摘要:
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
摘要:
Problem EForeign ExchangeInput:standard inputOutput:standard outputTime Limit:1 secondYour non-profit organization (iCORE-internationalConfederation o... 阅读全文