Computer Science Canada

grade 2 computer test in China

Author:  gilles557 [ Mon Feb 23, 2009 12:05 pm ]
Post subject:  grade 2 computer test in China

http://funstufftosee.com/frogleaptest.html

Author:  tenniscrazy [ Mon Feb 23, 2009 1:40 pm ]
Post subject:  RE:grade 2 computer test in China

lol im gonna find a grade 2 kid here see if they can do it

Author:  saltpro15 [ Mon Feb 23, 2009 2:05 pm ]
Post subject:  RE:grade 2 computer test in China

got it second try lulz Very Happy

Author:  Insectoid [ Mon Feb 23, 2009 4:22 pm ]
Post subject:  RE:grade 2 computer test in China

took a few tries, but got it to work after I started thinking and stopped clicking.

Author:  DanielG [ Mon Feb 23, 2009 7:00 pm ]
Post subject:  RE:grade 2 computer test in China

I messed up a few times as well, but this isn't actually a hard puzzle, all you have to remember is to check if a move is correct at any point (since you can find out if it was wrong right after)

Author:  SJ [ Mon Feb 23, 2009 7:19 pm ]
Post subject:  RE:grade 2 computer test in China

chinese children knows that frogs prefer to look at the opposite sex if they ahve a choice, so this puzzle cant be very challenging for them

Author:  A.J [ Mon Feb 23, 2009 8:54 pm ]
Post subject:  Re: grade 2 computer test in China

Laughing This is the shuttle puzzle, but using frogs instead...it was a question on the usaco training pages...it asked you to output the moves to solve a N shuttle puzzle (where there are N frogs on either side and an empty space between them)...

There is an algorithm for this

Author:  ecookman [ Tue Feb 24, 2009 8:12 am ]
Post subject:  RE:grade 2 computer test in China

lol i fail....

Author:  andrew. [ Tue Feb 24, 2009 9:02 am ]
Post subject:  Re: RE:grade 2 computer test in China

ecookman @ Tue Feb 24, 2009 8:12 am wrote:
lol i fail....
Me too Crying or Very sad

Author:  Tallguy [ Tue Feb 24, 2009 2:21 pm ]
Post subject:  RE:grade 2 computer test in China

Sad i would so fail grade 2, lol

but i finally got it YAY!!

Author:  ecookman [ Tue Feb 24, 2009 3:20 pm ]
Post subject:  RE:grade 2 computer test in China

if only they could jump backwards

and like tall guy...finally

Author:  bugzpodder [ Tue Feb 24, 2009 3:51 pm ]
Post subject:  RE:grade 2 computer test in China

service unavailable

FAIL

Author:  saltpro15 [ Tue Feb 24, 2009 4:05 pm ]
Post subject:  RE:grade 2 computer test in China

@A.J., I would like to see an algorithm for this, could it be done along the lines of dynamic programming with a BFS? it seems quite difficult to me

Author:  DanielG [ Tue Feb 24, 2009 4:13 pm ]
Post subject:  RE:grade 2 computer test in China

not really, look at the puzzle and you will notice that at any point only 1 move is accurate and the inaccurate can be noticed right away (after making the mistake), so even dfs should probably work.

Author:  A.J [ Tue Feb 24, 2009 4:29 pm ]
Post subject:  Re: grade 2 computer test in China

saltpro15 wrote:

@A.J., I would like to see an algorithm for this, could it be done along the lines of dynamic programming with a BFS? it seems quite difficult to me


the algorithm doesn't have to do with DP, BFS, DFS, etc...

look at 'empty space'...what do you notice to the movement of it?

Author:  phleet [ Fri Feb 27, 2009 12:02 am ]
Post subject:  RE:grade 2 computer test in China

I question why this "Grade 2 Test from China" is in Portuguese..

Author:  matt271 [ Sun Apr 05, 2009 5:15 pm ]
Post subject:  RE:grade 2 computer test in China

wow that took me at least 2 min

Author:  matt271 [ Sun Apr 05, 2009 5:15 pm ]
Post subject:  Re: RE:grade 2 computer test in China

phleet @ Fri Feb 27, 2009 1:02 am wrote:
I question why this "Grade 2 Test from China" is in Portuguese..


maybe they are learnning logic, Portuguese, and computer skills all at the same time :]

Author:  A.J [ Sun Apr 05, 2009 6:41 pm ]
Post subject:  Re: grade 2 computer test in China

matt271 wrote:

phleet @ Fri Feb 27, 2009 1:02 am wrote:
I question why this "Grade 2 Test from China" is in Portuguese..


maybe they are learnning logic, Portuguese, and computer skills all at the same time :]


Or maybe this is just a Grade 2 test from Brazil (and they accidentally added the word 'China' in there for some reason).

Possibilities...

Author:  DanielG [ Sun Apr 05, 2009 6:42 pm ]
Post subject:  RE:grade 2 computer test in China

or maybe it's not a test at all; either way, it is still a nice puzzle.

Author:  saltpro15 [ Sun Apr 05, 2009 7:08 pm ]
Post subject:  RE:grade 2 computer test in China

well considering how it's just basically clickity-click and requires no logic, I'd say this is a pretty lousy test. Maybe getting them to write a basic calculator or something would be a good test.

Author:  DanielG [ Sun Apr 05, 2009 7:19 pm ]
Post subject:  RE:grade 2 computer test in China

it requires a bit of logic, if you just click randomly than you fail (unless you are really lucky)

Author:  saltpro15 [ Sun Apr 05, 2009 7:37 pm ]
Post subject:  Re: grade 2 computer test in China

Spoiler:
green brown brown green green green brown brown brown brown green green green brown brown green


here's the answer, for those who are truly stumped


: