摘要:
题目: For 2 non-negative integers x and y, f(x, y) is defined as the number of different bits in the binary format of x and y. For example, f(2, 3)=1,f( 阅读全文
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English reading: bartender == barmaid:酒吧女招待 milliliter:毫升;千分之一毫升 foam:泡沫 a glass of beer with a good head of foam:上面有厚厚一层泡沫的一杯啤酒 the greenness of the 阅读全文