Get an overview of four pillars of object-oriented programming (OOP) and see their suitable real life examples. What is OOP? Picture a cluttered garage🛠️. Tools are scattered everywhere, various shelves are overflowing with items and you have to move things around just to find a hammer. Of course, we can argue that it’s our garage and we know… Read More »
You are provided with an array of size 8*N and you are provided a permutation of 8*N consecutive integers comprising of all the elements from ‘a’ to ‘a + 7*N ‘. Your task is to minimize the difference of the sum of the squares of the elements at even positions and the odd positions and print the permutation.… Read More »
Given an array with all distinct elements, you need to find the occurrence of every element among all the possible subarrays of the array. Examples: Input: arr[] = { 2 , 1 , 3 } Output: 3,4,3 Explanation : All the possible subarrays are {2},{2,1},{2,1,3},{1},{1,3},{3}. Clearly 2 occurs 3 times 1 occurs 4 times and 3 occurs 3… Read More »
In dart programming, Lists are used for the collection of data. We declare just variables instead of declaring a separate variable for each value of the collection. Lists are indexable so that we access the values using index ( starts from 0 ). In this article, we will see how to compare two Lists in the dart. For… Read More »
Given a number n (n>=1 && n<=1018), your task is to convert it to 1 in minimum operation and constant space and time complexity. In one operation you can either – Subtract 1 from n if n>1. (or) Divide n by one of its proper divisor. Examples:- Input: n=2 Output: 1 2–>1. first move:- subtract 1 from n… Read More »
Given two numbers n and m, generate all distinct subsequences of length m using numbers from 1 to n. You may repeat a number. INPUT: n=5, groups=3 OUTPUT: 1,1,3 1,2,2 1,3,1 2,1,2 2,2,1 3,1,1 INPUT: n=7, groups=3 OUTPUT: 1,1,5 1,2,4 1,3,3 1,4,2 1,5,1 2,1,4 2,2,3 2,3,2 2,4,1 3,1,3 3,2,2 3,3,1 4,1,2 4,2,1 5,1,1 APPROACH: We need to generate… Read More »
A default parameter is a value provided in function declaration that is automatically assigned by the compiler if caller of the function doesn’t provide a value for the parameter with default value. Following is a simple Python example to demonstrate use of default parameters. We don’t have to write 3 Multiply functions, only one function works by using… Read More »
In this problem a string is given, our task is to check the string contains even number of 1’s and odd number 0’s or not. Examples: Input : “101010100” Output : Accept Input : “111001010101” Output : Not Accept Approach used in function: we firstly declare set s which contain ‘0’ and ‘1’ and create set of the… Read More »
Considering a clique of n vertices. Determine if it is possible to divide the set of vertices into two equal halves such that there is an edge between any two vertices of the two halves. A clique is a graph with an edge between any two distinct vertices. Examples: Input : 5 Output : NO Input : 2… Read More »
In Python, dictionary is a collection which is unordered, changeable and indexed. Dictionaries are written with curly brackets, and they have keys and values. It is used to hash a particular key. Let’s see how to remove spaces from dictionary values in Python. Method #1: Using translate() function here we visit each value one by one and remove… Read More »
