$1.(5$ pts$)$ A user interface with options similar to the following:

a$.$ Learn about how to use the program

b$.$ Enter your initials $(3$ individual characters...$)$

c$.$ Difficulty selection

d$.$ Start a new sequence of problems

e$.$ Save and Quit

$2.(25$ pts $-5$ pt$/$level$)$ Generate mathematical problems based on the difficulty

level selected. You must implement the following five levels of difficulty:

a$.$ Level $1-$ Easy: Includes addition and subtraction problems, with positive

single digit operands and up to three terms only $($i$.$e$.$ d$1+$ d$2-$ d$3=)$

b$.$ Level $2-$ Fair: Includes multiplication problems, with positive single digit

operands and up to two terms only $($i$.$e$.$ d$1$ x d$2=)$

c$.$ Level $3-$ Intermediate: Includes division problems, with positive single digit

operands and up to two terms only $($i$.$e$.$ d$1/$ d$2=)$;

Note: results should be shown in the form Num R Remainder, i$.$e$.$

if the problem is $5/3,$ then the answer should be provided as $1$ R $2.$

d$.$ Level $4-$ Hard: Includes a mix of addition, subtraction, multiplication, and

division problems, with positive and negative single digit operands

and up to three terms only $($i$.$e$.$ d$1+-$d$2/$ d$3=)$; Hint: you may

have to first find a common denominator.

e$.$ Level $5-$ Impossible: Includes a mix of addition, subtraction,

multiplication, and division problems, with positive and negative

two and three digit operands and up to four terms only $($i$.$e$.$ dd$1+$

$-$ddd$2$ x ddd$3/$ dd$4=)$;

Hint: you may have to first find a common denominator.

$3.(5$ pts$)$ Allow the user to enter an answer corresponding to a generated math

problem

$4.(10$ pts$)$ Evaluate the answer provided by the user. The user gets a certain

number of points for correct answers

and loses points for incorrect answers. The number of points should

directly relate to the difficulty of the problem.

$5.(10$ pts$)$ Each level must generate a sequence of ten problems

$6.(10$ pts$)$ Within each level, problems should become a little more difficult as the

user enters correct answers

$7.(10$ pts$)$ Once the user quits the program, output the user's initials and total

score to a file

Your program must implement error checking where appropriate. It also must use

strings, pointers, and output parameters where appropriate.

BONUS Opportunities:

$1.$ Implement a "load previous progress" feature $($up to $10$ pts$)$

$2.$ Implement a "help" feature, which illustrates step$-$by$-$step how to solve various

addition, subtraction, multiplication, and division problems $($up to $15$ pts$)$

$3.$ Others? $($up to $15$ pts$)1.(5$ pts$)$ A user interface with options similar to the following: a$.$ Learn about how to use the program

b$.$ Enter your initials $(3$ individual characters...$)$

c$.$ Difficulty selection

d$.$ Start a new sequence of problems

e$.$ Save and Quit

$2.(25$ pts $-\backslash (5\backslash$mathrm$\{$pt$/$level$\}\backslash ))$ Generate mathematical problems based on the difficulty level selected. You must implement the following five levels of difficulty:

a$.$ Level $1-$ Easy: Includes addition and subtraction problems, with positive single digit operands and up to three terms only $($i$.$e$.$ d$1+$ d$2-$ d$3=)$

b$.$ Level $2-$ Fair: Includes multiplication problems, with positive single digit operands and up to two terms only $($i$.$e$.\backslash (\backslash$mathrm$\{$d$\}1\backslash$times $\backslash$mathrm$\{$d$\}2=\backslash ))$

c$.$ Level $3-$ Intermediate: Includes division problems, with positive single digit operands and up to two terms only $($i$.$e$.$ d$1/$ d$2=)$;

Note: results should be shown in the form Num R Remainder, i$.$e$.$ if the problem is $\backslash (5/3\backslash ),$ then the answer should be provided as $1$ R $2.$

d$.$ Level $4-$ Hard: Includes a mix of addition, subtraction, multiplication, and division problems, with positive and negative single digit operands and up to three terms only $($i$.$e$.$ d$1+-$d$2/$ d$3=)$; Hint: you may have to first find a common denominator.

e$.$ Level $5-$ Impossible: Includes a mix of addition, subtraction, multiplication, and division problems, with positive and negative two and three digit operands and up to four terms only $($i$.$e$.$ dd$1+-$ddd$2$ x ddd$3/$ dd$4=)$; Hint: you may have to first find a common denominator.

$3.(5$ pts$)$ Allow the user to enter an answer corresponding to a generated math problem

$4.(10$ pts$)$ Evaluate the answer provided by the user. The user gets a certain number of points for correct answers

and loses points for incorrect answers. The number of points should directly relate to the difficulty of the problem.

$5.(10$ pts$)$ Each level must generate a sequence of ten problems

$6.(10$ pts$)$ Within each level, problems should become a little more difficult as the user enters correct answers

$7.(10$ pts$)$ Once the user quits the program, output the user's initials and total score to a file

Your program must implement error checking where appropriate. It also must use strings, pointers, and output parameters where appropriate.

BONUS Opportunities:

$1.$ Implement a "load previous progress" feature $($up to $10$ pts$)$

$2.$ Implement a "help" feature, which illustrates step$-$by$-$step how to solve various addition, subtraction, multiplication, and division problems $($up to $15$ pts$)$

$3.$ Others? $($up to $15$ pts$)$