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Articles by Sunidhi Bansal
Page 77 of 81
Print middle level of perfect binary tree without finding height in C language
The program should print the middle level of a binary tree e.g. if there are 4 levels in a binary tree than the program must print the level 2 nodes but the demand here is to calculate the level without finding the height.Perfect binary tree is a tree in which interior nodes must have two children and all leave nodes should be at the same level or depth.Here, Interior nodes 21 and 32 both are having childrenLeaf nodes are 41, 59, 33 and 70 all lies at the same level.Since it is satisfying both the properties it’s a perfect binary ...
Read MorePrint leaf nodes in binary tree from left to right using one stack in C++
Program should print the leaf nodes of a binary tree from left to right but the challenge involves is using of only one stackThrough push() function insert nodes of a binary tree and through pop() operation display the leaf nodes.Leaf nodes are the end nodes whose left and right pointer is NULL which means that particular node is not a parent node.ExampleInput : 12 21 32 41 59 33 70 Output : 41 59 33 70Stack is a data structure which is a LIFO structure in which top pointer will point to the last elements inserted so the leaf nodes ...
Read MorePrint the longest prefix of the given string which is also the suffix of the same string in C Program.
Given a string in which we have to check that the length of the longest prefix which is also a suffix of the string like there is a string “abcab” so here “ab” is of length 2 and is the longest substring with same prefix and suffix.ExampleInput: str[] = { “aabbccdaabbcc” } Output: 6 Input: abdab Output: 2If we will start the pointer from start and end of the string than they will get overlapped at some point so instead of doing that we will break the string from middle and start matching left and right string. If they are ...
Read MorePrint Leaf Nodes at a given Level in C language
The task involves printing leaf nodes of a binary tree at given level k which is specified by the user.Leaf nodes are the end nodes whose left and right pointer is NULL which means that particular node is not a parent node.ExampleInput : 11 22 33 66 44 88 77 Output : 88 77Here, k represents the level of a tree which needs to be printed. The approach used here is traversing every node and checking whether the node is having any pointer. Even if there is one pointer that means either left or right or both than that particular ...
Read MorePrint modified array after multiple array range increment operations in C Program.
Given an array arr[m] with m number of integers and n, which is the value to be added in an array and r queries are given with some start and end. For each query we have to add value n from the start till the end of the limit in an array.ExampleInput: arr[] = {1, 2, 3, 4, 5} query[] = { { 0, 3 }, { 1, 2 } } n = 2 Output: If we run above program then it will generate following output: Query1: { 3, 4, 5, 6, 5 } Query2: { 3, 6, 7, 6, ...
Read MorePrint lower triangular matrix pattern from given array in C Program.
Given with the matrix of n x n the task is to print that matrix of n x n in lower triangular pattern.Lower triangular matrix is a matrix which has elements below the principle diagonal including the principle diagonal elements and rest elements as zero.Let’s understand this with help of a diagram −Above the elements in green are the elements below the principle diagonal and the red elements are the elements above the principle diagonal which are set as zero.ExampleInput: matrix[3][3] = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 ...
Read MorePrint the arranged positions of characters to make palindrome in C Program.
You are provided with a string str with some length n. Print the position of every element of the string so it can form a palindrome, else print a message “No palindrome” on screen.What is palindrome?Palindrome is a word, sequence of characters which reads same from the reverse or backward as from the forward manner, like MADAM, racecar.To find a sequence or a word is palindrome we generally store the reverse of a word in a separate string and compare both if they are same then the given word or sequence is palindrome. But in this question we have to ...
Read MorePrint steps to make a number in form of 2^X – 1 in C Program.
Given a number n, we have to print the steps to make the number as in form of 2^X-1 by using Xor operation.We should XOR the number with any 2^M-1, where M is chosen by you, at odd step. At even step increment the number by 1Keep performing the step until n becomes 2^X-1, and print all the stepsExampleInput: 22 Output: Step 1 : Xor with 15 Step 2: Increase by 1 Step 3 : Xor with 7 Step 4: Increase by 1 Step 5 : Xor with 1 Input:7 Output: No Steps to be performedAlgorithmint ...
Read MorePrint the lexicographically smallest BFS of the graph starting from 1 in C Program.
We will be given a connected graph with N vertices M edges. So we have to print the lexicographically smallest BFS of the graph starting from 1.Lexicographically means in order starting from the given point till the end point is found.Vertices should be numbered from 1 to NExampleInput: N = 5 M = 5 edges(1, 4, arr) edges(3, 4, arr) edges(5, 4, arr) edges(3, 2, arr) edges(1, 5, arr) Output: 1 4 3 2 5Instead of doing a normal BFS traversal with a simple queue on the graph, we can use a priority queue(min ...
Read MorePrint string of odd length in ‘X’ format in C Program.
Given with a string program must print the string in ‘X’ format. For reference, see the image given below.Here, one variable can be used to print from left right(“i”) and other variable can used to print from right to left(“j”) and we can take other variable k which is used for space calculation.Below is the C++ implementation of the algorithm given.AlgorithmSTART Step 1 ->Declare Function void print(string str, int len) Loop For int i = 0 and i < len and i++ Set int j = len-1- i Loop For int k = ...
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