我不理解为什么要等到a的立方大于n时才输出，逆天
求解立方根
https://www.nowcoder.com/practice/caf35ae421194a1090c22fe223357dca
#include <stdio.h>
int main(){
double gen,n,a=0;int tap=1;
scanf("%lf",&n);
if(n<0){n=-n;tap=0;}
while(1){
if(a*a*a>n){
if(tap==0)
printf("-%.1f",a);
else printf("%.1f",a);
break;
}
a+=0.01;
}
return 0;
}
