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Hey guys I'm going through some questions, studying for exams and below is one which has had me stressing all afternoon. Consider a uniprocessor system executing concurrently two processes P and Q. Each process executes the code listed below, process P – procedure P, and process Q – procedure Q. … 
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Hi I'm currently going through some questions, basically studying up one bits for my operating systems unit and my particular weakness is algorithms and 'working out' type questions such as this one below. Consider the following snapshot of the system, with 4 types of resources and 3 processes, P1, P2 … 
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Hi ive made a code where a user makes a list and then displays it. he may also delete objects one by one. suppose i wished to clear all in one go. How would i go about doing this? thank you in advance. my code is below. all works except …
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Hi ive made a code does the following: 1. user makes a list of items 2. user adds more items to the list 3. list is displayed it uses Linked-Lists. here is the code #include <iostream> using namespace std; struct vote { char product[10]; vote *votePtr; }; void addNodes(vote *&startPtr,vote …
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hi im currently learning about linked list. Ive created a code which is supposed to let you type some numbers, then display them. i did this mostly by using information on the internet(code examples) and such. Hence there are obvious mistakes a bits i do not understand. Here is my …
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i have a code to read some products from a file.(.dat). it hasthe name, model number, price and its purpose. example. = knife 103 10 cut currently it can read the first 3. The question asks i make a derived class to read the purpose. Here is my code #include … 
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Hi im trying to learn polymorphism and i stumbled upon a question. Polymorphism to me means 1 with many forms. here is my code: // virtual members #include <iostream> using namespace std; class CPolygon { protected: int width, height; public: void display(); virtual string area () { return ("FIRST"); } …
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I have the following simple code. It consists of an array with 4 items. It first displays the items, then asks the user to delete as many as they want.(with an option to continue without deleting anything). After the user has removed or not removed items, the program will display …
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Hi ive made a program where it displays 10 products from a website. The customer then chooses a certain amount of those products. When the customer is finished choosing, the program will display all products the customer has chosen. Here is the full program. it works. #include <iostream> #include <fstream> …
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Hi ive made a code which does two things. First is read from a separate .dat file a product's model number, name a proce. The second bit allows the user to choose the product model. Depending on what the user chooses, only 1 of the products is displayed. So for …
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Hi ive made a program that does 3 things. 1. lets you enter 2 words to form one word ( red + cat = redcat ). 2. opens a separate txt file. 3. checks what you entered is the same as one of the words in the separate txt file. …
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Hi ive developed a code that does 2 things. It is about 20 students doing a test and getting a mark out of 100. First is using the class, it will look in a file, display the names of all the students(20) and their respective test scores.It will also show …
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Hi im trying to create a code where it would read from a separate text file some names and grades, then display them. However i am asked to use a class to "store"(if thats the word) them as below: #include <iostream> #include <fstream> using namespace std; class student { private: …
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Hi im currently doing some work with arrays and ive been working on this program. The goal is a user can add up to three products. Each product will have a name, model number and price. Once all is entered a list will pop out showing all the products with …
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hi ive been working from a few questions etc at college and im really stuck on this particularly one. i am given this code : [CODE] <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Prac3 Task 8</title> </head> <body> <h1>Task 8</h1> <!-- …
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hello, so im designing a simple prgram which calculates the cost of a ticket you buy. there are only 3 ticket options, namely a b and c. here is my code. [CODE] #include <iostream> using namespace std; const int PRICE = 3; int find(int [PRICE]); int main() { int nums[PRICE] …
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so im calculating the avergae of 5 numbers ive put in the array but when i compile i get a very large number heres my code [CODE]#include <iostream> using namespace std; int calcAverage() { int sum=0; int average; int TESTVALS[5] = {2, 18, 1, 27, 16}; for(int i = 1; …
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a 'challenge' question by my teacher asks me to look in my C++ book, and do a question. it asks me to: write a function powfun() and make it raise an integer number passed to it to a positive integer power and returns the result to the calling function. it …
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so i stumbled upon a few 'challenge questions' and decided to have a go. it should be my level. so anyways the question asked me to produce a code that makes me- input 2 numbers. the numbers get added ASWELL as the un numbers inbetween BUT excluding the numbers u …
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