How to be a meme lord on Codeforces... !! It is a hard thing to learn !! Anyone can help please

lets consider that Zero can be represented as the empty set....

prove that 2 is a natural number?

how is this even possible???!!!

Hi

in this problem Students Initiation I tried to use binary search then max flow ... I got TLE, franky it makes sense actually to get a TLE.However, anyone can help me understand how can it be solved without using binary search?(or provide link to this technique [it seems popular btw])

Thanks codeforces,