Write a c++program that asks the user to enter a part number to order. The rules for creating a part number are as follows: a) The first character must be an ‘A’, ‘B’, or ‘C’. b) The second and third characters must be numeric; their value when taken as a pair must be between 10 and 49 (inclusive). c) The fourth character must be a lowercase letter. d) The fifth and sixth characters must be numeric; their values when taken as a pair must be between 22 and 66 (inclusive). Display a message indicating whether the entered part number is valid or not.

Option #1: Repetition Control Structure - Five Floating Point Numbers

C++ Program

C#(Sharp): I made my code and design below. Anybody can help me some correction and add some design button and code. "Need to make C# step by step design and code "Calculator where make a calculator program that can do add, subtract, multiply, divide and square root. It should have a memory save/restore function for one number. There should be a way to set the number of fraction digits displayed".     Code: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace AktCalc { public partial class Form1 : Form { string last = ""; bool minus = false; bool plus = false; bool divide = false; bool multiply = false; string memory = ""; public Form1() { InitializeComponent(); } private void button2_Click(object sender, EventArgs e) { if (textBox1.Text.Contains(",")) { return; } else { textBox1.Text += ","; } } private void…