Problem Statement Stone Game IV LeetCode Solution – Alice and Bob take turns playing a game, with Alice starting first. Initially, there are n stones in a pile. On each player’s turn, that player makes a move consisting of removing any non-zero square number of stones in the pile. Also, if a player cannot make a move, he/she …
Problem Statement The Minimum Path Sum LeetCode Solution – “Minimum Path Sum” says that given a n x m grid consisting of non-negative integers and we need to find a path from top-left to bottom right, which minimizes the sum of all numbers along the path. We can only move …
Problem Statement Min Cost Climbing Stairs LeetCode Solution – An integer array cost is given, where cost[i] is the cost of ith step on a staircase. Once you pay the cost, you can either climb one or two steps. You can either start from the step with index 0, or the step with …
Problem Statement The Different Ways to Add Parentheses LeetCode Solution – “Different Ways to Add Parentheses” states that given a string expression of numbers and operators. We need to return all possible results from computing all different possible ways to group numbers and operators. Return the answer in any order. …
Problem Statement The Generate Parentheses LeetCode Solution – “Generate Parentheses” states that given the value of n. We need to generate all combinations of n pairs of parentheses. Return the answer in the form of a vector of strings of well-formed parentheses. Example: Input: n = 3 Output: [“((()))”,”(()())”,”(())()”,”()(())”,”()()()”] Explanation: …
Problem Statement The Maximum Profit in Job Scheduling LeetCode Solution – “Maximum Profit in Job Scheduling” states that you’re given n jobs where each job starts from startTime[i] and ends at endTime[i] and obtaining the profit of profit[i]. We need to return the maximum profit that we can have such …
Problem Statement Range Sum Query 2D – Immutable Leetcode Solution – Given a 2D matrix matrix, handle multiple queries of the following type: Calculate the sum of the elements of matrix inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2, col2). Implement the NumMatrix class: NumMatrix(int[][] matrix) Initializes the object with the integer …
Problem Statement The Trapping Rain Water LeetCode Solution – “Trapping Rain Water” states that given an array of heights which represents an elevation map where the width of each bar is 1. We need to find the amount of water trapped after rain. Example: Input: height = [0,1,0,2,1,0,1,3,2,1,2,1] Output: 6 Explanation: Check …
Problem Statement The Partition to K Equal Sum Subsets LeetCode Solution – “Partition to K Equal Sum Subsets” states that you’re given the integer array nums and an integer k, return true if it is possible to have k non-empty subsets whose sums are all equal. Example: Input: nums = [4,3,2,3,5,2,1], k = 4 Output: …
Problem Statement The Coin Change 2 LeetCode Solution – “Coin Change 2” states that given an array of distinct integers coins and an integer amount, representing a total amount of money. We need to return the count of the total number of different possible combinations that sum to the amount. …