LeetCode 23xx
LeetCode problems 2300–2399
LeetCode 23xx
| # | Problem | Difficulty | Time | Notes |
|---|---|---|---|---|
| 2300 | Successful Pairs of Spells and Potions | 🟡 Medium | 35s | The problem asks us to determine, for each spell, how many potions … |
| 2301 | Match Substring After Replacement | 🔴 Hard | 1m 26s | The problem gives us a string s, a target string sub, and a list of… |
| 2302 | Count Subarrays With Score Less Than K | 🔴 Hard | 42s | The problem asks us to count the number of contiguous subarrays of … |
| 2303 | Calculate Amount Paid in Taxes | 🟢 Easy | 37s | This problem is asking us to simulate a progressive tax system. We … |
| 2304 | Minimum Path Cost in a Grid | 🟡 Medium | 1m 13s | The problem gives us a matrix called grid with m rows and n columns… |
| 2305 | Fair Distribution of Cookies | 🟡 Medium | 37s | The problem asks us to distribute a set of cookie bags among k chil… |
| 2306 | Naming a Company | 🔴 Hard | 1m 22s | The problem gives us a list of unique strings called ideas. We must… |
| 2307 | Check for Contradictions in Equations | 🔴 Hard | 1m 35s | This problem gives us a collection of equations of the form: Each v… |
| 2308 | Arrange Table by Gender | 🟡 Medium | 1m 33s | The problem asks us to rearrange the rows of a Genders table in a s… |
| 2309 | Greatest English Letter in Upper and Lower Case | 🟢 Easy | 58s | The problem gives us a string s containing only uppercase and lower… |
| 2310 | Sum of Numbers With Units Digit K | 🟡 Medium | 1m 2s | This problem asks us to construct a set of positive integers such t… |
| 2311 | Longest Binary Subsequence Less Than or Equal to K | 🟡 Medium | 47s | The problem asks us to find the length of the longest subsequence o… |
| 2312 | Selling Pieces of Wood | 🔴 Hard | 57s | The problem presents a rectangular piece of wood of size m x n and … |
| 2313 | Minimum Flips in Binary Tree to Get Result | 🔴 Hard | 35s | The problem presents a binary tree where leaf nodes represent boole… |
| 2314 | The First Day of the Maximum Recorded Degree in Each City | 🟡 Medium | 1m 34s | The problem gives us a database table named Weather that stores tem… |
| 2315 | Count Asterisks | 🟢 Easy | 1m 2s | The problem gives us a string s containing lowercase English letter… |
| 2316 | Count Unreachable Pairs of Nodes in an Undirected Graph | 🟡 Medium | 54s | The problem asks us to find the number of pairs of nodes in an undi… |
| 2317 | Maximum XOR After Operations | 🟡 Medium | 1m 5s | The problem gives us an integer array nums, and we may perform a sp… |
| 2318 | Number of Distinct Roll Sequences | 🔴 Hard | 39s | The problem is asking us to compute the total number of distinct se… |
| 2319 | Check if Matrix Is X-Matrix | 🟢 Easy | 1m 25s | The problem gives us a square matrix grid of size n x n. We must de… |
| 2320 | Count Number of Ways to Place Houses | 🟡 Medium | 46s | The problem presents a street with n plots on each side, for a tota… |
| 2321 | Maximum Score Of Spliced Array | 🔴 Hard | 48s | The problem presents two integer arrays, nums1 and nums2, of equal … |
| 2322 | Minimum Score After Removals on a Tree | 🔴 Hard | 43s | That is a long, multi-section technical guide with code, worked exa… |
| 2323 | Find Minimum Time to Finish All Jobs II | 🟡 Medium | 1m 1s | This problem asks us to assign jobs to workers in a way that minimi… |
| 2324 | Product Sales Analysis IV | 🟡 Medium | 54s | This problem asks us to analyze sales data to determine which produ… |
| 2325 | Decode the Message | 🟢 Easy | 57s | This problem is asking us to decode a secret message using a substi… |
| 2326 | Spiral Matrix IV | 🟡 Medium | 1m 12s | The problem gives us a linked list and asks us to place its values … |
| 2327 | Number of People Aware of a Secret | 🟡 Medium | 1m | The problem describes how a secret spreads over time. On day 1, exa… |
| 2328 | Number of Increasing Paths in a Grid | 🔴 Hard | 1m 10s | In this problem, we are given a two dimensional matrix called grid.… |
| 2329 | Product Sales Analysis V | 🟢 Easy | 1m 3s | This problem asks us to calculate how much money each user has spen… |
| 2330 | Valid Palindrome IV | 🟡 Medium | 1m 31s | The problem gives us a string s containing only lowercase English l… |
| 2331 | Evaluate Boolean Binary Tree | 🟢 Easy | 46s | The problem asks us to evaluate a full binary tree where each node … |
| 2332 | The Latest Time to Catch a Bus | 🟡 Medium | 48s | The problem asks us to determine the latest time we can arrive at a… |
