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Problem BBroken Keyboard (a.k.a. Beiju Text)You're typing a long text with a broken keyboard. Well it's not so badly broken. The only problem with the... 阅读全文
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The figure shown on the left isleft-right symmetricas it is possible to fold the sheet of paper along avertical line, drawn as a dashed line, and to c... 阅读全文
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You are working in a team that writes Incredibly Customizable Programming Codewriter (ICPC) which is basically a text editor with bells and whistles. ... 阅读全文
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Urban ElevationsAn elevation of a collection of buildings is an orthogonal projection of the buildings onto a vertical plane. An external elevation of... 阅读全文
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Updating a DictionaryIn this problem, a dictionary is collection of key-value pairs, where keys are lower-case letters, and values are non-negative in... 阅读全文
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Problem E: Compound WordsYou are to find all the two-word compound words in a dictionary. A two-word compound word is a word in the dictionary that is... 阅读全文