CS 112b
Fall 2000
Ileana Streinu

Outline

Programs

1. Write a small C++ program prog1.cpp which asks the user to enter two integers, and then prints the sum, the average, the product, the smallest and the largest of these numbers. The screen dialogue should appear as follows:
   
   Input two integers: 12 2
   Sum is 24
   Average is 7
   Product is 24
   Smallest is 2
   Largest is 12
   
   
   
2. Write a program prog2.cpp which does exactly what prog1.cpp did, but using the following functions:
   • Sum, summing the two integers.
   • Average, computing the average of the two numbers.
   • Product, computing the product.
   • Min, computing the minimum element.
   • Max, for the maximum.
   • Input, for entering the data.
   • Output, for printing the result.
3. prog3.cpp will compute the same functions as above, but for a vector (array) of n elements. The user enters first the number of elements n, then the vector, then the program computes (by calling the appropriate functions) and prints. You should use function calls, where Sum, Average, Product, Max and Min work now on an array (vector) of n integers.
4. prog4.cpp is just a bit more complex. It still computes sum, average etc. but on a n x n matrix (two-dimensional array). As before, it should use functions Sum, etc., which add all the elements of the array (resp., compute average, product, min and max).
5. prog5.cpp works like prog4 with an two-dimensional array, but it computes vectors of the row sums, averages, products, minima and maxima.
6. prog6.cpp combines all previous programs into one. It asks the user: What do you want to do? and offers her the options: 1 for two numbers, 2 for a vector, 3 for a matrix, 4 for row-wise operations on a matrix. Depending on the number chosen by the user, it invokes the corresponding functions designed at the previous stages, and prints the results.