The problem of adding up the Numbers is that Sn=a+aa+aaa+aaaa+aaaaa+... For the DOS interface, because of the limited level, I hope to understand!

Packet : 33753139shuzisuan.zip filelist
shuzisuan/
shuzisuan/Debug/
shuzisuan/shuzishuan.cpp
shuzisuan/shuzisuan.dsp
shuzisuan/shuzisuan.dsw
shuzisuan/shuzisuan.ncb
shuzisuan/shuzisuan.opt
shuzisuan/shuzisuan.plg

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