Hi, I collected the solutions for the problems of April Fools Day Contest 2023. Before the official editorial being posted, we can discuss about the problems here.
P/s: The editorial was published.
1812A - Are You a Robot?
I tried to submit NO, but what we all need is to submit security
1812B - Was it Rated?
It's about the first 25 contest ever, the 15-th, 20-th and 21-th one was unrated.
1812C - Digits
The first test case has $$$3$$$ numbers, the second has $$$1$$$, and the third has $$$4$$$. Yes, they are following the order of number pi.
314159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745
Take this string into your code and you will be fine. Multiply all number in a test and get the answer.
1812D - Trivial Conjecture
Just try number 0.
1812E - Not a Geometry Problem
Just try number 0 again.
1812F - Factorization
The larger number is a prime, the smaller number's prime divisor can be found using Wolfram Alpha, which is $$$4201403994187$$$.
1812G - Colour Vision
The color of the image is #01722B. Just copy the editorial for problem 1722B and submit.
The statement said the number are generated randomly, and $$$624$$$ is how we crack mt19937.
1812I - Mountain Climber
abcdefghijklmnopqrstuvwxyz
The letters bdfhklt are taller, and gjpqy have a "foot". Replace them with ( and ). Check if the sentence is balanced or not.
1812J - Unmysterious Language
Just says Please read my submission or Please give my AC, or something like that.
