C++, please!

You're the administrator of a school district and you have to purchase art supplies for kindergarteners in bulk for all schools in the district based on their enrollment. You need to buy one art kit per student at $4.50, and you get a discount for all the kits, based on the number of art kits you purchase. Discount rates are as follows: Quantity Discount 100-199 10 % 200 - 399 15 % 400 - 599 20 % 600 or more 25 % Write a program that takes the number of students (integer) in the school district as input, and outputs the total cost (double) for buying art kits for each student, as shown in examples below. If user inputs negative values for the number of students, then print "Invalid input." The total cost should be formatted with a two-digit precision as shown below. You can use the setprecision function with the fixed manipulator from library to do so. Note: If you are failing a hidden test, your approach may be slightly different from the solution but still correct. A quick fix is to save your discount computation in float variable rather than a double. For example: Test Input Result //test case 1 - between 0 & 99 50 Enter the number of students in the school district: The total cost for buying art kits is $225.00 1/test case 2 - between 100 & 199 111 Enter the number of students in the school district: The total cost for buying art kits is $449.55 //test case 3 - invalid input -100 Enter the number of students in the school district: Invalid input. //test case 4 - greater than 600 1000 Enter the number of students in the school district: The total cost for buying art kits is $3375.00