Thread: program to find the range and average

hi.
i need to find the average and range of numbers entered by the user.
the user can enter as many terms as possible.
the user should enter a negative number to end.
i was able to do it with "goto".
but i need to do the program using if...else..
here's the code using "goto"

Code:

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

int main()
 {
  int count;
  float value,high,low,sum,average,range;
  sum = 0;
  count = 0;
  printf("Enter numbers in a row\n.Enter negative number to end");
  input:
     scanf("%f",&value);
	 if(value<0) goto output;
	   count = count + 1;
	 if(count ==  1)
	    high = low = value;
	   else if(value>high)
	       high = value;
		   else if(value<low)
		      low = value;
     sum = sum + value;
	 goto input;
  output:
     average = sum/count;
	 range = high - low;
	 printf("\n\n");
	 printf("Total values : %d\n",count);
	 printf("Highest value : %f\nLowest value : %f\n",high,low);
	 printf("Range    : %f\nAverage  : %f\n",range,average);
	 return 0;
  }

can you please post the entire code.
Beacause i have learnt only till "if...else.." statements.
I haven't yet learnt while loops.
There in the next chapter in my textbook.
So can you please post the entire code.

And is it possible to solve it using "if..else.."?

ok.I will first learn.and think about this problem.
actually it's a very long chapter.
and i am a first timer.So i thought if this problem could be solved using "if..else.."
so that i can understand.
any way i will learn and then try to solve it.

Originally Posted by narendrav

the user can enter as many terms as possible.

because of this requirement you will HAVE to loop in some way...there is really no
way to accept unlimited amount of input without having a loop (goto, while etc..)

IE you would have to have a LIMIT on the amount of input and then have a scanf (hopefully better call then that..) to get EACH value (you could combine them into one scanf if you want the input all on one line...)

then you can do your calculations with numerous if/else if/else statements (would depend on the finite limit of data, on how many you would need to accomplish this)

Its really making your life 100 times more difficult NOT using a loop...(by difficult I mean impossible if you want UNLIMITED input)

yes.i understand.
thanks @nonpuz.
its practically impossible to continuosly read data without using loops.
thanks for the detailed explanation.