Average of any 150 numbers as input with loop ?

[yazzy]

Hello guys ,
i have a homework (which i will not ask for solution) just asking for 1 problem hint.

The homework is to get the Max , Min , Sum and Avg for any 150 numbers you input
i figure all out except for the Avg formula.

like if you input 40 as first input
u get :
minimum value:40
maximum value:40
Sum: 40
Average: 40

second input: 100
min:40
max:100
sum:140
average:70

and so on...i just cant figure out how to do the average for it :S
any help with be appreciated !

[Bazzy]

you just need to divide the sum by the number of inputs

[yazzy]

how can i know the number of inputs at the time
like in the second input how can i know the number of inputs is 2 by that time and the third input is 3 xD thats a problem for me xD sorry but im new to C++

[DCC1]

Perhaps try incrementing a variable when you get each input.

[Return 0]

Use a counter variable int counter = 0;. Each time the input loop completes, increment counter by 1: counter++;. Each time you output the average you can simply cout << "average:" << sum/count;

[yazzy]

thanks that helped alot =) reallly !
now im facing somthin i didnt expect !!
i cant do the minimum value all other operations are working well only minimum value
i cant figure it out too

i figured out the maximum value
int max=0;
and i use if(x>max)
max=x
cout<<"maximum value:"<<max<<endl;

but how can i do the minimum?

[DCC1]

If you are trying to find the minimum value of input, try something like:

int min = 0;
if (x < min)
   min = x;

Assuming x is the input.

[yazzy]

what if i didnt even input anythin less than 0

then the minimum value is gona still be zero while it might be 20 or 10 do u get me thats the problem that im facing here

[Zhuge]

Instead of initializing at 0, initialize them to the first input value.

[DCC1]

My apologies - Zhuge's method will solve this problem.

[Duthomhas]

Yes, exactly. You can use your counter variable to know whether or not to initialize min with the input or test it against the input.

For example, where input_value is the value you got from the user:

if (counter == 0)
  {
  min = input_value;
  max = input_value;
  ...
  }
else
  {
  if (input_value < min)
    min = input_value;
  ...
  }

counter++;

Hope this helps.