Problem Statement Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) — Push element x onto stack. pop() — Removes the element on top of the stack. top() — Get the top element. getMin() — Retrieve the minimum element in the stack. …
Problem Statement In this problem, we have to design a parking lot. We have 3 kinds of parking spaces (big, medium and small). All these parking spaces has some fixed number of empty slots initially. Like, in big type of space, we can place at most b cars. In small …
The problem “Add and Search Word – Data structure design LeetCode” asks us to create or design a new data structure. Such that which can be used for adding or storing a word and searching the words where the search function can search even a regular expression from the word. …
Problem Statement The problem “Max stack” states to design a special stack which can perform these operations : push(x): push one element into the stack. top(): returns the element that is at the top of the stack. pop(): remove the element from the stack which is at the top. peekmax(): …
In Insert Delete GetRandom problem we need to design a data structure that supports all following operations in average O(1) time. insert(val): Inserts an item val to the set if not already present. remove(val): Removes an item val from the set if present. getRandom: Returns a random element from the current set …
Implement the following functions of stack data structure using standard operations of queue, push(x) –> Push an element x to the stack pop() –> Removes the element on top of stack top() –> Return the element on top of stack empty() –> Return whether the stack is empty Examples Input: …
In Find Median from the data Stream problem, we have given that integers are being read from a data stream. Find the median of all the elements read so far starting from the first integer till the last integer. Example Input 1: stream[ ] = {3,10,5,20,7,6} Output : 3 6.5 …
Least Recently Used (LRU) Cache is a type of method which is used to maintain the data such that the time required to use the data is the minimum possible. LRU algorithm used when the cache is full. We remove the least recently used data from the cache memory of …