I need $20\mathrm{.}16$ number $.$ could you please do it$.$ my deu is tommorrow $834$ Chapter $20$ Lists, Stacks, Queues, and Priority Queues

$***20\mathrm{.}15($Game: the $24-$point card game$)$ Improve Programming Exercise $20\mathrm{.}13$

to enable the computer to display the expression if one exists, as shown in

Figure $20\mathrm{.}19.$ Otherwise, report that the expression does not exist. Place the

label for verification result at the bottom of the UI$.$ The expression must use all

four cards and evaluated to $24.$

Figure $20\mathrm{.}19$ The program can automatically find a solution if one exists. Source: Fotolia.

$20\mathrm{.}16($Game: the $24-$point card game$)$ Improve Programming Exercise $20\mathrm{.}15$ by

adding another expression verifier text box below the card images that accept

prefix notations instead of infix notations. You have to write your own prefix

evaluator.