| 2333 | Minimum Sum of Squared Difference | 🟡 Medium | 37s | I can do that, but the complete guide with all requested sections a… |
| 2334 | Subarray With Elements Greater Than Varying Threshold | 🔴 Hard | 1m 20s | This problem asks us to find a contiguous subarray whose elements a… |
| 2335 | Minimum Amount of Time to Fill Cups | 🟢 Easy | 1m 15s | The problem gives us an array amount of length 3. Each index repres… |
| 2336 | Smallest Number in Infinite Set | 🟡 Medium | 51s | The problem asks us to implement a data structure representing an i… |
| 2337 | Move Pieces to Obtain a String | 🟡 Medium | 1m 14s | The problem gives us two strings, start and target, both having the… |
| 2338 | Count the Number of Ideal Arrays | 🔴 Hard | 1m 18s | The problem asks us to count how many arrays of length n satisfy a … |
| 2339 | All the Matches of the League | 🟢 Easy | 58s | The Teams table contains the names of all teams participating in a … |
| 2340 | Minimum Adjacent Swaps to Make a Valid Array | 🟡 Medium | 3m 13s | The previous solution fails immediately under a counterexample chec… |
| 2341 | Maximum Number of Pairs in Array | 🟢 Easy | 52s | The problem asks us to take an array of integers, nums, and repeate… |
| 2342 | Max Sum of a Pair With Equal Sum of Digits | 🟡 Medium | 42s | The problem requires finding the maximum sum of a pair of numbers i… |
| 2343 | Query Kth Smallest Trimmed Number | 🟡 Medium | 41s | This problem provides a list of numbers represented as strings, all… |
| 2344 | Minimum Deletions to Make Array Divisible | 🔴 Hard | 1m 18s | The problem gives us two arrays of positive integers, nums and nums… |
| 2345 | Finding the Number of Visible Mountains | 🟡 Medium | 1m 32s | Each mountain is represented by a peak point (x, y). Because the mo… |
| 2346 | Compute the Rank as a Percentage | 🟡 Medium | 1m 37s | The problem provides a database table named Students, where each ro… |
| 2347 | Best Poker Hand | 🟢 Easy | 1m 6s | The problem gives us exactly five playing cards. Each card is repre… |
| 2348 | Number of Zero-Filled Subarrays | 🟡 Medium | 33s | The problem asks us to count the number of contiguous subarrays in … |
| 2349 | Design a Number Container System | 🟡 Medium | 1m 10s | The problem asks us to design a data structure that supports two op… |
| 2350 | Shortest Impossible Sequence of Rolls | 🔴 Hard | 56s | Here is a complete, detailed technical solution guide for LeetCode … |
| 2351 | First Letter to Appear Twice | 🟢 Easy | 1m 3s | The problem gives us a string s containing only lowercase English l… |
| 2352 | Equal Row and Column Pairs | 🟡 Medium | 1m 4s | The problem gives us a square matrix grid of size n x n, where ever… |
| 2353 | Design a Food Rating System | 🟡 Medium | 1m | The problem is asking us to implement a food rating system that sup… |
| 2354 | Number of Excellent Pairs | 🔴 Hard | 49s | The problem provides a 0-indexed array of positive integers nums an… |
| 2355 | Maximum Number of Books You Can Take | 🔴 Hard | 2m 20s | That is a long, multi-section technical reference document. I can p… |
| 2356 | Number of Unique Subjects Taught by Each Teacher | 🟢 Easy | 38s | The problem requires calculating the number of unique subjects each… |
| 2357 | Make Array Zero by Subtracting Equal Amounts | 🟢 Easy | 1m 6s | This problem gives us an array nums containing non-negative integer… |
| 2358 | Maximum Number of Groups Entering a Competition | 🟡 Medium | 49s | The problem asks us to partition a list of student grades into mult… |
| 2359 | Find Closest Node to Given Two Nodes | 🟡 Medium | 39s | The problem asks us to find a node in a directed graph with a very … |
| 2360 | Longest Cycle in a Graph | 🔴 Hard | 1m 14s | This problem gives us a directed graph represented by an array call… |
| 2361 | Minimum Costs Using the Train Line | 🔴 Hard | 37s | This problem models a scenario where you are traversing a train lin… |
| 2362 | Generate the Invoice | 🔴 Hard | 1m 7s | This is a SQL database problem involving two tables: |
| 2363 | Merge Similar Items | 🟢 Easy | 1m 7s | The problem gives us two collections of items, items1 and items2, w… |
| 2364 | Count Number of Bad Pairs | 🟡 Medium | 1m 17s | The problem asks us to count the number of bad pairs in an array. W… |
| 2365 | Task Scheduler II | 🟡 Medium | 1m 8s | The problem gives us an array tasks, where each value represents a … |
| 2366 | Minimum Replacements to Sort the Array | 🔴 Hard | 2m 19s | The problem asks us to transform a given integer array nums into a … |
