Sudhir sharma has Published 481 Answers

Practice questions on Arrays in C++

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:47:50
Array is a data structure that store data in the contagious memory location.Declaring arraysDeclaring arrays is done by the following syntax : int 1D[] - for 1-D array int 2D[][] - for 2-D arrayIf you initialize an array with lesser number of elements, rest are initialized with 0.Memory address of ... Read More

Practice questions on Strings in C++

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:45:27
String is an important part of programming. Strings are the array of character types. In competitive exams like GATE also it is an important topic. So let’s discuss some key points about string and then we will proceed to some questions that will help you clear your concepts about string.String ... Read More

Practice Questions on Time Complexity Analysis in C++

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:42:38
Time complexity of any algorithm is the time taken by the algorithm to complete. It is an important matrix to show the efficiency of the algorithm and for comparative analysis. We tend to reduce the time complexity of algorithm that makes it more effective.Find the time complexity of the following ... Read More

Practice Set for Recurrence Relations

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:39:04
Recurrence relations are equations that recursively defines a multidimensional array.Here we will solve so questions based on recurrence relations.Solve the recurrence reation:T(n) = 12T(n/2) + 9n2 + 2. T(n) = 12T(n/2) + 9n2 + 2. Here, a = 12 and b = 2 and f(n) = 9(n)2 + 2 It ... Read More

Precision of floating point numbers in C++ (floor(), ceil(), trunc(), round() and setprecision())

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:32:18
Precision of floating point numbers is the accuracy upto which a floating point number can hold the values after decimal.For example 10/6 = 1.6666666… these have recurring decimals which can take infinite memory spaces to be stored.So to avoid memory overflow in such cases the compiler set a precision limit ... Read More

Predefined Identifier __func__ in C

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:25:57
Identifier is the name given to an entity in programming to identify it in the program.Generally, identifiers are created by the programmer for efficient working but there are some predefined identifiers that are inbuilt in programming. For example, cout, cin, etc.Here, we will see one of these predefined identifiers of ... Read More

Predict the winner in Coin Game in C++

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:20:58
In this game, there are two players X and Y. our task is to predict who will win the game if both play optimally and X starts the game.GameIn the coin game, there are two piles with N and M number of coins. One of the players chooses any one ... Read More

Predict the winner of the game on the basis of the absolute difference of sum by selecting numbers in C++

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:18:31
In this problem, we are given an array of n numbers. And there are two players X and Y. Our task is to predict the winner of the game.For player X to win the absolute difference of the sum of numbers by X and Y should be a multiple of ... Read More

Preemptive and Non-Preemptive Scheduling

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:14:24
Preemptive Scheduling is a CPU scheduling technique that works by dividing time slots of CPU to a given process. The time slot given might be able to complete the whole process or might not be able to it. When the burst time of the process is greater than CPU cycle, ... Read More

Prefix Sum of Matrix (Or 2D Array) in C++

sudhir sharma
sudhir sharma
Published on 04-Feb-2020 07:11:34
In this problem, we are given a 2D array of integer values mat[][]. Our task is to print the prefix sum matrix of mat.Prefix sum matrix: every element of the matrix is the sum elements above and left of it. i.eprefixSum[i][j] = mat[i][j] + mat[i-1][j]...mat[0][j] + mat[i][j-1] +... mat[i][0].Let’s take ... Read More
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