atcoder_official's blog

AtCoder Beginner Contest 433 Announcement
By atcoder_official, history, 5 months ago, In English

We will hold AtCoder Beginner Contest 433.

We are looking forward to your participation!

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5 months ago, hide # |
 
Vote: I like it +3 Vote: I do not like it

hope this time D will be easier than E:)

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5 months ago, hide # |
 
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“THE SEG OF E”

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5 months ago, hide # |
← Rev. 2  
Vote: I like it -27 Vote: I do not like it

To all Coder's who do more on atcoder rather than CF,

What are topics roughly seen in each rating range (Brown, Green, Cyan, Blue, ....)

maspy PCTprobability hirayuu_cf sheyasutaka physics0523

and all other(these people I know but they don't know me.)

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5 months ago, hide # |
 
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Everyone will AK this contest,this contest is very easy.(That is my hope)

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5 months ago, hide # |
 
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Hope the contest is easy.

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5 months ago, hide # |
 
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Oh,This contest are easy than ABC431.

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AK!!

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5 months ago, hide # |
 
Vote: I like it -16 Vote: I do not like it

《容易》

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5 months ago, hide # |
 
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This round is easy.

I have also AK it.

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5 months ago, hide # |
 
Vote: I like it -7 Vote: I do not like it

Can we stop having heavy-implementaion problems on short-duration contests plz?

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5 months ago, hide # |
 
Vote: I like it -12 Vote: I do not like it

Very good contest!
However i noticed that problem D is quite similar to this problem, 1029D - Concatenated Multiples

And also how to solve F?

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5 months ago, hide # |
 
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But how do you think of that many people just copied G's original problem‘s solution? I don't think allow people to do so is fair.

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5 months ago, hide # |
 
Vote: I like it +2 Vote: I do not like it

Again we have a stupid E and a super standard G.

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5 months ago, hide # |
 
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In fact, I really hope AtCoder official should ban people from copying solutions. If not, I'll probably not even dare to take part in ABC!

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5 months ago, hide # |
 
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Can someone explain me how to solve D in a clear and in more dpth?

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5 months ago, hide # |
 
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Video solution of D. 183183 in detailed explanation — https://youtu.be/m2UAKskunpA

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5 months ago, hide # |
 
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Nowadays, almost every AtCoder Beginner Contest has original problems or very classic ones. Could it be that there are no new problems left to create?

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5 months ago, hide # |
 
Vote: I like it +6 Vote: I do not like it

Fun Fact: Problem D in CodeForces

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Oh！I only add 8 rating

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5 months ago, hide # |
 
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For problem G, I used DFS to traverse the DAG of the SAM, but why did it TLE and MLE??? That prevented me from AK this contest...

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5 months ago, hide # |
 
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Loved problem F

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5 months ago, hide # |
 
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Can anyone help me, what is my program missing in problem E.

https://atcoder.jp/contests/abc433/submissions/71178772

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5 months ago, hide # |
 
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Does anyone understand why you don't have to subtract $$$C_{m}^{n + 1}$$$ from $$$C_{n+m}^{n+1}$$$ while $$$n \leq m$$$? If you use the way of two sets in the editorial, you will have to subtract that :(

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