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Articles by Prabhdeep Singh
Page 10 of 17
Minimize cost to reduce Array if for choosing every 2 elements, 3rd one is chosen for free
We are given an array it this problem and we have to remove all the elements of the array with the minimum cost required. We have to remove two elements at a time and add them to the total cost. Also, we can remove the third number without any cost if we remove two elements and the third element's value is at most equal to the minimum of them. Also, it is given that the given array will be of a size greater than 1. Sample Examples Input int arr[] = {7, 6, 5, 2, 9, ...
Read MoreFind the index at which bit must be set to maximize the distance between the next set bit
We are given an array that contains the binary numbers that are '0', and '1' only. We have to make a one-bit set of the given array which was earlier not the set bit (there will be at least a bit present in the given array which will not be a set bit) to set bit such that the number of indexes present in between the set bits of the final array will be at the maximum distance possible. Sample Examples Input int arr[] = {1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, ...
Read MoreFind the winner of the game where X picks 1, then Y picks 2, then X picks 3, and so on
There are two players, X and Y, who are playing a game. X will start the first and can pick 1 stone from the set of an unlimited number of stones after that Y will start and can pick the 2 stones, then X will pick 3, and so on the game will go alternatively until the sum of the total stones picked by X is less than or equal to the given number A or the sum of total stones picked by Y is less than or equal to another given number B. If the current sum of any ...
Read MoreMinimize the count of peaks and troughs in the given Array after at most one replacement
Peaks are defined as the point or index in the array where are both left and right sides values are smaller than the value of that index. And Troughs are defined as the point or index of the array where are both left and right sides values are greater than the value of that index. In this problem, we have given an array 'array' of size n of integers. Our task is to minimize or reduce the count of peaks and troughs of the given array by performing an operation. Operation is that we can replace at most one value of the ...
Read MoreCheck if string A can be converted to string B by changing A[i] to A[i+1] or A[i]..A[i+K-1] to A[i]+1 each
We are given two strings and we have to check if it is possible to convert the first string to another by performing any number of times a particular given task. The tasks that can be performed on the given first string only and the tasks are: Choose any index i such that i < length(A) -1 and swap ith character with the next character. We are given an integer k and we can choose any consecutive k indexes of the first string only if they are ...
Read MoreFind Binary String of size at most 3N containing at least 2 given strings of size 2N as subsequences
We are given three strings of equal size equal to 2*N, where N is an integer. We have to create a string of the size 3*N and at least two strings from the given strings be the subsequence of it. Also, the given strings are binary strings which means they only contain two different characters '0' and '1'. We will implement a code by traversing over the string and getting the frequency of the zeros and ones. Sample Examples Input string str1 = “11”; string str2 = “10”; string str3 = “10”; Output 110 ...
Read MoreLongest Common Subsequence with no Repeating Character
In a string, a subsequence is a string that can be formed by deleting some character from it which means it contains some character from the string may be all or none and all will be present in the same order of the string. Among two strings we have to find the longest common subsequence that will not contain any repeating characters. Sample Examples Input string str1 = "aabcadjmuorrrcc" string str2 = "adbcwcadjomrorlc" Output The length of the longest common subsequence is: 8 Explanation: In the above-given strings, we have the largest ...
Read MoreCapitalize 1st character of all words having at least K characters
In the English language while writing a sentence we need to start with the capital character and for any name of the city/person, etc we begin with the capital letter. Here in this problem, we are given a string and a number and we have to update the first character of all the words of the given string if their size is not less than k. Also, if the size of the words is more than k and their first character is already capitalized then we will leave it as it is. Sample Examples Input string str ...
Read MoreMinimize cost by splitting the given Array into subsets of size K and adding the highest K/2 elements of each subset into the cost
Splitting the array means we have to divide the array and make subsets. Here in this problem, we have given an array of integers with size n and integer k and our goal is to calculate the lowest cost by splitting the whole given array into the subsets of size k and adding the highest k/2 element of each subset into the cost. NOTE: here we consider a ceiling of k/2. Let’s see examples with explanations below to understand the problem in a better way. Sample Example Input n: 4 array: [ 3, 4, 2, 1 ...
Read MoreCalculate server loads using Round Robin Scheduling
Round robins scheduling is used in CPU scheduling, we are given some M number of servers and N number of requests. Each request has some arrival time and processing time. We have to find the load on each server using the Round-Robin Scheduling for which we are going to implement a program in C++ programming language using the priority queue and sets. Example Let's understand the problem with the help of an input-output example − Input int arrival_time[] = { 1, 2, 4, 6 }; int process_time[] = { 6, 1, 2, 2 }; int servers = 2; Output ...
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