Answer to yesterday's problem was 5389. Two things about it: 1) That problem is lowkey a REALLY good example of how more practice genuinely DOES help you improve on hard problems. I noticed a lot of you guys struggling with it, but when I first saw that problem myself I recognized the solution in like 10 seconds because I have seen at least 2-3 problems VERY similar to it. Not a flex -- just showing that when you do more problems, you really do start noticing patterns that make other problems easier. Most students just don't do enough to reach that point. 2) The 5389 number is NOT too big, because that's just what m equals. The ladder itself is only 24 long. Anyway, here's another one. Shoutout to @Kushal Anugu for this one!

Hard question shown by @Jason Parton earlier today. Same amount of people left in the challenge. Answer to the 2/17 question was D. A) suggesting B) suggested C) suggests D) has suggested