A student’s marks in an exam are converted to a grade according to the table below:
computer science
Description
Q. 1 A student’s marks in an exam are
converted to a grade according to the table below:
|
Mark |
100 - 85 |
84-70 |
69-60 |
59-50 |
49-40 |
39-0 |
|
Grade |
A |
B |
C |
D |
E |
F |
A
file called “Marks.dat” contains a list of K-numbers and marks for a group of
20 students.
Write a program that will
a) read
the contents of the file “Marks.dat” into two 1-dimensional arrays, one for the
K-numbers and one for the marks.
b) populate
a third 1-dimensional array with the matching grades based on the table above
c) write
the K-numbers and grades out to a file called “Grades.dat”.
Q. 2 The cost of
hiring a yacht is calculated by multiplying the number of days the yacht is on
hire by a seasonal daily rate. The
seasonal rates in € are given by the following table and the rate applied is
based on the hire month. Cruisers are not available for hire from November to
February inclusive.
A
percentage discount is applied based on the number of days hire as per the
|
HIGH SEASON July – Aug |
MID SEASON May – June & Sep - Oct |
LOW SEASON March– April |
|
€400 |
€250 |
€100 |
A percentage discount is applied
based on the number of days hire as per the following able:
|
0 –
15days |
16 to
30 days |
31 to
60 days |
61
days or more |
|
0% |
5% |
10% |
15% |
Write a program that
a)
allows the user to enter the hire
month as an integer in the range 1 to 12 and the number of
days
the cruiser will be on hire
b)
will ascertain the applicable
hire rate based on the above table
c)
will ascertain the discount rate
d)
will calculate and display the
total cost of the cruiser hire
Q.
3 A car insurance
company calculates the cost of a comprehensive insurance policy based on the
value of the car, the age of the driver and the number of penalty points as per
the equation and the tables shown below.
cost
= ( 250 + (value of car/1000) * Valuefactor )
* Agefactor * Pointsfactor
The Valuefactor is currently €10
|
Age |
Agefactor |
|
less 18
years |
will not insure |
|
18 to 20 years |
2.0 |
|
21 to 25 |
1.5 |
|
greater than 25 years |
1.0 |
|
No. of Points |
Pointsfactor |
|
less than 5 |
1.0 |
|
5 |
1.1 |
|
6 |
1.2 |
|
7 |
1.4 |
|
8 |
1.7 |
|
9 or greater |
will not insure |
Write a program that will
a) allow
the user to enter the value of a car, the drivers age and the number of penalty
points
b) then
ascertain whether or not the driver is insurable
c) if
insurable will deduce the AgeFactor
d) if
insurable will deduce the Pointsfactor
e) if
insurable will calculate and display the cost of the policy
f)
if not insurable will report this
decision and the reason why the decision was taken
Q. 4
A terrain is divided into a 100
by 100 grid and the height above sea level (to the nearest metre) at the
centre of
each cell is measured. This set of measurements
is stored in a file called “Griddata.dat”.
Write a program that will
a) read the contents of the file
into a 2-D array
b)
find
the smallest value in the array
c)
reduce
each value in the array by the smallest value
d)
display
the contents of the array
Q. 5 The
data relating to a black and white bitmapped image may be stored as a two
dimensional array of integer values, where each value represents the colour of
the corresponding pixel. Two such sets of data for two 50 pixel by 20 pixel
images are stored in two files called “Picture1.dat” and “Picture2.dat”.
Two
images are regarded as identical if there is at least a 95% match between
corresponding pixels.
Write a program that will
a)
read the contents of the two
files into two 2-D arrays.
b) then compare the contents of the arrays and
count the number of elements that differ
c) report whether or not the two images are
identical.
Q.
6 A car dealership has 5 salespersons (numbered 1 to 5) and they
sell 4 different car models (numbered 1 to 4).
A file, called
“Sales.dat”, is maintained that contains five rows one for each salesperson.
Each row contains 4 integers representing the number of each model of car that
the corresponding salesperson has sold.
Write a program that will
a) read the contents of the file into a 2-D
array
b) repeatedly, when a car has been sold, allow
a user to enter a salesperson number in the range 1 to 5 and a model number 1
to 4. Values of -1, -1 should be entered when the program is to terminate.
c) based on the salesperson number and the car
model number, the corresponding number of cars sold in the array should be
incremented.
d) before the program terminates, the contents
of the array should be re-written to the file.
