Thread: A problem related to array

How to print out the 2D array(an airplane seat layout) as follow (at the beginning, all numbers are 0)and if the user input A1（row1，column1）, the program will automatically choose the seat, if the user doesn't input anything, the program will randomly choose one seat available. Then, the program will refresh the table when the next user choose again.
Note: "0" represents seat available while "1" not available


Thank you!

You could associate the A row with 0 row, in the array. Char's can be used like small int's - subtract 'A' from the letter of the row, and that's your row number in the array.

Your array is missing row N, just FYI.

Originally Posted by Adak

You could associate the A row with 0 row, in the array. Char's can be used like small int's - subtract 'A' from the letter of the row, and that's your row number in the array.

Your array is missing row N, just FYI.

Thanks for your correction.
How can i randomly choose any seat in the array？

You slipped right by me!

The rows letters are now associated with the numbers 0 through 15 with 13 being skipped (A-P, but no N).

So you can now use rand() % 16, for the row number (which you will then change into the proper letter), and rand() % 6 + 1, which will give you the random column number. You'll need to include stdlib.h for rand(), and you should know that random numbers will randomly repeat - if so, you need to work that out, what to do.