#include <iostream>
using namespace std;
void kub(double &a);
int main(void)
{
double b;
printf("Введите число(целое или с плавающей точкой):\n");
scanf("%lf", &b);
kub(b);
printf("Куб это числа: %f\n", b);
return 0;
}
void kub(double &a)
{
a = a * a * a;
}
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