Meeting Rooms II LeetCode Solution

Problem Statement The Meeting Rooms II LeetCode Solution – “Meeting Rooms II” states that you are given an array of meeting time intervals “intervals” where “intervals[i] = [ start[i], end[i] ]”, return the minimum number of conference rooms required. Example: intervals = [[0,30],[5,10],[15,20]] 2 Explanation: Meeting one can be done …

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Subarray Sum Equals K LeetCode Solution

Problem Statement The Subarray Sum Equals K LeetCode Solution – “Subarray Sum Equals K” states that you are given an array of integers “nums” and an integer ‘k’, return the total number of continuous subarrays whose sum equals to ‘k’. Example: nums = [1, 2, 3], k=3 2 Explanation: There …

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Longest Palindromic Substring LeetCode Solution

Problem Statement The Longest Palindromic Substring LeetCode Solution – “Longest Palindromic Substring” states that You are Given a string s, return the longest palindromic substring in s. Note: A palindrome is a word that reads the same backward as forwards, e.g. madam. Example:   s = “babad” “bab” Explanation: All …

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LRU Cache LeetCode Solution

Question Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. Implement the LRUCache class: LRUCache(int capacity) Initialize the LRU cache with positive size capacity. int get(int key) Return the value of the key if the key exists, otherwise return -1. void put(int key, int value) Update the value of the key if the key exists. Otherwise, add the key-value pair to …

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Split a String in Balanced Strings Leetcode Solution

Problem Statement In this problem, we are given a string of characters, containing only ‘R’ and ‘L’. We call a string balanced if it has the same number of ‘R’s and ‘L’s. We can split the given string into disjoint substrings. The goal is to find the maximum possible number …

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Combination Sum Leetcode Solution

The problem Combination Sum Leetcode Solution provides us an array or list of integers and a target. We are told to find the combinations that can be made using these integers any number of times that add up to the given target. So more formally, we can use the given …

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Unique Paths Leetcode Solution

The problem Unique Paths Leetcode Solution states that you are given two integers representing the size of a grid. Using the size of the grid, the length, and breadth of the grid. We need to find the number of unique paths from the top left corner of the grid to …

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Pow(x, n) Leetcode Solution

The problem “Pow(x, n) Leetcode Solution” states that you are given two numbers, one of which is a floating-point number and another an integer. The integer denotes the exponent and the base is the floating-point number. We are told to find the value after evaluating the exponent over the base. …

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Permutations Leetcode Solution

The problem Permutations Leetcode Solution provides a simple sequence of integers and asks us to return a complete vector or array of all the permutations of the given sequence. So, before going into solving the problem. We should be familiar with permutations. So, a permutation is nothing but an arrangement …

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House Robber II Leetcode Solution

In the “House Robber II” problem, a robber wants to rob money from different houses. The amount of money in the houses is represented through an array. We need to find the maximum sum of money that can be made by adding the elements in a given array according to …

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