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- 03:31, 27 June 2011 diff hist +1,259 Euler problems/41 to 50 →Problem 43: Both other solutions take >20 seconds. This takes <0.1 seconds..
- 12:12, 26 June 2011 diff hist -42 Euler problems/41 to 50 →Problem 41: It's tiring to see code which has been hacked together after the solution has been found to optimize it. e.g. Why was there the assumption that it was a 7-digit pandigital?
- 10:25, 11 June 2011 diff hist +193 Euler problems/21 to 30 →Problem 29