题解 | 弹地小球
弹地小球
https://www.nowcoder.com/practice/0e3301735881444d902834df9b13a74c
#include <stdio.h>
int main() {
int m;
scanf("%d",&m);
for(int j=1;j<=m;j++){
int h,n;
scanf("%d%d",&h,&n);
float zonglucheng=h;
float t=h;
for(int i=1;i<=n-1;i++ ){
t=t/2;
zonglucheng=zonglucheng+t*2;
}
printf("%.2f\n",zonglucheng);
}
}
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