PeterNaut's blog

What is your favorite easy problem?
By PeterNaut, 9 years ago, In English

Something like Div 2. A or B. Sometimes they can be fun to solve :P

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9 years ago, # |
  Vote: I like it +33 Vote: I do not like it

From recent contests I've liked this. =)

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9 years ago, # |
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I think this is a good one :D

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9 years ago, # |
← Rev. 2   Vote: I like it +3 Vote: I do not like it

My favourite: you need to make the correct romanian equation, and you can transport only one stick, e.g.: III+II=III → III+I=IIII.

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    9 years ago, # ^ |
      Vote: I like it +9 Vote: I do not like it

    Is "IIII" a valid roman number though? Shouldn't it be IV? :D

    And also Roman equation, not Romanian equation :)

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      9 years ago, # ^ |
        Vote: I like it +3 Vote: I do not like it

      You better take me a link to this problem, which I can't find :P . There will be more explained and some restrictions declared; And about Roman numbers — I don't know, but one day I have read about Roman numerals in here in project Euler, and IIII seems to be valid, although not the shortest.

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9 years ago, # |
  Vote: I like it +7 Vote: I do not like it

fun to solve !

man, people like me struggle to solve them (:`|)

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9 years ago, # |
  Vote: I like it 0 Vote: I do not like it

CEOI 2007 — Ministry

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9 years ago, # |
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ioi 2013-WOMBATS is good one :)

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    9 years ago, # ^ |
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    Even though you're probably joking with it, it's actually a pretty sweet problem! If you check out the solution it ain't that bad and combines some awesome techniques :P

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9 years ago, # |
← Rev. 2   Vote: I like it -15 Vote: I do not like it

That's the best problem I've ever seen :p

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9 years ago, # |
  Vote: I like it +5 Vote: I do not like it

My favorite is Hexadecimal's theorem. I think it's the easiest problem in CF. And problem setter wrote a hint in the problem statement and I quote:

Output three required numbers: a, b and c. If there is no answer for the test you have to print "I'm too stupid to solve this problem" without the quotes.

(Which means there is always an answer to each test!)

Interesting fact about this problem is you can solve it with 13 characters (including spaces) in some languages like Ruby. And still there are a lot of users who solve it with complex solution while it has a straight-forward solution :D

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