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The problem asks us to determine the maximum total calories that can be burned while visiting every block exactly once in an arbitrary order. We are given an integer array heights, where heights[i] represents the height of a block.
This problem asks us to find the nth smallest positive integer whose binary representation contains exactly k ones. In other words, we are working with numbers that, when written in binary, have a specific number of bits set to 1.
The problem asks us to count stable subarrays in an integer array capacity. A subarray capacity[l..r] is stable if it satisfies two conditions: its length is at least 3, and the first and last elements are each equal to the sum of the elements strictly between them.
The problem asks us to rotate only the non-negative elements of an integer array nums to the left by k positions in a cyclic manner, while leaving all negative elements fixed in their original positions.
The problem asks us to determine how many ways we can choose exactly one number from each row of a given m x n matrix such that the greatest common divisor (GCD) of all chosen numbers is 1.
We are given a string s consisting only of decimal digits. The string length is n, and indices are zero-based. For every index i, we need to determine whether i is a good index.
The problem asks us to process an integer array nums and determine the minimum length of a prefix that we can remove so that the remaining array becomes strictly increasing.
This problem asks us to transform an array nums1 of length n into another array nums2 of length n + 1 using the minimum number of operations. The allowed operations are increasing or decreasing any element of nums1 by 1, or appending any element of nums1 to the end of the array.
We are given a string s consisting only of lowercase English letters. The allowed operation is very specific: if a character currently appears at least twice in the string, we may delete exactly one occurrence of that character.
The problem asks us to find the lexicographically smallest string after performing exactly one reverse operation on a contiguous prefix or suffix of a given string s. The string consists only of lowercase English letters and can have a length up to 1000 characters.
This problem asks us to design a real time auction system that supports inserting, updating, removing, and querying bids efficiently. Each bid is uniquely identified by the pair (userId, itemId). A user may have at most one active bid for a particular item.
The problem requires us to find the length of the longest subarray in an integer array nums where the count of distinct even numbers equals the count of distinct odd numbers.
The problem asks us to compute a score for a given string s. The string may contain lowercase English letters, spaces, and digits. We need to count two quantities: - v, the number of vowels in the string. - c, the number of consonants in the string.
Before I write the full guide, I want to verify one important detail: LeetCode 3720 appears to be a very recent problem, and the exact intended optimal approach depends on the precise judge behavior and hidden constraints.
Here is the complete, detailed technical solution guide for LeetCode 3717 - Minimum Operations to Make the Array Beautiful following your exact formatting rules. The problem asks us to transform an integer array nums into a beautiful array.
We are given a tree with n nodes and n - 1 edges. Every node has a binary color represented by the strings start and target. An operation consists of selecting an edge and toggling both of its endpoints.
The problem gives us a string s that contains only three possible characters: 'a', 'b', and 'c'. We must find the longest substring where every distinct character in that substring appears the same number of times.
The problem asks us to compute the sum of all elements in the array whose total frequency is divisible by a given integer k. To understand the requirement clearly, we need to focus on two important details: First, we must determine how many times each number appears in the array.
We are given an array nums and two distinct target XOR values, target1 and target2. A partition divides the array into contiguous, non-empty blocks. Every element must belong to exactly one block, and the blocks must cover the entire array.
Here is a complete, detailed technical solution guide for LeetCode 3711 - Maximum Transactions Without Negative Balance, following your formatting instructions precisely. The problem provides an array transactions of integers representing sequential money movements in an account.
The problem asks us to split a set of n points in a 2D Cartesian plane into exactly two non-empty groups, such that the minimum Manhattan distance among all pairs of points within each group (the partition factor) is maximized.
This problem asks us to analyze user reactions and determine which users exhibit a strong preference for a particular reaction type. The input is a table named reactions, where each row represents a reaction given by a user to a specific content item.
This problem asks us to design a system that tracks Alice's exam scores over time and efficiently computes the total score for any given time interval.
The problem presents an undirected graph with n nodes labeled from 0 to n-1 and m edges. Each edge has a repair cost, and initially, all edges are damaged. We can spend a certain amount of money to repair all edges whose cost is less than or equal to that amount.
The problem asks us to count all pairs of positive integers (a, b) such that their sum equals a given integer n and neither a nor b contains the digit 0 in their decimal representation. These integers are called no-zero integers.
We are given an array words containing n lowercase strings. Every string has the same length m. Two strings are considered similar if we can repeatedly apply the following operation to either string: - Shift every character forward by one position in the alphabet.
