标题: 【转贴】google的一道面试题,有能力就施展下吧！ [打印本页] 作者: csdsq 时间: 2006-7-15 19:18 标题: 【转贴】google的一道面试题,有能力就施展下吧！ onsider a function which, for a given whole number n,
returns the number of ones required when writing out all numbers between 0 and n.
For example, f(13)=6. Notice that f(1)=1. What is the next largest n such that f(n)=n?