Hello Codeforces Community,
I am glad to announce that there will be DEVSKILL CODING CONTEST-23 on 6th July, Friday at 10PM(UTC+6) in Dev Skill.
This contest will consist of 5 problems and you will be given 2 hours to solve them all.
The score distribution for this contest is: 500 - 700 - 1000 - 1500 - 2000
The problems were written and tested by bhadra, shakil_AUST, math10, mahmud2690, khatribiru, tariqiitju, ssavi and me
We're inviting you all to join us in this contest. Hope you will enjoy solving problems.
Note: Problem difficulty can be compared with scores as that of Codeforces Div2 contest!!
Good luck and Happy Coding!!
I want to congratulate you guys for conducting a contest ! Well done and may you conduct many more contests in the future.
That being said, I absolutely need to say this — Problem B was absolutely terrible. I still have no idea what it means.
You guys followed a very good template for problems C, D and E. Statements were short, concise, clear and mathematical. Why not use it in B too ? I still have no idea what B means. When you are not able to communicate the question clearly, at least include an explanation of the test case :)
I enjoyed problems C, D and E :)
I couldn't complete D and E yet :). I'll work on it now.
I got TLE when I tried C with a segment tree but got AC when I used a Fenwick tree because of the smaller constant factor. I was just wondering if this was intentional ?
Very nice contest and I think I learnt a lot from it :)
P.S. — Here are my solutions to the contest and here is my editorial on C.
I got C accepted using Segment Tree. here is my code.