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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
posted @ 2014-11-21 15:25
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Problem EForeign ExchangeInput:standard inputOutput:standard outputTime Limit:1 secondYour non-profit organization (iCORE-internationalConfederation o... 阅读全文
posted @ 2014-11-21 10:50
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