[c language] PTA 7-63 falling ball

The ball falls freely from a given height , Bounce back to half the original height after touching the ground , And then fall , Bounce back ,……, So again and again . Ask where the ball is n The next landing , How much distance has it traveled in the air ？ The first n What is the height of the rebound ？

Input format :

Input gives two nonnegative integers in one line , Are the initial height of the ball and n, Are in the range of long integers .

Output format :

Output the balls in order in one line n The distance traveled in the air during the first landing 、 And the first n The height of the second rebound , Separated by a space , Keep one decimal place . The calculation results should not exceed the double precision range .

sample input :

33 5

No blank lines at the end

sample output :

94.9 1.0

No blank lines at the end

#include<stdio.h>
int main(){
    int n,h0;
    double h;
    double s;
    int i;
    scanf("%d %d",&h0,&n);
    h=(double)h0;
    s=-(double)h0;// For convenience s=s+2*h So deal with it in advance s
    
    if(n==0){// No more words   Why 0 The secondary rebound height is also 0 Well ？？
        printf("%.1f %.1f",0.0,0.0);
    }
    else{
    for(i=1;i<=n;i++){
        s=s+2*h;
        h=h/2;
        //    printf("%.1f %.1f\n",s,h);
    } 
    
    printf("%.1f %.1f",s,h);
    }
    return 0;
}