The problem asks us to find the maximum possible bitwise AND of any subset of size m from an array nums after performing up to k increment operations. Each operation allows us to increase any element in the array by 1.
We are given an integer array nums, and we must determine the maximum possible length of a subsequence whose bitwise XOR is not equal to zero. A subsequence is formed by deleting zero or more elements from the array while preserving the relative order of the remaining elements.
The problem asks us to count the number of centered subarrays in a given integer array nums. A subarray is called centered if the sum of its elements is equal to at least one element within that subarray.
The problem asks us to count the number of arrays of length n where each element is in the range [l, r], no two consecutive elements are equal, and no three consecutive elements are strictly increasing or strictly decreasing. These arrays are termed ZigZag arrays.
The problem asks us to compute the number of ways to paint n sheets using exactly two distinct colors, subject to constraints on the maximum number of sheets each color can paint.
Here is the complete technical solution guide for LeetCode 3699 - Number of ZigZag Arrays I, formatted exactly according to your specifications. The problem asks us to count arrays of length n where each element is within the range [l, r] and satisfies the ZigZag constraints.
We are given an array of distinct 4-letter words. Our goal is to construct every valid word square consisting of exactly four different words: - top forms the top row. - bottom forms the bottom row. - left forms the left column. - right forms the right column.
We are given between 2 and 12 sorted lists. At any moment we may choose any two existing lists and merge them. If the two lists are and , the merge cost is After the merge, the two lists disappear and are replaced by their sorted union.
I can write the full detailed guide, but I need to flag one issue first: the problem statement for LeetCode 3698 - Split Array With Minimum Difference appears inconsistent with the provided Go stub and the current LeetCode catalog.
The problem gives us an array of strings, words, and asks us to find the maximum distance between two indices i and j where the words at those positions are different. More formally, we want to find two indices such that: - words[i] !
The problem asks us to analyze the frequency distribution of characters in a string and identify a particular group of characters based on how often they appear. We are given a string s containing only lowercase English letters.
Here is a complete, rigorous study companion-style solution guide for LeetCode 3685 - Subsequence Sum After Capping Elements, following your requested format and voice. We are given an integer array nums of size n and a positive integer k.
This problem asks us to find the shortest contiguous subarray whose distinct-value sum is at least k. The important detail is that we do not sum all elements in the subarray.
This problem gives us a string s and an integer k. Our task is to reverse only the first k characters of the string while leaving the remaining characters unchanged.
The problem gives us a positive integer num and asks whether it is a Complete Prime Number. A number qualifies as a Complete Prime Number if every prefix and every suffix of its decimal representation is prime. For a number with digits d1 d2 d3 ...
This problem asks us to find the longest contiguous subarray that simultaneously satisfies two independent conditions: 1. The bitwise XOR of all elements in the subarray is equal to 0. 2. The subarray contains an equal number of even and odd elements.
This problem presents a grid of size m x n where each cell contains a value of 0, 1, or 2. Each cell contributes both a score and a cost: a cell with value 0 adds 0 to both score and cost, a cell with value 1 adds 1 to score and 1 to cost, and a cell with value 2 adds 2 to…
The problem asks us to find the number of distinct subarrays in a sorted array nums such that the sum of elements in the subarray is divisible by a given integer k.
The problem asks us to find the smallest positive multiple of k that is not present in a given integer array nums. In other words, if we consider the infinite sequence of numbers k, 2k, 3k, 4k…, we need to identify the first number in this sequence that does not appear in nums.
The problem gives us an array nums consisting of positive integers and asks us to find the length of the longest contiguous subarray that satisfies the Fibonacci property. A subarray is a contiguous segment of the original array.
We are given a string s consisting only of '(' and ')', along with an integer k. A substring is considered k-balanced if it is exactly: For example: - k = 1 → "()" - k = 2 → "(())" - k = 3 → "((()))" The operation is not performed just once. Instead, we repeatedly: 1.
The problem is asking us to select exactly k distinct subarrays from a given integer array nums such that the sum of their "values" is maximized. Each subarray's value is calculated as the difference between its maximum and minimum elements.
The problem gives us two arrays, nums1 and nums2, of equal length n. We are allowed to repeatedly perform a special operation on nums1.
The problem gives us an array nums of non-negative integers. We must choose two subsequences: - The first subsequence has XOR value X. - The second subsequence has XOR value Y. The two subsequences: - May be empty.
