Problem 424
Forum rules
As your posts will be visible to the general public you
are requested to be thoughtful in not posting anything
that might explicitly give away how to solve a particular problem.
This forum is NOT meant to discuss solution methods for a problem.
See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.
As your posts will be visible to the general public you
are requested to be thoughtful in not posting anything
that might explicitly give away how to solve a particular problem.
This forum is NOT meant to discuss solution methods for a problem.
In particular don't post any code fragments or results.
Don't start begging others to give partial answers to problems
Don't ask for hints how to solve a problem
Don't start a new topic for a problem if there already exists one
Don't start begging others to give partial answers to problems
Don't ask for hints how to solve a problem
Don't start a new topic for a problem if there already exists one
See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.

 Posts: 100
 Joined: Sat Aug 29, 2009 7:49 pm
Problem 424
Two rules questions:
1. Can an answer (across or down) contain duplicate digits?
2. Can an answer (across or down) contain a zero?
I suspect the answers are both no, but please confirm.
1. Can an answer (across or down) contain duplicate digits?
2. Can an answer (across or down) contain a zero?
I suspect the answers are both no, but please confirm.
Re: Problem 424
I haven't solved this problem (it's out of my league at the moment), but I have solved lots of Kakuro puzzles.
I can confirm that the answer on both questions is indeed no.
I can confirm that the answer on both questions is indeed no.
Re: Problem 424
I am devastated!!! So near to being in the first 100.
I get the correct solution for the first puzzle, and I get the correct sum for puzzles 1 to 10, but my sum for puzzles 1 to 200 is incorrect.
Can anyone give me a hint as to where my error might be? It is not an integer overflow problem.
Thanks
Colin
I get the correct solution for the first puzzle, and I get the correct sum for puzzles 1 to 10, but my sum for puzzles 1 to 200 is incorrect.
Can anyone give me a hint as to where my error might be? It is not an integer overflow problem.
Thanks
Colin
 Marcus_Andrews
 Administrator
 Posts: 1447
 Joined: Wed Nov 09, 2011 5:23 pm
Re: Problem 424
Ensure that each equation does not contain any repeated digits or zeroes. It's possible to sometimes get the right number (i.e. the AJ identifier) even if these constraints aren't met 100%, but this won't work for all cases.
Other than that, this is an inputfile problem  so it may be something "silly" like your code only parsing 199 instead of 200 puzzles because of a oneoff linereading error, etc.
Other than that, this is an inputfile problem  so it may be something "silly" like your code only parsing 199 instead of 200 puzzles because of a oneoff linereading error, etc.
CFB wrote:I am devastated!!! So near to being in the first 100.
I get the correct solution for the first puzzle, and I get the correct sum for puzzles 1 to 10, but my sum for puzzles 1 to 200 is incorrect.
Can anyone give me a hint as to where my error might be? It is not an integer overflow problem.
Thanks
Colin
Re: Problem 424
I found more then one solution even for the sample puzzle; is that possible?
Here is one of my solutions. The difference in show in red.
Here is one of my solutions. The difference in show in red.
Re: Problem 424
In the second row you have two 9's. Every row and coloumn must contain pairwise distinct digits, as far as I know.
Re: Problem 424
I can do them in the newspaper, easily, but can I translate that logic into lines of code? Probably not.
Re: Problem 424
I am finding two (or more) distinct solutions to some puzzles. e.g. line 9 below.
I see no duplicated numbers, and as far as my arithmetic goes, all of the sums add up.
But the two solutions give different contributions to the "sum of the answers ..."
Am I missing a rule here?
(Line 8 has the same problem; but it has (hXX,vXX) combinations, so this is simpler.)
I see no duplicated numbers, and as far as my arithmetic goes, all of the sums add up.
But the two solutions give different contributions to the "sum of the answers ..."
Am I missing a rule here?
(Line 8 has the same problem; but it has (hXX,vXX) combinations, so this is simpler.)
Code: Select all
7,X,(vBB),(vBD),X,X,X,X,(hBB),C,E,(vEE),(vEC),X,X,(hBC),O,O,O,O,X,X,X,(hEF),H,O,A,(vJ),X,X,X,(hBD),O,O,O,(vI),X,X,(hBE),F,O,O,O,X,X,X,X,(hG),O,O
Code: Select all
[8,1,9,0,2,4,5,7,3,6]
X v(BB=11) v(BD=10) X X X X
h(BB=11) 9 2 v(EE=22) v(EC=29) X X
h(BC=19) 2 1 7 9 X X
X h(EF=24) 7 9 8 v(J=6) X
X X h(BD=10) 2 5 3 v(I=3)
X X h(BE=12) 4 7 1 0
X X X X h(G=5) 2 3
=8190245736
[8,1,9,0,2,4,5,7,6,3]
X v(BB=11) v(BD=10) X X X X
h(BB=11) 9 2 v(EE=22) v(EC=29) X X
h(BC=19) 2 1 7 9 X X
X h(EF=24) 7 9 8 v(J=3) X
X X h(BD=10) 2 7 1 v(I=6)
X X h(BE=12) 4 5 2 1
X X X X h(G=5) 0 5
=8190245763
 Marcus_Andrews
 Administrator
 Posts: 1447
 Joined: Wed Nov 09, 2011 5:23 pm
Re: Problem 424
Zeroes are not allowed.
Re: Problem 424
Thanks for that. I's not clear on the problem description (IMHO).Marcus Stuhr wrote:Zeroes are not allowed.
Anyhow, here's hoping that it gets me unique answers.

 Posts: 100
 Joined: Sat Aug 29, 2009 7:49 pm
Re: Problem 424
I get xxxxxxxx through 5. Is that correct? For some reason, my answer for 10 is wrong.
EDIT: Found my mistake. Correct answer for 5 is 35673704235.
EDIT: Found my mistake. Correct answer for 5 is 35673704235.

 Posts: 2
 Joined: Sat Jan 05, 2019 3:08 pm
Re: Problem 424
So can someone confirm that the second puzzle on https://www.conceptispuzzles.com/index. ... kuro/rules actually is not allowed since 1 is used twice in the third column but in different 'blocks'?

 Posts: 2
 Joined: Sat Jan 05, 2019 3:08 pm
Re: Problem 424
My error was because I accepted zeroes. I have it right now.
You may have the same digits in a row or column, as long as the digits in each block are distinct.
You may have the same digits in a row or column, as long as the digits in each block are distinct.