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无语的一个下午。。。 13行,贴代码#include<stdio.h> int main() { int n,m,i; while(scanf("%d%d",&n,&m) && (n || m)) { double c=1.0; for(i=n;i>n-m;i--) c*=i; for(i=m;i>1;i--) c/=i; printf("%d things taken %d at a time is %.0lf exactly.\n",n,m,c); } return 0; } Followed by:
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