### kingofnumbers's blog

By kingofnumbers, 8 years ago,

if IOI2013 problems were codeforces problems what do think the most appropriate rank for those problems?

in my opinion:

Dreaming: Div1 B/Div2 D

Art Class: Div1 C/Div2 E

Wombats: Div1 D

Cave: Div1 B/Div2 D

Robots: Div1 C/Div2 E

Game: Div1 C/Div2 E

• -3

 » 8 years ago, # |   -8 Art Class would not be a CodeForces problem.
•  » » 8 years ago, # ^ |   0 yes, but one can assign a rank for it just for showing the difficulty of this problem
 » 8 years ago, # |   +1 I don't know. I feel like they're incomparable. IOI and CF problems have different styles I think...
•  » » 8 years ago, # ^ |   +5 Well, I think this is true only with "art class" and "cave" but the others are normal problems
 » 8 years ago, # |   +68 Oh.. Game and 4 more problems without feedback are as easy as two-hour div two contest without tokens for you .. Where can I join your fan club?
•  » » 8 years ago, # ^ |   0 please share your opinion if disagree with me
 » 8 years ago, # | ← Rev. 2 →   +84 well, I disagree with your point.It seems you're really genius and can solve those problems in seconds, but as for a normal guy like me, those problems are not that simple.My opinion:Dreaming: Div1 B/Div2 DArt Class: Div1 DWombats: Div1 ECave: Div1 C/Div2 ERobots: Div1 C/Div2 EGame: Div1 E
•  » » 8 years ago, # ^ |   0 thanks for your opinion
 » 8 years ago, # |   -19 Many people are surprised of my opinion , actually I think IOI2013 problems are the easiest year than other previous years.also I want to say that a lot of Div1 D and Div1 E problems in codeforces are very harder than IOI problems for example what problem do you think is easier IOI2013 dreaming or 288D - Пингвин Поло и дерево ?note that both problems are related to trees
•  » » 8 years ago, # ^ |   +10 Polo the Penguin and Trees is Div1 D problem. Nobody said that dreaming from ioi2013 is as hard as div1 D problem.After 10 (5+5) hours of solving with full feedback, nobody did full score on IOI 2013, even IGMs from CF. I don't think that IOI 2013 problems are easier than Div1 round. I think, if you give 5 hours and full feedback for almost any div1 round, at least 1 IOI 2013 participant will make full score.
•  » » » 8 years ago, # ^ |   0 Well, 5 hours with out full feedback for first dat, to be honest :)
•  » » » » 8 years ago, # ^ |   0 How do you mean full feedback? Did you was able to see your final result during the contest?
•  » » » » » 8 years ago, # ^ |   0 Yes, can submit your solution and the grading system tells you how many points you have for the submitted solution. But on the first competition date, the grading systems were slow. I think I had no feedback at all in the last hour... :(
•  » » » 8 years ago, # ^ |   +2 You should consider that 2 hours only is making div1 Round is harder
•  » » » » 8 years ago, # ^ |   +9 But there is nothing about time in your comment. You just said that div1 problems are harder than IOI 2013. IMHO, in 2 hour contest it is almost impossible to solve Game, Wombats, Cave and Art Class. As you wrote in post:Game — div1 CWombats — div1 DCave — div1 BArt Class — div1 C.They are a harder than div1 problems.
•  » » » » » 8 years ago, # ^ | ← Rev. 2 →   +2 Well, I was just replying to this sentenceif you give 5 hours and full feedback for almost any div1 roundanyway, if you want to compare IOI contest with codeforces div1 contest , you should compare them as IOI contest has 5 hours and codeforces contest has 2 hourbut if you want to compare between problems ,then you shouldn't consider the time nor the feedbackEdit: also when I'm giving a codeforces rank to IOI problem I'm just showing the difficulty of these problems(in my opinion) , not making them in a codeforces contest
 » 8 years ago, # | ← Rev. 2 →   +3 Here's what I think:Dreaming: 3/5 starsArt class: 4/5 starsWombats: 5/5 starsCave: 2/5 starsRobots: 3/5 starsGame: 4.5/5 stars (3 stars without the final subtask introduced in the night before the competition)And I don't like comparing apples to bananas. Specifically when one of the task wouldn't ever appear in CF Round. Hence, stars.
•  » » 8 years ago, # ^ | ← Rev. 2 →   0 thank you for your opinion.BTW, I prefer bananas more than apples :)