Thread: simple c code for min, max and mean

Look at this snippet:

Code:

        if (i < min)
            i = min;
        if (i > max)
            i = max;

It looks like you have your assignment backwards. Don't you want to assign the value to min or max not to i?

Jim

Here is my edited version (using a for loop now). However I still cannot get the output I want.

Code:

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


int main(void)
{
        int r = 0;//for scanf value


        float min = 100001;
        float max = -100001;


        float total = 0;
        float mean = 0;


        for (int count = 1; r != EOF; count++)
        {
                float i = 0;//for input
                r = scanf("%f", &i);
                if (r == EOF)//when user ctrl-d EOFs, exit loop
                        break;


                if (i < min)
                        min = i;
                if (i > max)
                        max = i;
                total = total + i;//running total
                mean = total/count;


        }
        printf("%.2f %.2f %.2f\n", min, max, mean);//print 2 decimal places


        return 0;
}

However I still cannot get the output I want.

With a given input, what output do you desire, and what is your program returning?


Jim

@ Jim, I want to input any number of floating point values, separated by newline, and the output the smallest value seen, the largest value seen and the arithmetic mean on a single line to two decimal places, separated by a space.

Example Input:
7
5.6
6

Output:

5.60 7.00 6.20

I am sorry but my post did not get cleared by moderators.

My code actually worked after revision.
However, now I have a new question regarding how to ignore new lines in input using scanf?