For each test case, output one line containing the sounds made by the fox, in the order from the recording. You may assume that the fox was not silent (contrary to popular belief, foxes do not communicate by Morse code). 题解: 难度不大,就是如果用C写的话,处理字符串时很烦,细节要搞好。
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In Morse code, the letters CQ are sent to indicate that a message is intended for all stations and D is used to indicate that a message is urgent. In 1904, it was suggested that C Q D (with spaces, i.e., -.-. --.- -..) be adopted as a distress signal by ships, to be ...
Norman Joseph Woodland invented barcode numbers when drawing a series of lines in the sand to represent the Bernard Silver code and the Morse code. He then developed the barcode concept and got a patent in 1966. NCR was the first company in the world to use a commercial barcode scanner to...
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