Hey zscoder! Thanks so much for that advice, that really makes a lot of sense to me!

Hey, thanks for your reply! Yeah, I was trying to do that, but couldn't see any patterns... I also stopped solving it by hand at around N = 4, M = 6 -ish.

Could I ask how many examples you did by hand?

Awesome, thanks so much Ben! I guess I spent too much time trying to think of insights instead of analyzing the patterns haha

Hey guys, I really want to improve my problem solving skills. During the competition, I had no idea what to do for Div 1B/Div 2D and gave up.

I noticed a lot of accepted solutions were if-else statements. Could I kindly ask for advice on strategies to reach these solutions?