - Dynamic Programming - Leetcode 494 - Python NeetCode 1M subscribers Subscribe A growing list of Dynamic Programming solutions! Edit Distance - Dynamic Programming - Leetcode 72 - Python NeetCode 945K subscribers 3. Maximum Product Subarray - Dynamic Programming - Leetcode 152 NeetCode 1M subscribers Subscribe Dynamic Programming easy to understand real life examples | Study Algorithms Brute Force algorithms with real life examples | Study Algorithms The Geek Hub for Discussions, Learning, and Networking. com/problems/regular-expression-matching/ 0022 - Generate Parentheses (Medium) Acceptance Rate 73. Maximum Profit from Trading Stocks with Discounts 3559. A substring is a contiguous sequence of characters within the string. Jul 24, 2024 路 Subsets II - 90 7. In-depth solution and explanation for LeetCode 322. Fundamentals of Dynamic Programming 1. Count Sorted Vowel Strings 494. 5% 0032 Longest Valid Parentheses Go Hard 32. io!#coding #leetcode #programming #interview 01/13/2020 (Dynamic Programming): 01/13/2020 (Expand Around Center): Given a string s, find the longest palindromic substring in s. While most people dread dynamic programming, the topic can be easily learned. Better than official and forum solutions. How to start learning DP Dynamic Programming with Leetcode. The code is merely a snippet (as solved on LeetCode) & hence is not executable in a c++ compiler. It’s a fantastic way to explore different algorithmic approaches, especially dynamic programming. 4% 0022 Generate Parentheses Go Medium 72. Level up your coding skills and quickly land a job. These are great problems to understand dynamic programming and greedy algorithms. Maximum Product Subarray - Dynamic Programming - Leetcode 152 NeetCode 1M subscribers Subscribe This is LeetCode's official curated list of Top classic interview questions to help you land your dream job. For example, given s = "leetcode", dict = ["leet", "code"]. 1 step + 1 step 2. Minimum Path Sum 70. That means the first house is the neighbor of the last one. Gain familiarity with LeetCode’s platform and its problem structure. Although this article is a bit overdue, I am This Repository contains my solutions to Dynamic Programming I study plan on LeetCode. 2 steps Example 2: Input: n = 3 Output: 3 Explanation: There Feb 6, 2023 路 About two months ago, I wrote another blog about the fundamental concepts of Dynamic Programming, and I said I’ll write more DS&A solutions for it. Level up your coding skills and quickly land a job. There are total 241 dp tagged problems in LeetCode as of Today, and 26 of them are locked so I only solved the public ones. You're given the startTime, endTime and profit arrays, return the maximum profit you can take such that there are no two jobs in the subset with overlapping time range. I can knock out Graphs, Trees and all the other types of questions. The answer to our problem is dfs(0) - the maximum money starting from the first house. 4 % Topics Array Dynamic Programming Matrix Companies Unique Paths Medium May 29, 2025 路 Chapter Twelve: Dynamic Programming Dynamic programming (DP) is one of those concepts that is a bit intimidating when you hear it for the first time. Could you share tips on: We look at finding a more optimal way of multiplying a number of matrices together using dynamic programming! Dynamic Programming easy to understand real life examples | Study Algorithms Brute Force algorithms with real life examples | Study Algorithms In this live coding session, we break down LeetCode 139: Word Break, one of the most fundamental dynamic programming problems used in coding interviews at top tech companies. Longest Palindromic Substring in Python, Java, C++ and more. Complete the study plan to win the badge! The Ultimate Dynamic Programming Roadmap Hey guys, I've seen a lot of discussions about how to study DP in this subreddit. Can you solve this real interview question? Word Break - Given a string s and a dictionary of strings wordDict, return true if s can be segmented into a space-separated sequence of one or more dictionary words. But the crux of it is simply breaking problems down into smaller parts and solving them. Get Interview Ready In 6 Weeks. Can you solve this real interview question? Painting the Walls - You are given two 0-indexed integer arrays, cost and time, of size n representing the costs and the time taken to paint n different walls respectively. Introduction: 20% of the leetcode problems. Why DP Feels Overrated?* Let’s start with some honesty. How should I think about a dynamic programming problem? When I look at some DP problems, my first intuition is always a basic array approach. Jan 16, 2024 路 Introduction This blog post covers the Jump Game problem on Leetcode. There are two painters available: * A paid painter that paints the ith wall in time[i] units of time and takes cost[i] units of money. First, the conc Level up your coding skills and quickly land a job. Let us explore the intuitions of dynamic Greedy Algorithms with real life examples | Study Algorithms Dynamic Programming easy to understand real life examples | Study Algorithms Detailed solution explanation for LeetCode problem 139: Word Break. I find it challenging to identify the subproblems and understand how to store and reuse their solutions effectively. The frog can jump on a stone, but it must not jump into the water. For each position i, it checks all possible previous positions j to see if s[0:j] can be segmented (i. I know I have