小白日记7

include<stdio.h>

int main(){
int h,r,t;
scanf("%d %d",&h,&r);
double v,x;
v=3.14rr*h/1000;
x=20/v;
t=(int)x;
if(x==t){
printf("%d\n",t);//初次完整运用了if语言
}
else{
if(x>t);
printf("%d\n",t+1);

}
return 0;

}