How can i solve CHGORAM problem ? I can't understand solutions

I’m very interested in CHGORAM and I didn’t solve it in contest time.
I have read solutions of CHGORAM and I can’t understand it.
Please, help me.

Keep an eye on this thread:

https://discuss.codechef.com/t/whats-wrong-with-my-approach-for-chgoram/34448/4

My (semi-documented) solution is already in there, and I’ll hopefully have the fully-documented solution there later today :slight_smile:

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thank you, i’ll hope that

I read your solution and it is helpful but I lost you at Lemma 1. I request you to please write a more detailed and in easy to understand words. Thank you.

A more detailed description is on its way, but I’m not sure if it will be easier to understand, I’m afraid :frowning:

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Sure, would still like to give it a shot.