TL;DR Bad.
Long:
I soved the first question pretty late. My brain stopped working so I came up with a O(n^3) solution which clearly wouldn’t work. 15 minutes into the contest, I made an observation and quickly modified my code. AC in the first try. The second question went bad. I got a TLE verdict thrice. Ended up with a rank of 2601 which will definitely bring me back to 2 stars 
I am sorry, my bad. I misread your intuition.
Wait, do you mean \leq N? I think that is correct instead of what I said, so I’ll edit my comment. But I think the parity of the number of elements with odd occurrences must also be equal to the parity of N. I also think the second part will always be true if M is odd, so that doesn’t matter.
I think @aryan12 wanted to say <=N.
For instance, if n==3 && m==3
we have to rearrange
1 2 2
3 3 4
4 5 5
The ans is
2 1 2
3 4 3
5 4 5
1 Like
well you cant
Yeah, I meant that 
I am overloaded currently so I am not in the best mood.
Hmm, I got a WA. I will check it later. Probably there might be weak cases, if my code passes on this.
Am I the only one who know the feeling when you solve a problem just a few minutes after contest ends???
2 Likes
Rank 21, Couldn’t be happier 
Problem :- Roads and chefland
Can someone tell what’s wrong in this code.
It’s showing wrong answer on submission
Better than I expected…for the first time my rank came below 1000(i.e. 750). I solved the first in one try and the fourth in 2 tries(although it did took me 1.5 hrs 
…I came with a soln. 15 minutes before the contest ended for the 2nd soln., but thought that would cause TLE, that is why I didn’t try it, but the editorial showed the same soln. and now I am pissed off.
Great buddy!
I haven’t participated but was able to solve two questions in an hour and then went for sleep.
I think with this rank your rating will surely increase.