Question

This assignment should be relatively easy. Write a program in C language, that reads in numbers from any file, one per line, until it detects that a 0 (zero not an oh') has been entered The 0 does not count as part of the number series. After all numbers have been entered print out the number of items entered, the sum, the minimum value entered, the maximum value entered, and the arithmetic mean (one on each line), in the order listed here.

Answer 1

#include<stdio.h>
#include<limits.h>
void main()
{
//declare file pointer
FILE *fp;
//declare count for counting numbers present in file till 0 is encountered
int count=0;
//declare min and max for getting minimum and maximum number from file
int min=INT_MAX,max=0;
//declare sum and mean for calculating mean of numbers
int sum=0;
float mean=0.0;
//declare number
int number;
//open file for reading
fp=fopen("numbers.txt","r");
//read the number from file
fscanf(fp,"%d",&number);
//read numbers line by line till 0 is encountered
while(number!=0)
{
++count;
if(min>number)
min=number;
if(max<number)
max=number;
sum+=number;
//read next number from file
fscanf(fp,"%d",&number);
}
printf("Number of items = %d\n",count);
printf("Sum = %d\n",sum);
printf("Minimum = %d\n",min);
printf("Maximum = %d\n",max);
printf("Mean = %f\n",(float)sum/count);
}

Output