After question 25, levels (I.E. 1,2,3) are no longer given. This makes problems 26 on much harder to scan for possible questions to attempt. I would suggest that the author go back and commit to their original goal and provide levels in the descriptions.
After question 25, levels (I.E. 1,2,3) are no longer given. This makes problems 26 on much harder to scan for possible questions to attempt. I would suggest that the author go back and commit to their original goal and provide levels in the descriptions.