链接http://acm.swust.edu.cn/problem/0046/
#include <stdio.h> int main() { double m; int n; double distance=0; scanf("%lf %d",&m,&n); while(n--) { distance+=m+m/2; m/=2; } printf("%.2lf %.2lf\n",m,distance-m); return 0; }
原文：http://www.cnblogs.com/niconiconi/p/5720478.html