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C Exercise Example 20 - Small ball free fall

100 cases of classic C language 100 cases of classic C language

Title: a ball free fall from a height of 100 meters, after each landing anti jump back half its original height; down again, find it at the 10th floor, after a total of how many meters? 10th rebound tall?

Program analysis: See the note below.

Source Code:

//  Created by www.w3big.com on 15/11/9.
//  Copyright © 2015年 本教程. All rights reserved.
//

#include<stdio.h>
int main()
{
    float h,s;
    h=s=100;
    h=h/2; //第一次反弹高度
    for(int i=2;i<=10;i++)
    {
        s=s+2*h;
        h=h/2;
    }
    printf("第10次落地时,共经过%f米,第10次反弹高%f米\n",s,h);
    return 0;
}

The above example output is:

第10次落地时,共经过299.609375米,第10次反弹高0.097656米

100 cases of classic C language 100 cases of classic C language