Answer:
Explanation:
Following are the Semaphores:
Customers: Counts waiting customers;
Barbers: Number of idle barbers (0 or 1)
mutex: Used for mutual exclusion.
Cutting: Ensures that the barber won’t cut another customer’s hair before the previous customer leaves
Shared data variable:
count_cust: Counts waiting customers. ------------copy of customers. As value of semaphores can’t access directly.
// shared data
semaphore customers = 0; semaphore barbers = 0; semaphore cutting = 0; semaphore mutex = 1;
int count_cust= 0;
void barber() {
while(true) { //shop is always open
wait(customers); //sleep when there are no waiting customers
wait(mutex); //mutex for accessing customers1
count_cust= count_cust-1; //customer left
signal(barbers);
signal(mutex);
cut_hair();
}
}
void customer() {
wait(mutex); //mutex for accessing count_cust
if (count_cust< n) {
count_cust= count_cust+1; //new customer
signal(customers); signal(mutex);
wait(barbers); //wait for available barbers get_haircut();
}
else { //do nothing (leave) when all chairs are used. signal(mutex);
}
}
cut_hair(){ waiting(cutting);
}
get_haircut(){
get hair cut for some time; signal(cutting);
}
The answer is edu. Hope this helps.
Friends can challenge us, confuse us, and sometimes, we might wonder why we bother. But friendship is as important to our wellbeing as eating right and exercising. What’s more, friendships help us grow through each year of our lives.
The friends we meet in school teach us how to be patient, wait our turn, reach out, and try new hobbies. When we move into young adulthood we learn more about taking responsibility, finding a career path, and seeking out people as mentors.
As we continue into our 40s and beyond, we learn to weather the ups and downs in life, and once again friends provide a sounding board and place for us to grow. Friendship is key to our success with all our relationships and it can create a sense of purpose in our lives.
The people we bring into our lives as friends will show us how to forgive, laugh, and make conversation. The basic components of any relationship, from our marriage to our coworkers, are all founded in friendship. We learn how to interact with people because of our friends, even the ones that are opposite from us or share a different worldview.
We don’t just talk with others but learn from them. We understand the process of meeting new acquaintances and finding out what makes them tick. These people help push us out of our comfort zones while still providing a safe emotional space for us to be totally ourselves.
One of the most overlooked benefits of friendship is that it helps keep our minds and bodies strong. In fact, it’s as important to our physical health as eating well and keeping fit. A recent Harvard study concluded that having solid friendships in our life even helps promote brain health.
Complete Question:
Define a function CoordTransform() that transforms its first two input parameters xVal and yVal into two output parameters xValNew and yValNew. The function returns void.
The transformation is new = (old + 1) * 2. Ex: If xVal = 3 and yVal = 4, then xValNew is 8 and yValNew is 10.
Answer:
The function written in C++ is as follows:
void CoordTransform(int xVal, int yVal)
{
int xValNew = (xVal + 1) * 2;
int yValNew = (yVal + 1) * 2;
cout<<"New x: "<<xValNew<<endl;
cout<<"New y: "<<yValNew;
}
Explanation:
This line defines the function
void CoordTransform(int xVal, int yVal)
{
This line declares and calculates xValNew
int xValNew = (xVal + 1) * 2;
This line declares and calculates yValNew
int yValNew = (yVal + 1) * 2;
This line prints xValNew
cout<<"New x: "<<xValNew<<endl;
This line prints yValNew
cout<<"New y: "<<yValNew;
}
<em>See attachment for complete program that includes the main method</em>
Answer:
The Name of the General Ledger that Tracks all Bitcoin Transactions is Called the Blockchain.
A Blockchain is a Growing List of Records, known as Blocks, that are linked together using Cryptography. Each Block in a Blockchain contains a cryptographic Hash of the Previous Block, a timestamp, and also the transaction Data.