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- Project Euler 267: Billionaire
- Making decisions under uncertainty in everyday life
- Taking a break
- Project Euler 146: Investigating a Prime Pattern
- Project Euler 145: How many reversible numbers are there below one-billion?
- UVa Online Judge New Platform
- Project Euler 144: Investigating multiple reflections of a laser beam.
- Project Euler 143: Investigating the Torricelli point of a triangle
- Project Euler 142: Perfect Square Collection
- Project Euler 141:Investigating progressive numbers, n, which are also square.

**Julian**: Ok, I give up. The code has been cut off again......**Julian**: Mh, a piece of code was cut of, sorry.[code language="java"][/code] int checkNr = 209; // 2*3*5*7 = 210 -> -1 because the number will be inc...**Julian**: Here is my solution. I did not use a prime list and the solution took me 15 ms.[code language="java"][/code] int checkNr = 209; // 2*3*5*7 = 210 ...**Julian**: This is my solution. I did not see, that the pentagonals are a subset of the triangles, so I checked for both. Nevertheless my code runs in 0 ms. Lan...**Julian**: Here a very dirty example, but the solution is correct and it took 0 ms. [code language="java"] import java.math.BigInteger; public class P_043_Sub...**aa1992**: instead of starting the loop from 2..it can be more optimised by starting it from 10;As single digit numbers are avoided...

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