Programming & Computer Science Answers

Create a flowchart that will able to read the age of an individual and determine if it qualified to vote or not. The qualifying age to vote is 18 and above. If the age is 18 below, display "too young!". Note that there is no such age as 0 or negative however display "Invalid age" if age is above 100 display "Out of range".

The user must enter a positive integer between 5 and 15. If this number is valid, the

user must also choose between a triangle (T or t) and a square (S or s). Display suitable

error messages if necessary; otherwise, the program must use an asterisk to draw a

triangle or a square of the chosen size and display. Use a Select Case structure to make

the decision. Display appropriate error messages where applicable.

Write a Java program to ask the user for their login and their password (both must be integer numbers) and repeat it as many times as necessary, until the entered login is "10" and the password is "0123".

Consider a system with 13 dedicated devices of the same type and all jobs currently

running on this system require a maximum of three devices to complete their

execution but they each run for long periods of time with just two devices and

request the remaining one only at the very end of the run. Assume that the job

stream is endless and that your operating system’s device allocation policy is a very

conservative one: No job will be started unless all the required drives have been

allocated to it for the entire duration of its run.

Under what circumstances an additional job would be started ?

Write a function that converts a mathematical expression containing parentheses from infix form to postfix form. The function should take pointers to both source infix array and destination postfix array as arguments. You may assume that the maximum array size is fixed. The infix expression will contain multi-digit positive integers only. The function must first check if the brackets in the expression are balanced. The function prototype is given below:

void infixToPostfix(char * src, char * dst); 

Code a C program to read five integer values from data.txt to console; calculate and display the sum and average thereof. Use the following data to create your text file: 6,45,12,67,9. (Hint: refer to video presentation on Files and streams)

Your term paper should investigate the behaviour of devices in a wireless network. To

obtain a topic that is suitable for investigation, please pick one or two parameters from

the list below, or add own suggestions:

 number, distance, position of nodes

 type and size of interface queues

 number, destination, type of traffic flows

 number and size of data units in a flow

 directionality of the flow(s)

 routing protocol in use

 transport-layer protocol in use

Then pick one or two possible results to be investigated from the list below, or add own

suggestions:

 reachability of nodes

 success rate of transmission

 bytes transmitted per unit of time

 delay and jitter in a traffic flow

 duration of transmission setup (time before first data unit is transmitted)

 handover properties

Use the variables k and total to write a while loop that computes the sum of the squares of the first 50 counting numbers, and associates that value with total. Thus your code should associate 11 + 22 + 33 +... + 4949 + 50*50 with total. Use no variables other than k and total. Instructor Notes: Note: You must use a while statement.

Josephus Problem using Circular Doubly Linked List. (Your program should print the remaining people in each iteration). also show output.

Write a program that check and classify buttons pressed on the keyboard.

After pressing any button, the program

should display one of labels: - lowercase letter

- capital letter

- digit

- ENTER

- ESC

- Left Arrow

- Right arrow

- F1 function key

- Another (unrecognised) key

HINT: to retrieve the keyboard key code, use function getch() from the library <conio.h>.