11 - 15 PROGRAMS

                                                                                                                                                 

/* ***************************************************
                    11.  To Find the Volume of Cylinder
    ************************************************** */

   #include<*stdio.h>
   #include<*conio.h>
   #define pi 3.14
   void main()
    {
    float r,h,v;
    clrscr();
    printf("\n Enter the Values of :\n");
    printf("\n Radius of Cylinder =  ");
    scanf("%f", &r);
    printf("\n Length/Height of Cylinder = ");
    scanf("%f", &h);
    v = pi*r*r*h;
    printf("\n\n Volume of Given Cylinder is : %f ", v);
    getch();
    }

   Output :
   Enter the Values of :
   Radius of Cylinder = 1
   Length/Height of Cylinder = 2

   Volume of Given Cylinder is : 6.28

                                                                                                                                                  

/* *************************************************
  12. To Impliment Various Arithmetic Operations all at a time
    ************************************************** */

    #include<*stdio.h>
   #include<*conio.h>

   void main()
    {
    float a,b,sum,diff,mul,div;
    clrscr();
    printf("\n Enter any Two Values to do all Arithmetic Operations : ");
    scanf("%f %f", &a, &b);
    sum = a+b;
    printf("\n %f + %f = %f \n", a, b, sum);
    diff = a-b;
    printf("\n %f - %f = %f \n", a, b, diff);
    mul = a*b;
    printf("\n %f * %f = %f \n", a, b, mul);
    div = a/b;
    printf("\n %f / %f = %f \n", a, b, div);
    getch();
    }

   Output :

   Enter any Two Values to do all Arithmetic Operations : 2 4

   2 + 4 = 6
   2 - 4  = -2
   2 * 4 = 8
   2 / 4 = 0.5 

                                                                                                                                                 

/* **************************************************
              13.  To Find the Sum of first 'n' Natural Numbers
     ************************************************* */

   #include<*stdio.h>
   #include<*conio.h>

   void main()
    {
    int n,sn1;
    clrscr();
    printf("\n Enter n,To Find Sum of First n Natural Numbers : ");
    scanf("%d", &n);
    sn1 = n*(n+1)/2;
    printf("\n\n Sum of First %d Natural Numbers is : %d", n, sn1);
    getch();
    }

   Output :

   Enter The Values of n,To Find Sum of First n Natural Numbers : 5

   Sum of First 5 Natural Numbers is : 15

                                                                                                                                                         

/* ***************************************************
  14. To Find the Sum of Squares of First 'n' Natural Numbers
     ************************************************ */

    #include<*stdio.h>
   #include<*conio.h>

   void main()
    {
    int n,sn2;
    clrscr();
    printf("\n Enter n,To Find Sum of Squares of First n Natural Numbers : ");
    scanf("%d", &n);
    sn2 = n*(n+1)*(2*n+1)/6;
    printf("\n\n Sum of Squares of First %d Natural Numbers is : %d", n, sn2);
    getch();
    }

   Output :

   Enter The Value of n,To Find Sum of Squares of First n Natural Numbers : 5

   Sum of Squares of First 5  Natural Numbers is : 55

                                                                                                                                               

/* **************************************************
   15. To Find the Sum of Cubes of First 'n' Natural Numbers
     ************************************************ */

   #include<*stdio.h>
   #include<*conio.h>

   void main()
    {
    int n,sn3;
    clrscr();
    printf("\n Enter n,To Find Sum of Cubes of First n Natural Numbers : ");
    scanf("%d", &n);
    sn3 = n*(n+1)*(n+1)*n/4;
    printf("\n\n Sum of Cubes of First %d Natural Numbers is : %d", n, sn3);
    getch();
    }

   Output :

   Enter The Values of n,To Find Sum of Cubes of First n Natural Numbers : 5
  
   Sum of Cubes of First 5 Natral Numbers is : 225