DottedCalculator's blog

Things I know as specialist
By DottedCalculator, 18 months ago, In English

Things I have heard of and know

  • binary search
  • coding
  • addition and multiplication
  • or, and, xor
  • sorting
  • fast io
  • geometry (euclidean)
  • geometry (complex numbers)
  • angle chasing
  • spiral similarity
  • homography
  • sharkydevil point
  • pascal
  • brianchon
  • cayley-bacharach
  • hyperbolas
  • hall
  • combinatorial nullstellenatz
  • graph theory
  • counting
  • turan
  • zsigmondy
  • kobayashi
  • factoring
  • divisibility
  • prime numbers
  • quadratic reciprocity
  • lifting the exponent
  • Riemann zeta function
  • analytic NT
  • gaussian integers
  • Fermat's Christmas Theorem
  • cauchy
  • jensen
  • holder
  • minkowski
  • derivatives
  • polynomials
  • generating functions

If there are at least three things in this list you do not know, you are doing it wrong.

  • Vote: I like it
  • +178
  • Vote: I do not like it

Comments Comments (30)
| Write comment?
»
18 months ago, # |
← Rev. 2   Vote: I like it +77 Vote: I do not like it

smh you should know subtraction and division

→ Reply
»
18 months ago, # |
  Vote: I like it +58 Vote: I do not like it

This was really helpful. I didn’t know what I was doing wrong until I saw this post and realized I didn’t even know half of these essential topics and concepts. Now I know how to get rank 2 on div 3s like Dotted orzosity.

→ Reply
»
18 months ago, # |
  Vote: I like it +10 Vote: I do not like it

Dude forgot to add exorcism in the list.

→ Reply
»
18 months ago, # |
  Vote: I like it +6 Vote: I do not like it

I only know how to implement :3

→ Reply
»
18 months ago, # |
  Vote: I like it +98 Vote: I do not like it

Thank you, with this newfound knowledge, I can finally get to Specialist

→ Reply
»
18 months ago, # |
  Vote: I like it +15 Vote: I do not like it

Bro doesn't even know homotopy type theory lmao

→ Reply
»
18 months ago, # |
← Rev. 2   Vote: I like it +24 Vote: I do not like it

"Things I know as an IMO contestant"

inb4 people call these theorems "algorithms"

→ Reply
»
18 months ago, # |
  Vote: I like it 0 Vote: I do not like it

You don't need so many algorithms, you just need to master the basic ones, such as enumeration, greedy, dynamic programming, data structures, graph theory, computational geometry

→ Reply
  • »
    »
    18 months ago, # ^ |
      Vote: I like it +2 Vote: I do not like it

    Note that he has got Rank 2 in div.3, so his real rating is far above specialist lmao

    → Reply
    • »
      »
      »
      18 months ago, # ^ |
        Vote: I like it +20 Vote: I do not like it

      Note that he is competing on the USA IMO team this year lmao.

      → Reply
»
18 months ago, # |
  Vote: I like it +21 Vote: I do not like it

No way a specialist gets rank 2 div3 in one contest and then ranks 15K in div2 the next contest. You are trolling. You're probably way above specialist.

→ Reply
»
18 months ago, # |
  Vote: I like it +92 Vote: I do not like it

If you don't use the Droz-Farny quintic in every problem, then you're obviously a grey posing as a cyan.

→ Reply
»
18 months ago, # |
← Rev. 3   Vote: I like it -7 Vote: I do not like it

A master trying to act as cyan and trolling noobs ...lol

Great to see you have secured rank 2 in div 3

→ Reply
»
18 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Another demotivating blog..:)

→ Reply
»
18 months ago, # |
  Vote: I like it +109 Vote: I do not like it

Things from this list I don’t know (or don’t remember (or don’t understand what is meant)):

  • geometry (complex numbers)
  • angle chasing
  • spiral similarity
  • homography
  • sharkydevil point
  • pascal
  • brianchon
  • cayley-bacharach
  • hall
  • combinatorial nullstellenatz
  • zsigmondy
  • kobayashi
  • lifting the exponent
  • Riemann zeta function
  • analytic NT
  • gaussian integers
  • Fermat's Christmas Theorem
  • holder

What am I doing wrong :(

→ Reply
»
18 months ago, # |
  Vote: I like it +49 Vote: I do not like it

Things I know as Expert:

  • Absolutely nothing
→ Reply
»
18 months ago, # |
  Vote: I like it +14 Vote: I do not like it

certain you don't need most of these :(

→ Reply
»
18 months ago, # |
  Vote: I like it 0 Vote: I do not like it

ok dotted

→ Reply
»
18 months ago, # |
  Vote: I like it +32 Vote: I do not like it

Oh you know the Riemann zeta function? Name all its nontrivial zeros with $$$\Re\neq 1/2$$$.

→ Reply
  • »
    »
    18 months ago, # ^ |
      Vote: I like it +16 Vote: I do not like it

    It is trivial and left as an exercise for the readers.

    → Reply