| 2367 | Number of Arithmetic Triplets | 🟢 Easy | 2m 19s | The problem requires us to find the number of arithmetic triplets i… |
| 2368 | Reachable Nodes With Restrictions | 🟡 Medium | 2m 15s | That is a large, highly structured guide. To make sure I target the… |
| 2369 | Check if There is a Valid Partition For The Array | 🟡 Medium | 1m 15s | The problem gives us an integer array nums, and we must determine w… |
| 2370 | Longest Ideal Subsequence | 🟡 Medium | 1m 1s | In this problem, we are given a string s containing only lowercase … |
| 2371 | Minimize Maximum Value in a Grid | 🔴 Hard | 42s | The problem presents a matrix grid of size m x n with distinct posi… |
| 2372 | Calculate the Influence of Each Salesperson | 🟡 Medium | 1m 17s | This problem asks us to calculate the total sales value generated b… |
| 2373 | Largest Local Values in a Matrix | 🟢 Easy | 2m 19s | The problem gives us an n x n square matrix called grid, where each… |
| 2374 | Node With Highest Edge Score | 🟡 Medium | 46s | The problem asks us to analyze a directed graph where each node has… |
| 2375 | Construct Smallest Number From DI String | 🟡 Medium | 44s | The problem asks us to construct the lexicographically smallest num… |
| 2376 | Count Special Integers | 🔴 Hard | 1m 36s | The problem asks us to count how many integers in the range [1, n] … |
| 2377 | Sort the Olympic Table | 🟢 Easy | 1m 11s | This problem asks us to return the rows of the Olympic table in a v… |
| 2378 | Choose Edges to Maximize Score in a Tree | 🟡 Medium | 40s | This will be very large if done comprehensively and correctly under… |
| 2379 | Minimum Recolors to Get K Consecutive Black Blocks | 🟢 Easy | 1m 19s | The problem gives us a string called blocks, where each character r… |
| 2380 | Time Needed to Rearrange a Binary String | 🟡 Medium | 54s | This problem asks us to repeatedly transform a binary string accord… |
| 2381 | Shifting Letters II | 🟡 Medium | 1m 22s | This problem gives us a lowercase English string s and a list of sh… |
| 2382 | Maximum Segment Sum After Removals | 🔴 Hard | 1m 16s | The problem gives us two arrays, nums and removeQueries, both of le… |
| 2383 | Minimum Hours of Training to Win a Competition | 🟢 Easy | 1m 2s | The problem gives us two starting values, initialEnergy and initial… |
| 2384 | Largest Palindromic Number | 🟡 Medium | 40s | The problem asks us to form the largest palindromic integer using t… |
| 2385 | Amount of Time for Binary Tree to Be Infected | 🟡 Medium | 41s | This problem asks us to model the spread of an infection across a b… |
| 2386 | Find the K-Sum of an Array | 🔴 Hard | 27s | That is a long, structured reference document with multiple section… |
| 2387 | Median of a Row Wise Sorted Matrix | 🟡 Medium | 1m 25s | We are given an m × n matrix grid where every row is already sorted… |
| 2387 | Median of a Row Wise Sorted Matrix | 🟡 Medium | 1m 55s | The problem gives us an m x n matrix where every individual row is … |
| 2388 | Change Null Values in a Table to the Previous Value | 🟡 Medium | 41s | The problem asks us to process a database table, CoffeeShop, which … |
| 2389 | Longest Subsequence With Limited Sum | 🟢 Easy | 42s | This problem asks us to determine, for each query, the maximum numb… |
| 2390 | Removing Stars From a String | 🟡 Medium | 53s | This problem asks us to repeatedly process a string that contains l… |
| 2391 | Minimum Amount of Time to Collect Garbage | 🟡 Medium | 1m 20s | This problem models a garbage collection system with three separate… |
| 2392 | Build a Matrix With Conditions | 🔴 Hard | 43s | This guide is long enough that a complete, high quality response wi… |
| 2393 | Count Strictly Increasing Subarrays | 🟡 Medium | 46s | The problem asks us to count all strictly increasing subarrays in a… |
| 2394 | Employees With Deductions | 🟡 Medium | 56s | This problem asks us to identify employees whose monthly working ti… |
| 2395 | Find Subarrays With Equal Sum | 🟢 Easy | 33s | The problem asks us to determine whether there exist two contiguous… |
| 2396 | Strictly Palindromic Number | 🟡 Medium | 33s | The problem asks whether a given integer n is strictly palindromic.… |
| 2397 | Maximum Rows Covered by Columns | 🟡 Medium | 40s | This problem asks us to maximize the number of rows covered in a bi… |
| 2398 | Maximum Number of Robots Within Budget | 🔴 Hard | 44s | This problem asks us to determine the maximum number of consecutive… |
| 2399 | Check Distances Between Same Letters | 🟢 Easy | 1m 5s | This problem asks us to verify whether a string follows a very spec… |