c program to find average of n natural numbers(for loop while loop)

For beginners
{I am going write the c program but before you need a c compiler.there are a lot of compilers. like Code::Blocks, dev c++  Download dev c++ its free and install it in your computer.open  dev c++ go to file-->new-->source file.}

#include<stdio.h>

#include<conio.h>

main()

{

      int n,c;

      float a,sum=0;

      printf("enter a number\n");

      scanf("%d",&n);

      for(c=1;c<=n;c++)

      {

                      sum=sum+c;

                      printf("%d+",c);

                      }

                      a=sum/(n+1);

                      printf("=%f\n",sum);

                      printf("average=%f",a);

                      getch();

                      }

or

#include<stdio.h>
#include<conio.h>
main()
{
      int n,c=1;
      float a,sum=0;
      printf("enter a number\n");
      scanf("%d",&n);
      while(c<=n)
      {
                      sum=sum+c;
                      printf("%d+",c);
                      c++;
                      }
                      a=sum/(n+1);
                      printf("=%f\n",sum);
                      printf("average=%f",a);
                      getch();
                      }

For beginners

{After typing this program go to execute-->compile & run-->a window will pop-up-->give file name:(anything u like)-->save as type: c source files-->click save.}

output

output of program is

enter a number

4

1+2+3+4+=10.00000

average=2.00000

IS IT HELPFIL? comment.