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## 2010/02/04

### 最長的一日

To me it was a bit like one of the adventures of Sherlock Holmes. At first the problem looked puzzling and rather impossible to explain. ("This is a most extraordinary case," said Holmes, "a most incomprehensible affair.") I abstracted it to a pure computational problem and looked for clues to guide my search and evidences to eliminate impossible situations, and steadily the answer was approached and finally reached, which was in fact simple. Even though it was not a hard problem (similar but no harder than debugging a program), I did feel the excitement of problem solving once again. I used Excel formulas, pivot tables, and VBA, practically practicing all my knowledge about Excel, including some recently picked-up one. Except for being physically tired (which reminded me of the days working on TOY86 and AoPA, which were actually much crazier than this), I was, in fact, quite satisfied. XD

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Anonymous2/05/2010 6:57 am 說：

Airman Of Chunghua Wind2/05/2010 2:10 pm 說：

Airman Of Chunghua Wind2/05/2010 2:13 pm 說：

Josh Ko2/06/2010 11:44 am 說：

Marvelous Pine2/06/2010 3:44 pm 說：

Airman Of Chunghua Wind2/07/2010 11:59 am 說：

XOO2/07/2010 9:43 pm 說：

>他說在美國沒有車子，光靠大眾交通運輸太不方便了

btw, 我找到別人寫好的 JavsScript 可以直接用 LaTeX 語法轉 MathML。看我的範例：http://xcyclxoo.blogspot.com/