This problem models a stream of arriving items. On each day, exactly one item arrives, and each item has a type represented by an integer. We are given two parameters: - w, the size of the sliding window. - m, the maximum number of times any item type may appear within a window.
This problem takes place on a one dimensional number line. We are given positions of robots and positions of walls. Every robot owns exactly one bullet, and that bullet can be fired either to the left or to the right.
This problem gives us an array nums containing positive integers and an integer k. We may repeatedly remove any contiguous subarray whose sum is divisible by k.
The problem asks us to identify books that exhibit polarized opinions based on reading session ratings. We have two tables: books, which contains metadata about each book including its title, author, genre, and number of pages, and readingsessions, which records individual…
Great! We will cover LeetCode 3627 - Maximum Median Sum of Subsequences of Size 3 in a full, comprehensive technical guide following your formatting requirements. The problem gives us an integer array nums with a length divisible by 3.
This problem asks us to identify employees who spend an excessive amount of their working time in meetings. We are given two tables: The employees table contains employee information, including their unique identifier, name, and department.
The problem asks us to determine the minimum number of moves to reach a target point (tx, ty) from a starting point (sx, sy) on an infinite 2D grid. The movement rules are specific: from any point (x, y), you can move either right by max(x, y) units or up by max(x, y) units.
The problem provides an integer array nums where every element appears exactly three times, except for one element that appears once and one element that appears twice.
We are given a rooted tree with root node 0. Every node has a cost, and the score of a root-to-leaf path is the sum of the costs of all nodes along that path. We are allowed to increase the cost of any nodes by any non-negative amount.
The problem asks us to work with an undirected tree rooted at node 0, where each node has a value vals[i] and a parent par[i].
The problem gives us two arrays, x and y, both of length n. Each position i represents a pair (x[i], y[i]). We need to select exactly three distinct indices i, j, and k such that the corresponding x values are all different: - x[i] != x[j] - x[j] != x[k] - x[k] !
Here’s a detailed technical solution guide for LeetCode 3566 following your formatting rules: The problem asks us to determine whether a given array of distinct positive integers can be split into two non-empty, disjoint subsets, such that the product of the elements in each…
We are given an undirected tree rooted at node 1. Every edge initially has weight 0, and we must assign each edge a weight of either 1 or 2. The problem asks us to choose any node x that has the maximum depth in the tree.
This problem asks us to identify the maximum number of non-intersecting substrings from a given string word such that each substring is at least four characters long and starts and ends with the same character.
The problem requires identifying prime numbers from all possible substrings of a given string of digits and summing the three largest unique primes.
This problem asks us to compute the shortest path between nodes in an implicit undirected graph defined by a nums array and a maxDiff. Each node i corresponds to nums[i]. There is an edge between nodes i and j if the absolute difference of their values is at most maxDiff.
The problem is asking us to compute, for each unit type from 0 to n-1, the number of that unit equivalent to a single unit of type 0. We are given a list of direct conversion relationships between units.
This problem asks us to identify product pairs that are frequently purchased by the same customers. The goal is to support a recommendation feature similar to "Customers who bought this also bought...
We are given two very large integers l and r as decimal strings and a base b where 2 ≤ b ≤ 10. For every integer x in the inclusive range [l, r], we consider its representation in base b.
This problem asks us to find the minimum time required to eliminate all bacterial strains given a single initial white blood cell (WBC) and the ability of WBCs to split into two after some splitTime.
You are given an integer array nums, and you want to create at least k non-overlapping subarrays. Every chosen subarray must have length exactly x, and after performing some modifications, every element inside each chosen subarray must become equal.
We are given two strings, s and t. We may choose any substring from s and any substring from t. Either substring is allowed to be empty.
This problem is a hierarchical organization analysis task over an employee table that forms a tree structure. Each employee has a unique employeeid, a name, a salary, and a managerid. The employee whose managerid is NULL is the CEO and serves as the root of the organization tree.
We are given an array original and a range constraint for every position in the form of bounds[i] = [ui, vi]. We need to count how many arrays copy satisfy two conditions.
We are given a square of side length side. Every point in the input lies somewhere on the boundary of this square. We must choose exactly k points from the given set.
