读取类型双精度数字并打印数字立方的值

#include <stdio.h>

double cubed(double n); // prototype declaration for cubed

int main(void){
  double input;
  printf("Enter a number to cube: ");
  scanf("%lf", &input);

  printf("%.3f cubed is %.3f/n", input, cubed(input));

  return 0;
}

double cubed(double n){
  return n * n * n;
}