Try this, it helped me pass #32. Correct answer is 11.

2
20 13

You should write something like "click here to view it" :)

Check this. I think using map (not unordered) may help.

I've tried the same, but it's boring when you're out, for example, but you still need to keep your streak. In most cases, I only solved one problem, sometimes the simplest of the existing ones. There is too little benefit from solving problems that are too simple. I believe that in general we should solve problems more difficult than our rating. I understood that every day it would be getting sadder to interrupt the streak on purpose. In the end, I just breaked the streak due to codeforces technical issues. This is pretty disappointing, but now I feel free. Solving problems every day is good, but not if you're just trying to keep the streak going. Now I just spend more time studying)) I'll be back soon. Maybe one tough problem for a few days, or a lot of problems on the first day and rest the next, but I don't want to do such a series of solved problems anymore. Good luck to you!