Linear Queue: A Linear Queue is generally referred to as Queue. It is a linear data structure that follows the FIFO (First In First Out)… Read More

# Category Archives: Queue

Given an integer N, representing the number of nodes present in an undirected graph, with each node valued from 1 to N, and a 2D… Read More

Given a Binary Tree consisting only ‘(‘ and ‘)’ a level is considered to be balanced if the nodes of the level having parenthesis are… Read More

Given a Binary Tree consisting of N nodes, the task is to replace all the nodes that are present at even-numbered levels in a Binary… Read More

Given a binary tree, the task is to print the inorder traversal of the modified tree obtained after shifting all the nodes of the given… Read More

Given a Binary Tree consisting of nodes with values 0 and 1 only, the task is to find the total sum of the decimal equivalents… Read More

Given an array arr[] consisting of N integers and an integer K, the task is to print the maximum sum possible in a subsequence satisfying… Read More

Given a binary tree consisting of N nodes, the task is to check if the nodes in the top view of a Binary Tree forms… Read More

Given a Binary Tree consisting of N nodes, the task is to find the sum of Bitwise AND of the sum of all leaf nodes… Read More

Given an array arr[] and an integer K, the task is to print the position of the array elements, where the ith value in the… Read More

Given an integer N denoting the number of connected cities ( numbered from 1 to N ) and a 2D array arr[][] consisting of pairs… Read More

Priority Queue is an extension of the Queue data structure where each element has a particular priority associated with it. It is based on the… Read More

Given a Binary Tree consisting of N nodes, the task is to count the number of levels in a Binary Tree such that the set… Read More

Given a grid mat[][] of size M * N, consisting of only 0s, 1s, and 2s, where 0 represents empty place, 1 represents a person… Read More

Given an integer N which denotes the number of slots, and an array arr[] consisting of K integers in the range [1, N] repreand. Each… Read More