Question

Write a program that will ask for the user to input a filename of a text file that contains an unknown number of integers. And also an output filename to display results. You will read all of the integers from the input file, and store them in an array. (You may need to read all the values in the file once just to get the total count) Using this array you will find the max number, min number, average value, and standard deviation. These results will be reported to both the screen and placed into the output file that the user choose.

Output to screen and file could look like this:

Read from file: 12 values

Maximum value = 20

Minimum value = 3

Average value = 13.34

Standard Deviation = 2.15

You can create a simple NotePad file to store a bunch of integers, just make sure that there is at least a space or a line between each number

Answer 1

The whole is implemented in python

f1=input("Enter the filename to read:- ") d1=input("Enter the filename to display:- ") l=[] p=[] with open(f1) as f:    r=f.readlines()    #preprocessing the file and storing in a list.    for i in r:        l.extend(i.split(" "))    for s in l:        p.append(s.strip("\n"))    l=[]    for i in p:        if(i!=''):            l.append(int(i))    #total vals    tval=len(l)    #min    mn=min(l)    #max    mx=max(l)    #Average    avg=sum(l)/tval    #Standard deviatin    std=0.0    for i in l:        std=std+((i-avg)**2)    std=std/tval    std=std**0.5    #Displaying results    print("Read from file: %d"%(tval))    print("Maximum Value: %d"%(mx))    print("Minimum Value: %d"%(mn))    print("Average Value: %.2f"%(avg))    print("Standard Deviation: %.2f"%(std))    #Writing to file    d = open(d1, "w")    d.write("Read from file:%d\n"%(tval))    d.write("Maximum Value: %d\n"%(mx))    d.write("Minimum Value: %d\n"%(mn))    d.write("Average Value: %.2f\n"%(avg))    d.write("Standard Deviation: %.2f\n"%(std))    d.close()

Output Output in file...