5-11

//5-11#include <stdio.h>#include <stdlib.h>int main(){    float max=100;    float sum=-max;    int i;    for(i=1;i<=10;i++)    {        sum=sum+max*2;        max=max/2.0;    }    printf("共经过%f米\n第10次反弹%f米高\n",sum,max);}