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

const float pi = 3.142;

float op(float r, float h)
{
    float surface_area;
    surface_area = (2 * pi * r * h) + (2 * pi * r * r); 
    printf("Surface area of cylinder is: %f", surface_area);
}

float main()
{
    system("cls");
    float r, h;
    printf("Enter the radius of the cylinder: ");
    scanf("%f", &r);
    printf("Enter the height of the cylinder: ");
    scanf("%f", &h);
    op(r, h);
    return 0;
}
//.......Coded by YASH ALLAPURIA