#include<stdio.h>
#include<math.h>

void main()
{
    float length,area;

        printf("The length of cube");
        if(scanf("%f",&length)==1)
        {
            area=pow(length,3);
            printf("The volume of cube is %f",area);
        }
        else
        {
            printf("error,enter correct value");
        }

}



=========================================OUTPUT==========================
The length of cube :3.2
The volume of cube is :32.768002

The length of cube :2.345
The volume of cube is :12.895214