王峰炬

摘要： A problem provided by me and solved by mathe in bbs.emath.ac.cn(See: http://zdu.spaces.live.com/blog/cns!C95152CB25EF2037!136.entry) In http... 阅读全文

摘要： Problem1: Least k such that H(k) >= n, where H(k) is the harmonic number sum_{i=1..k} 1/i. Sub Harmonic_number_sum() Dim s As Double, i As Long,... 阅读全文

摘要： 123456789这九个按顺序排列的数，要求在它们之间插入若干个+，-，*，/ ，使其结果正好等于100如： 1*2*3*4+5+6+7*8+9=100 以下代码在http://blog.csdn.net/northwolves/archive/2004/07/25/51038.aspx基础上... 阅读全文