1,518 Answered Questions for the topic computer science

04/09/20

ER Diagrams - relations
The SingLanka Record Bar has decided to store information about musicians who perform on its albums in a database. Consider the following requirements to design a database for the company... more
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Computer Science Coding

04/08/20

I need help creating a wins dictionary and a losses dictionary to keep track if the number of games won or lost for a particular number of rolls.

I can provide the code i have already
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Computer Science Computer General Computer Java

04/07/20

Computer Science Tree Question
Hello,I am currently attempting to complete a project for my computer science class and we have to implement a ternary tree as a sort of database of different cat objects. I know that my method to... more
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04/07/20

Realtional Database vs File Based System
Explain the advantages of RELATIONAL DATABASE MODEL over file based system
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Computer Science Computer General Computer C++

04/06/20

Complete the function to replace any period by an exclamation point. Ex: "Hello. I'm Miley. Nice to meet you." becomes
Complete the function to replace any period by an exclamation point. Ex: "Hello. I'm Miley. Nice to meet you." becomes:"Hello! I'm Miley! Nice to meet you!"#include <iostream>#include... more
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04/05/20

Write True or False for each of the following statements. (Corecct if fales)
1 If a method does not return a value, the return value type must be static. 2 The expression !(true || true && false || !true) is evaluated to true. 3 Every array has a length that... more
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04/05/20

Find and correct the error(s) in each of the following code fragments :
1. The following code should create an integer array and increment all the array elements by 1:int[] a = new int[5]; for( int i=0; i <= a.length; i++ ) ++a;2. The following code should compare... more
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Computer Science Computer Architecture

04/04/20

Computer architecture problems
How many bits are required to address a 4M X 16 main memory ifa)    Main memory is byte addressable?  b)    Main memory is word addressable? 2. Suppose that a 16M X 16 main memory is built using... more
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Computer Science Math Computer C++

04/04/20

Write a C++ Program that works in this way.
1. Define a C++ function with the name evaluateBook. The function receives as one argument the name of the file to be processed (i.e., the book's file). So that if you pass the... more
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Computer Science Math Computer General Computer

04/04/20

I need help fixing my program??
#include <iostream>#include <vector>#include <cstring>#include <string>using namespace std;#define MAX_WORD_LENGTH (255)typedef struct _TSynonym{ char... more
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04/04/20

Write a program that replaces words in a sentence.
Write a program that replaces words in a sentence. The input begins with an integer indicating the number of word replacement pairs (original and replacement) that follow. The next line of input... more
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Computer Science Career Development

04/03/20

What kind of Career should I pursue in technology?
There are so many categories of technology work how do I choose what is the best fit for me.
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04/01/20

Programming question
Till now, there have been no COVID-19 cases identified in the country XYZ. Scientists and researchers there have conducted a research and discovered that, in a street with houses (imagine that the... more
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Computer Science

04/01/20

two's complement
plz help me i have spent hours trying to figure this out.1. Solving 1110 – 1110 using 2’s complement will lead to a problem; by using 7-bit data representation. Explain what the problem is and... more
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Computer Science Python Coding

03/31/20

Counting strings in positional arguments python (order cost calculator problem)
The goal is to calculate the cost of a order at a pizza shop. For example:cost([ ], ["pepperoni"], ["ham", "anchovy], drinks = ["small"])should calculate the price of one plain pizza, one pizza... more
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Computer Science

03/31/20

Write a code segment that will store a dinner selection in option1 based on the values of rsvp and selection. The intended behavior of the code segment is described below.
Write a code segment that will store a dinner selection in option1 based on the values ofrsvp and selection. The intended behavior of the code segment is described below.If rsvp is true, the code... more
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Computer Science Math Computer General Computer

03/30/20

Write a program that removes all spaces from the given input.
Write a program that removes all spaces from the given input.Ex: If the input is:Hello my name is John.the output is:HellomynameisJohn.Your program must define and call the following function. The... more
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Computer Science Math Computer C++

03/29/20

Write a program that removes all spaces from the given input.Your program must define and call the following function. The function should return a string representing the input string without spaces.
Write a program that removes all spaces from the given input.Ex: If the input is:Hello my name is John.the output is:HellomynameisJohn.Your program must define and call the following function. The... more
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Computer Science Math Computer C++

03/29/20

Your program must define and call the following function. The function should return true if the input year is a leap year and false otherwise.
A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes... more
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Computer Science Math C++ Computer Programming

03/29/20

Add two more statements to main() to test inputs 3 and -1. Use print statements similar to the existing one (don't use assert).
Add two more statements to main() to test inputs 3 and -1. Use print statements similar to the existing one (don't use assert).#include <iostream>using namespace std;// Function returns... more
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03/23/20

Please write a C++ program on Fibonacci sequence

Numerical analysisThe Fibonacci Sequence is 0, 1, 1, 2, 3, 5, 8, 13,........: the first two terms are 0 and 1, and each term thereafter is the sum of the two preceding terms:Fib[n] = Fib[n-1] +... more
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Computer Science Computer C++ Computer Programming

03/19/20

Please write a c++ code for the following conversion

CONVERSIONWrite and Test a C++ development coded program to display a table of miles converted to kilometers. The output should be a table of miles and their equivalent kilometers.The miles should... more
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Computer Science Computer Programming

03/02/20

Write a class with constructors and destructors functions.
A point in a two-dimensional plane having coordinate as (x,y), can be represented by a class whose private data members are x and y. Write the constructor and destructor functions of the class. The... more
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03/02/20

Constructors and destructors
Write a program to show that, the constructor and destructor functions of a globally declared object are the first and last functions, respectively to be called in a program.
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03/02/20

Constructors with overloading and with default parameters
Write a program to show that constructors follow the property of function overloading as well as default parameter. Also, show that in case of constructor also, default parameter may create problem... more
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