Kill Process LeetCode Solution

Problem Statement Kill Process LeetCode Solution – You have n processes forming a rooted tree structure. You are given two integer arrays pid and ppid, where pid[i] is the ID of the ith process and ppid[i] is the ID of the ith process’s parent process. Each process has only one parent process but may have multiple children processes. Only one process has ppid[i] = 0, …

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Palindrome Partitioning Leetcode Solution

Problem Statement The Palindrome Partitioning LeetCode Solution – “Palindrome Partitioning” states that you’re given a string, partition the input string such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of the input string. Example: Input: s = “aab” Output: [[“a”,”a”,”b”],[“aa”,”b”]] Explanation: There exist exactly 2 valid …

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Design Hit Counter LeetCode Solution

Problem Statement Design Hit Counter LeetCode Solution – Design a hit counter which counts the number of hits received in the past 5 minutes (i.e., the past 300 seconds). Your system should accept a timestamp parameter (in seconds granularity), and you may assume that calls are being made to the system in chronological order (i.e., timestamp is monotonically increasing). …

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Minimum Moves to Equal Array Elements LeetCode Solution

Problem Statement Minimum Moves to Equal Array Elements LeetCode Solution – Given an integer array nums of size n, return the minimum number of moves required to make all array elements equal. In one move, you can increment n – 1 elements of the array by 1. Example 1: Input  1: nums = [1, 2, 3] Output: …

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Jump Game Leetcode Solution

Problem Statement Jump Game Leetcode Solution – You are given an integer array nums. You are initially positioned at the array’s first index, and each element in the array represents your maximum jump length at that position. Return true if you can reach the last index, or false otherwise. Example: Input 1: nums = [2, …

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Symmetric Tree Leetcode Solution

Problem Statement The Symmetric Tree LeetCode Solution – “Symmetric Tree” states that given the root of the binary tree and we need to check if the given binary tree is a mirror of itself (symmetric around its center) or not? If Yes, we need to return true otherwise, false. Example: …

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Count and Say Leetcode Solution

Problem Statement The Count and Say LeetCode Solution – “Count and Say” asks you to find the nth term of the count-and-say sequence. The count-and-say sequence is a sequence of digit strings defined by the recursive formula: countAndSay(1) = “1” countAndSay(n) is the way you would “say” the digit string from countAndSay(n-1), which is then converted …

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Palindromic Substrings Leetcode Solution

Problem Statement The Palindromic Substrings LeetCode Solution – “Palindromic Substrings” asks you to find a total number of palindromic substrings in the input string. A string is a palindrome when it reads the same backward as forward. A substring is a contiguous sequence of characters within the string. Example: Input: s = “aaa” Output: …

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