Assignment 21: Multiplication table

due Monday 4/8

Write a program that computes and prints out a 12-by-12 multiplication chart. Your program must use a nested loop (a loop inside another loop).

Some specific requirements about what the chart should look like:

The chart should include a top row and a left column showing the two numbers being multiplied.
Make sure your columns are aligned correctly. One way to do this is to set the output width using setw (see textbook page 64).

Extensions

For 5 pts.: Write a program that will print an n-by-n multiplication chart, for a user-input value of n. Provide sample runs with input values of 12 and 18.

For 10 pts.: Also make your program calculate the column width based on n, so that the program always uses the smallest possible column width (i.e., if the column width were 1 less, some numbers in the chart would run into each other). Provide sample runs with input values of 3, 4, 9, 10, 12, 18, and 20.