#include <stdio.h>
int main () {
    double height,bounce,n;
    height=100;
    bounce=height/2;
    for(n=2;n<=10;n++){
   height=height+2*bounce;
   bounce=bounce/2;
    }
    printf("共经过%f米：\n",height);
    printf("第十次弹了%f米：\n",bounce);
    return 0;
}