## Search found 4 matches

- Tue Sep 09, 2014 10:58 pm
- Forum: News, Suggestions, and FAQ
- Topic: Project Euler Returns
- Replies:
**80** - Views:
**20611**

### Re: Project Euler Returns

I managed to log in under the new system, and was prompted to update my password. Unfortunately, I did not see the notification saying "accounts are irrecoverable," and did not write down my password... which I have since forgotten. Is there any hope of a recovery being available, or should I start ...

- Fri Mar 30, 2012 2:12 am
- Forum: Resources
- Topic: Resources for Programming Competitions?
- Replies:
**4** - Views:
**9212**

### Re: Resources for Programming Competitions?

There are some good tutorial articles at http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=alg_index . It is also worth reading the editorials for past competitions as these contain worked solutions for all their competition problems. http://apps.topcoder.com/wiki/display/tc/Algorithm+...

- Wed Mar 28, 2012 1:29 am
- Forum: Resources
- Topic: Resources for Programming Competitions?
- Replies:
**4** - Views:
**9212**

### Resources for Programming Competitions?

I'm a high school student who has been bitten by the programming bug. :) I've competed at UVa's ACM High School Programming Competition, and made it fairly far, but couldn't solve the last few problems. (I didn't know about graphs/shortest-path algorithms, so I'm studying those now.) I'd like perfor...

- Sat Feb 04, 2012 2:41 am
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 027
- Replies:
**16** - Views:
**4860**

### Re: Problem 027

I realize this was posted a long time ago, but I thought I'd post just in case someone else had the same question. 2. can primes repeat? for instance x^2 - 2x + 1601 is the same prime (1601) for n = 0 and n = 2 Yes - the given equation n^2 - 79n + 1601 produces 80 primes, 40 of which are repeats. //...