Question

Lottery

The lottery game matches three different integer numbers between
1 and 10. Winning depends on how many matching numbers are provided
by a player. The player provides three *different* integers
between 1 and 10.

If there is a match of all 3 numbers, the winning $ 1000.

If there is a match with 2 numbers, the winning $ 10.

If there is a match with 1 number, the winning $ 1.

With no match, the winning is $0.

Write a function **Lottery3** that checks three
numbers provided by a player and determine the winning amount. If
the user mistakenly enters same number twice/thrice and if that
number matches one of the winning numbers, the code should count
that number only once and display correct result. The player
doesn’t have to guess the order of numbers.

The input to the function **Lottery3** can have
*up to* two input arguments. The first input argument is a
row array **numbers** with 3 numbers. If the second
argument input **testCode** is present, *and*
is a row vector of 3 values, the function **Lottery3**
uses the code in **testCode** as the three winning
numbers (the test must be three different integer numbers between 1
and 10), else three different numbers will be automatically
generated by testCode.

The ouput should return the variable **winnings**
and the three winning numbers in the row array
**winNumbers**.

** Hint:** Make use of the internal
functions

** Restriction:** The function

Example #1:

winning = Lottery3( [1,2,1],[1,2,3])

produces

winning =

10

Example #2:

[winning,winNumbers] = Lottery3( [1,2,3])

produces

winning =

3

winNumbers =

8 5 3

function [winning,winNumbers] = Lottery3(numbers,testCode)

winNumbers=randperm(10,3); % generates three different integers between 1 and 10

% Insert code here to see is winNumbers should be overwritten with testCode %

% Insert code here to determine how many winning numbers are present %

% Insert code to calculate the winnings using switch %

end

Answer #1

function [winning, winNumbers] = Lottery3(numbers,
testCode)

winNumbers = randperm(10, 3);

if nargin == 2

winNumbers = testCode;

end

count = 0;

if any(winNumbers(:) == numbers(1))

count = count +1;

end

if numbers(1) ~= numbers(2) && any(winNumbers(:) ==
numbers(2))

count = count +1;

end

if (numbers(1) ~= numbers(3) && numbers(2) ~= numbers(3))
&& any(winNumbers(:) == numbers(3))

count = count +1;

end

switch count

case 0

winning = 0;

case 1

winning = 1;

case 2

winning = 10;

case 3

winning = 1000;

end

end

code to call your function

testCode=[1,2,3]; numbers=[1,2,5];

[winning, winNumbers] = Lottery3(numbers, testCode)

sample run

winning = 10 winNumbers = 1 2 3

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