3 ms·

I solved about 80 of them, then my interest waned a little. But I wonder, are there any hints or recommended reading for the harder ones? Some of them I have no

I solved about 80 of them, then my interest waned a little. But I wonder, are there any hints or recommended reading for the harder ones? Some of them I have no idea how to even start working on..

dominotw 13y ago
> Some of them I have no idea how to even start working on Do you have an example of such a problem?
- asgard1024 13y ago
  I am sorry, it's like 5 years back when I did it, and I don't remember (nor I am inclined in pursuing it further). (I didn't gave up because it became impossible, I just became less interested.) But lot of those harder ones - as far as I can tell - required pretty deep knowledge of number theory, which even though I studied math (10 years ago), didn't have. I think it would be nice if there was sometimes a hint about what the people should study to be able to solve it.
- cdelsolar 13y ago
  I became obsessed with this problem recently: http://projecteuler.net/problem=436 http://projecteuler.net/problem=436 and couldn't solve it. I found an article on mathworld that says the number of expected rolls is e so that the sum is over 1. I don't know how to figure out what the value of the roll that gets you over 1 is, it's something like 0.64 from simulation but what does that number mean and why?
- rsmaniak 13y ago
  I have the same problem, this one for instance http://projecteuler.net/problem=267 http://projecteuler.net/problem=267 I have absolutely no clue how to approach.
joshdick 13y ago
After the first hundred or so, you start to need more and more math. If you don't know what to look for off the top of your head (which you probably wouldn't without a math degree), try to google around for math that looks relevant to your problem. I find http://mathworld.wolfram.com/ http://mathworld.wolfram.com/ and http://oeis.org/ http://oeis.org/ to be very helpful for this.

3 ms·

I solved about 80 of them, then my interest waned a little. But I wonder, are there any hints or recommended reading for the harder ones? Some of them I have no

by asgard1024 13y ago

I solved about 80 of them, then my interest waned a little. But I wonder, are there any hints or recommended reading for the harder ones? Some of them I have no idea how to even start working on..

dominotw 13y ago
> Some of them I have no idea how to even start working on Do you have an example of such a problem?
- asgard1024 13y ago
  I am sorry, it's like 5 years back when I did it, and I don't remember (nor I am inclined in pursuing it further). (I didn't gave up because it became impossible, I just became less interested.) But lot of those harder ones - as far as I can tell - required pretty deep knowledge of number theory, which even though I studied math (10 years ago), didn't have. I think it would be nice if there was sometimes a hint about what the people should study to be able to solve it.
- cdelsolar 13y ago
  I became obsessed with this problem recently: http://projecteuler.net/problem=436 http://projecteuler.net/problem=436 and couldn't solve it. I found an article on mathworld that says the number of expected rolls is e so that the sum is over 1. I don't know how to figure out what the value of the roll that gets you over 1 is, it's something like 0.64 from simulation but what does that number mean and why?
- rsmaniak 13y ago
  I have the same problem, this one for instance http://projecteuler.net/problem=267 http://projecteuler.net/problem=267 I have absolutely no clue how to approach.
joshdick 13y ago
After the first hundred or so, you start to need more and more math. If you don't know what to look for off the top of your head (which you probably wouldn't without a math degree), try to google around for math that looks relevant to your problem. I find http://mathworld.wolfram.com/ http://mathworld.wolfram.com/ and http://oeis.org/ http://oeis.org/ to be very helpful for this.