3 (314B)
1 Day 3 :((( 2 3 Problem 5 4 5 There wasn't much to this problem. The only noteworthy trick was that you could 6 bitwise not the first number to get the second number. 7 8 Problem 6 9 10 This problem took me way too long but it shouldn't have been hard. You have to 11 track which numbers you have searched already which is annoying.