to find the sub problems May 17, 2022 路 A cheet sheet of dp problems in leetcode. Example 1: Input: nums = [2,3,1,1,4] Output: true Explanation: Jump 1 step from index 0 to 1 Can you solve this real interview question? Edit Distance - Given two strings word1 and word2, return the minimum number of operations required to convert word1 to word2. This blog will guide you through the problem, different approaches to solve it, and explain an efficient solution step by step. Jun 29, 2020 路 Fork Me on GitHub馃帹 The ART of Dynamic Programming: An Intuitive Approach Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. This is LeetCode's official curated list of Top classic interview questions to help you land your dream job. Paint House 276. Can you solve this real interview question? Combination Sum IV - Given an array of distinct integers nums and a target integer target, return the number of possible The document outlines a comprehensive coding preparation resource, including links to YouTube videos and Instagram for a channel named 'Hack Code'. However, I struggle to transition from this basic approach to formulating a dynamic programming solution. Dynamic Programming # No. Understand how to approach a coding problem methodically. A string is a palindrome when it reads the same backward as forward. Target Sum 416. Feb 22, 2018 路 Additionally: “strong bond between recursion, backtracking, depth first search, dynamic programming”+ DAGs (directed acyclic graphs) and their topological ordering. Each house has a certain amount of money stashed. Show - Studocu Sign in to access the best study resources Guest user Add your university or school My Library Information Can you solve this real interview question? Maximum Profit in Job Scheduling - We have n jobs, where every job is scheduled to be done from startTime[i] to endTime[i], obtaining a profit of profit[i]. Good luck! Dynamic Programming is nothing more than smart recursion, or in other words, recursion without repetition. * A free painter that paints any wall in 1 Acceptance Rate 67. Return true because "leetcode" can be segmented as "leet code". Coin Change in Python, Java, C++ and more. Number of Ways to Form a Target String Given a Dictionary 1866. Title Solution Difficulty TimeComplexity SpaceComplexity Favorite Acceptance 0005 Longest Palindromic Substring Go Medium 32. House Robber 256. Number of Ways to Wear Different Hats to Each Other 0600. Dynamic programming Everyone's favorite - dynamic programming is a programming method that solves problems by breaking them into smaller problems. Can you solve this real interview question? Frog Jump - A frog is crossing a river. Maximum Weighted K-Edge Path 3539. Edit Distance 121. Generate Parentheses in Python, Java, C++ and more. In both contexts it refers to simplifying a complicated problem by breaking it down into simpler sub-problems in a recursive manner. Jul 21, 2024 路 Dynamic Programming (DP) involves breaking down problems into smaller subproblems and solving them using a bottom-up or top-down approach. It takes n steps to reach the top. Here are the other problems in this series: Jump Game II The solution uses dynamic programming where f[i] represents whether the substring s[0:i] can be segmented using words from the dictionary. I’ll share when to use each pattern and provide links to LeetCode problems you can practice to learn them better. 6K Target Sum - Dynamic Programming - Leetcode 494 - Python NeetCode 1M subscribers Subscribe The solution implements a top-down dynamic programming approach using memoization search. Understanding the Problem Statement The Coin Change problem is a classic question in dynamic programming. And in MAANG interviews, this thinking process matters far more than the final code. I was on the Meta careers website and in their interview guide it says they don't ask dynamic programming questions? Has anyone done interview with Meta recently and did they get asked DP questions? In-depth solution and explanation for LeetCode 45. Example 1: Input: s = "leetcode", wordDict = ["leet","code"] Output: true Explanation: Return May 6, 2022 路 Dynamic Programming DP. Oct 9, 2024 路 In this blog, we’ll explore what dynamic programming is, how to implement it in C#, its real-world applications, and we’ll also break down a few classic problems from LeetCode. Here's how the implementation works: We define a recursive function dfs(i) that represents the maximum amount of money that can be robbed starting from the i -th house. If that amount of money cannot be made up by any combination of the coins, return -1. At the beginning when we want to recursively solve a Use dynamic programming: dp (i) will be the answer to the problem for books [i:]. Can you solve this real interview question? Climbing Stairs - You are climbing a staircase. The code written is purely o Sep 7, 2024 路 Leetcode Day 29 - Dynamic Programming 62 Unique Paths | 63 Unique Paths II | 343 Integer Break | 96 Unique Binary Search Trees. Hello all, I am currently in the final stage of the interview process for a certain company that loves asking Dynamic Programming questions. Use this pattern for problems with overlapping subproblems and optimal substructure. Example 1: Input: s = "abc" Output: 3 Explanation: Three palindromic strings: "a", "b", "c". When we have a large number of recursion calls, in which each subproblem can be called many times with the same result, we can memorize these results so that we can avoid re-computing them when we subsequently solve problems of larger sizes. Paint Fence 303. 