Answer:
int sumid=0; /* Shared var that contains the sum of the process ids currently accessing the file */
int waiting=0; /* Number of process waiting on the semaphore OkToAccess */
semaphore mutex=1; /* Our good old Semaphore variable ;) */
semaphore OKToAccess=0; /* The synchronization semaphore */
get_access(int id)
{
sem_wait(mutex);
while(sumid+id > n) {
waiting++;
sem_signal(mutex);
sem_wait(OKToAccess);
sem_wait(mutex);
}
sumid += id;
sem_signal(mutex);
}
release_access(int id)
{
int i;
sem_wait(mutex);
sumid -= id;
for (i=0; i < waiting;++i) {
sem_signal(OKToAccess);
}
waiting = 0;
sem_signal(mutex);
}
main()
{
get_access(id);
do_stuff();
release_access(id);
}
Some points to note about the solution:
release_access wakes up all waiting processes. It is NOT ok to wake up the first waiting process in this problem --- that process may have too large a value of id. Also, more than one process may be eligible to go in (if those processes have small ids) when one process releases access.
woken up processes try to see if they can get in. If not, they go back to sleep.
waiting is set to 0 in release_access after the for loop. That avoids unnecessary signals from subsequent release_accesses. Those signals would not make the solution wrong, just less efficient as processes will be woken up unnecessarily.
Def countUppercase(s):
count=0
for i in s:
if i.isupper():
count+=1
s=s.replace(i, "")
else:
s=s.replace(i, "")
countUppercase(s)
return count
element=input("Enter the string: ")
string=countUppercase(element)
print("\nNumber of upper letter in the string: ",string)
For Arduinos, C++ wrappers around C are used. The goal is to hide the details with setting up and using the AVR, therefore, it's a pretty simple program.
Answer: C++
(P.S. copy and paste your question into google or safari and click on the link to reddit because there's a lot of good info about this there)
+ = <3
The Dialog Box gives extra data and demand client input. The Dialog Box is thought to be a transitory window an application makes to recover client input. An application regularly utilizes exchange boxes to incite the client for extra data for menu things. An exchange box for the most part contains at least one controls with which the client enters content, picks alternatives, or coordinates the activity.
Answer:
A compiler takes a lot of time to analyze the source code. However, the overall time taken to execute the process is much faster. An interpreter does not generate an intermediary code. Hence, an interpreter is highly efficient in terms of its memory.
Explanation:
