Remove white space at the end of the output in C

Question

The following code is for printing the elements of a matrix in spiral order. The program works fine. The problem, however, is that the online compiler against which I\'m checkin

Answer 1

You can set a boolean variable isFirst to true before your printing out any stuff, and test it before each printf statement. If isFirst, do not print a space but set isFirst to false; else print a single space. After that, continue with printing your number without a space.

Alternative: Instead of printing your results immediately, create a results array. Store your results in there, and when done, print out the results in a tight loop. You can print the first number without a leading space, then loop over the remainder and print them with a leading space.