8% 0042 Trapping Rain Water Go Hard 59. Jun 13, 2024 路 Understanding Dynamic Programming With Leetcode Examples Part-II Dynamic programming is a highly efficient technique widely used to tackle various challenges. Learn how to solve two jump game problems in different ways. I have listed them from easy to hard and also linked resources to learn each pattern. Find Maximum Number of Non Intersecting Substrings 3544. Note that the same word in the dictionary may be reused multiple times in the segmentation. Jul 28, 2024 路 Dynamic Programming (DP) is arguably the most difficult topic for coding interviews. Dynamic Programming Questions and Approaches and Solutions The repository contains solutions to various problems on leetcode. The document encourages community engagement and sharing of resources among learners. We can solve this problem Oct 19, 2018 路 Target problems Dynamic Programming is targeting to solve most of the Optimization Problems. Train tickets are sold in three different ways: * a 1-day pass is sold for costs[0] dollars, * a 7-day pass is sold for costs[1] dollars, and * a A growing list of Dynamic Programming solutions! In-depth solution and explanation for LeetCode 22. The Geek Hub for Discussions, Learning, and Networking. May 8, 2025 路 In this blog, we’ll explain how to approach LeetCode dynamic programming problems, what patterns to focus on, and how to build the confidence to tackle even the toughest interview questions. Range Sum Query - Immutable May 29, 2024 路 Understanding Dynamic Programming With Leetcode Examples Part-I Dynamic programming is an optimization technique that is commonly used to identify the optimal solution among other alternatives. Sample LeetCode Problem Problem: 198. It’s also about storing those solutions so that we don't have to compute them again. I've spent months working through DP problems for both tech interviews and competitive programming, and I wanted to share a complete guide that LeetCode Explore is the best place for everyone to start practicing and learning on LeetCode. Each section provides key concepts, problem-solving techniques, and quizzes to reinforce learning. I have tried watching neetcode and grokking Dynamic Programming but it has not stuck. This video explains a very important programming interview problem which is the rod cutting problem. Nov 30, 2024 路 Why Start with Beginner-Friendly Problems? Before diving into advanced topics like dynamic programming or graph theory, it’s essential to: Build a strong foundation in basic programming concepts. it’s about learning how to think. Jump Game II in Python, Java, C++ and more. You may assume that the maximum length of s is 1000. com/problems/longest-palindromic-substring/ 0010 - Regular Expression Matching (Hard) Author: @ColeB2 | https://leetcode. It is particularly useful for optimization problems. Can you solve this real interview question? Minimum Cost For Tickets - You have planned some train traveling one year in advance. Oct 9, 2024 路 Mastering Dynamic Programming in C#: LeetCode Problems and Solutions Dynamic programming (DP) is a powerful optimization technique used to solve complex problems by breaking them down into smaller … Dynamic Programming Questions Download PDF Dynamic Programming Questions 5. Good luck! LeetCode's Interview Crash Course covers essential data structures and algorithms including arrays, strings, linked lists, hashing, stacks, queues, trees, graphs, heaps, greedy algorithms, binary search, backtracking, and dynamic programming. Can you solve this real interview question? House Robber II - You are a professional robber planning to rob houses along a street. , f[j] is true) and if s[j:i] is a valid word in the dictionary. Here’s the mindset that actually b 76 docs tagged with "Dynamic Programming" View all tags 0005 - Longest Palindromic Substring (Medium) Author: @wkw | https://leetcode. Nov 16, 2025 路 Hey everyone! Dynamic Programming is often considered the hardest topic in DSA, but it doesn't have to be. You’ll learn how to The Geek Hub for Discussions, Learning, and Networking. This post is first in a series of jump game related problems. Find Sum of Array Product of Nov 24, 2024 路 The Coin Change problem is a fundamental question in computer science and is widely used to understand dynamic programming concepts. Dec 20, 2020 路 In this post, we will looking at a Hard-rated Dynamic Programming question from Leetcode, Cherry Pickup II, and how to determine if a given problem is Dynamic Programming problem or can it solved with a greedy approach. I strongly advise you to try to solve problems on your own before looking at the solutions provided here. As a result, we can reduce the time complexity from That's the end of the Dynamic Programming 1 explore card. Dynamic Programming Pattern Outline Dynamic programming is a method for solving complex problems by breaking them down into simpler subproblems and storing the results of these subproblems to avoid redundant calculations. First of all, I participated the monthly challange April & May, so this really helped me to build a habbit of daily problem solving Then I started to Level up your coding skills and quickly land a job. Interviewers like this question because it tests your ability to recognize patterns and optimize recursive solutions. ginfzdeduadyzxlwdpnqrpjvlkrrlqxfoefhiyoffsnpzweoodyggknggqtmkvmskyzgsvgzhqcgkvjhntdb