Programming & Computer Science Answers

1- Consider the following set of processes, with the length of the CPU-burst time given in

milliseconds:

Process burst Time Priority

P1 10 3

P2 1 1

P3 2 3

P4 1 4

P5 5 2

a. Draw a Gantt chart to show how these processes would be scheduled.

b. Give the turnaround time (total time from first arrival into ready state until CPU-burst

is completed) of each process.

c. Give the waiting time (total time spent in the Ready state) of each process.

d. Give the average waiting time of all the processes.

e. Create Program for SJF for above data.

2- Suppose the following three processes arrive for execution at the arrival times

indicated.

Process Arrival Time Burst Time

P1 0.0 8

P2 0.4 4

P3 1.0 1

a. Develop code for SJF scheduling using above given data.

Write 3 paragraphs where you explain the below

Concept.

Using Logging and Tracing  [20]

Using Application Profiling [20]

Using Performance Counters [20]

Each paragraph should at least have 250 words. Reference your work using Harvard style.

Develop a data structure similar to a binary tree. Using a standard 8 X 8 chessboard, show the 

knight’s movements in a game. As you may know, a knight’s basic move in chess is two forward 

steps and one sidestep. Facing in any direction and given enough turns, it can move from any 

square on the board to any other square. 

If you want to know the simplest way your knight can move from one square (or node) to 

another in a two-dimensional setup, you will first have to build a function like the one below.

knight plays ([0,0], [1,2]) == [[0,0], [1,2]]

knight plays ([0,0], [3,3]) == [[0,0], [1,2], [3,3]]

knight plays ([3,3], [0,0]) == [[3,3], [1,2], [0,0]]

a.create a script for a board game and a knight.

Crud with Python django and mysql connectivity

1. Create a Form with validation(Name, age, Phone no, Address, profile pic,)

2. List the Entered Details in View form

3. Edit the name and phone number in

4. Delete the list one by one

class String {

public:

String();

String(const char *str);

String(const String &);

String(int x);

char &operator[](int i);

const char operator[](int i) const;

String operator+(const String &str) const;

String operator+(const char &str) const;

String operator+(char *&str) const;

String operator-(const String &substr) const;

String operator-(const string &substr) const;

String& operator=(const String&);

String& operator=(char*);

String& operator=(const string&);

bool operator==(const String&) const;

bool operator==(const string&) const;

bool operator==(char *) const;

bool operator!();

// Function-Call Operators

int operator()(char) const;

int operator()(const String&) const;

int operator()(const string&) const;

int operator()(char *) const;

// Conversion Op

operator int() const;

~String();

};

ostream& operator<<(ostream& output, const String&);

istream& operator>>(istream& input, String&);