We are given a collection of axis-aligned squares. Each square is represented by three integers: - xi: x-coordinate of the bottom-left corner - yi: y-coordinate of the bottom-left corner - li: side length The square therefore occupies the region: We must find the smallest…
We are given a string s consisting only of digits '0' through '4', and an integer k. For any substring subs whose length is at least k, we may choose two characters: - Character a must appear an odd number of times in the substring.
The problem is asking us to manipulate a directed weighted graph in order to minimize the maximum edge weight while satisfying two constraints: every node must be able to reach node 0, and no node may have more outgoing edges than a given threshold.
This problem combines weighted interval scheduling with an additional constraint: we may select at most 4 intervals, and if multiple selections achieve the same maximum total weight, we must return the lexicographically smallest list of original indices.
We are given a lowercase English string s. Every letter has a unique "mirror" letter obtained by reversing the alphabet. For example: - 'a' ↔ 'z' - 'b' ↔ 'y' - 'c' ↔ 'x' and so on. We process the string from left to right.
We are given a string word of length n and an integer numFriends. In every round, Alice splits the entire string into exactly numFriends non-empty pieces. Every possible valid split is considered exactly once. Every piece produced by every split is placed into a box.
Here’s a full technical solution guide following your requested format for LeetCode 3401 - Find Circular Gift Exchange Chains: This problem asks us to analyze a table of gift exchanges in a Secret Santa setting and identify circular chains of gift exchanges.
The problem gives us a matrix grid of size m x n containing non-negative integers. Each column must become strictly increasing, meaning for each column j, the condition grid[i][j] < grid[i+1][j] must hold for all 0 <= i < m-1.
The problem gives us an integer n and asks us to find the largest prime number that satisfies two conditions: 1. It is less than or equal to n. 2. It can be written as the sum of one or more consecutive prime numbers starting from 2.
We are given an array nums of length n and an integer k. For every contiguous subarray of length k, we must compute its inversion count, then return the smallest inversion count among all such windows.
The coursecompletions table records every course completed by every user. Each row contains the user, the course they completed, the completion date, and the rating they gave that course. The problem asks us to identify common learning pathways among strong students.
We are given an array nums and a fixed integer k. A single operation allows us to choose any element and either increase it by exactly k or decrease it by exactly k. We may perform as many operations as needed. For each query [l, r], we only consider the subarray nums[l..r].
The problem asks us to split a string into as many non-empty substrings as possible, with one important restriction: the first character of every substring must be different from the first character of every other substring.
This problem asks us to compute the total waviness of every integer in an inclusive range [num1, num2]. For a single number, waviness is defined as the number of digits that are either peaks or valleys. A digit is a peak if it is strictly larger than both adjacent digits.
The problem asks us to count "stable" subarrays within a given array nums. A subarray is stable if it contains no inversions, which means that for any two indices i < j in the subarray, nums[i] <= nums[j]. Essentially, a stable subarray is non-decreasing.
The problem gives us an integer array nums and asks us to choose three elements a, b, and c from distinct indices such that the expression: is as large as possible. The important detail is that the three elements must come from different positions in the array.
The problem gives us a string s containing one or more lowercase words separated by single spaces. From this original string, we conceptually build a new string t using a special expansion rule.
We are given a cyclic array nums, which means the array is considered to wrap around from the last element back to the first element. We want to partition the entire cycle into at most k contiguous subarrays.
We are given two strings, s and target, of the same length n. The goal is to rearrange the characters of s into a palindrome and then choose, among all possible palindromic permutations, the lexicographically smallest one that is strictly greater than target.
We are given an integer array nums, and we are allowed to rearrange its elements in any order before computing a score. The score of a rearranged array arr is defined as: The sign alternates between positive and negative positions.
The problem gives us a positive integer n and asks us to remove every digit '0' from its decimal representation. After all zero digits have been removed, we must return the resulting value as an integer. In other words, we first view the number as a sequence of decimal digits.
The problem asks us to construct a positive integer n of exactly num digits such that the sum of its digits equals sum.
This problem asks us to identify subscribers who appear likely to churn based on their subscription history. The data is stored in the subscriptionevents table, where each row represents a subscription-related action performed by a user.
This problem asks us to compute a sum across all non-root nodes in a tree based on ancestor relationships and the property of perfect squares. We are given a rooted tree of n nodes, represented as an edge list. Each node has a positive integer value from the nums array.
The problem asks us to determine if a given string s can be split into two non-empty substrings such that the sum of the alphabetic positions of characters in the left substring is equal to the sum in the right substring.