Question

p p+ 1 endwhile 2. Design a program that allows a user to enter any quantity of numbers until a negative number is entered. Then display the highest number and the lowest number

must be in python

Answer 1

Program:

# set repeat to true, variable used for looping
repeat = True
count = 0
lowest = -1
highest = -1
# run a loop as long as repeat is true
while repeat:
    # read a number from the user
    n = int(input("Enter a number (negative number to quit):"))
    # set repeat to false to terminate the loop if a negative number is entered
    if(n < 0):
        repeat = False
    # proceed if positive number is entered
    else:
        # if the number entered is first number, assume it be highest and lowest
        if (count == 0):
            lowest = n
            highest = n
        # if not the first number, then find the highest and lowest numbers
        else:
            # if the number is less than lowest store n in lowest
            if(n < lowest):
                lowest = n
            # if the number is greater than highest store n in highest
            if(n > highest):
                highest = n
        # increment the count of numbers read
        count = count + 1
# if no numbers are entered display appropriate message
if(count == 0):
    print("No numbers entered.")
# else display the highest and lowest number
else:
    print("\nThe highest number entered is: " + str(highest))
    print("The lowest number entered is: " + str(lowest))

              

Output:

Python 3.64 Shell File Edit She Debug Options Window Help Python 3.6.4 (V3.6.4:d48eceb, Dec 19 2017, 06:04:45) [MSC v.1900 32 bit (Intel) ] on win32 Type "copyright", "credits" or "license () " for more information. RESTART: C:/Users/Madhuri/AppData/Local/Programs/Python/Python36-32/HighestLow est . ру Enter a number (negative number to quit) :23 Enter a number (negative number to quit) :14 Enter a number (negative number to quit) :25 Enter a number (negative number to quit) :1 Enter a number (negative number to quit) :02 Enter a number (negative number to quit) :36 Enter a number (negative number to quit) :15 Enter a number (negative number to quit) :12 Enter a number (negative number to quit):-12 The highest number entered is: 36 The lowest number entered is: l Ln: 17 Col: 4

Program Screenshot:

Highestlowest.py - C:/Users/Madhuri/AppData/Local/Programs/Python/Python36-32/Highe. File Edit Format Run Options Window Help # set repeat to true, variable used for looping repeat - True count0 lowest-l highest1 # run a loop as long as repeat is true while repeat: # read a number from the user n - int (input ("Enter a number (negative number to quit):")) # set repeat to false to terminate the loop if a negative number is entered if (n0): repeatFalse # proceed if positive number is entered else: # if the number entered is first number, assume it be highest and lowe st if (count 0) lowest - n highest n # if not the first number, then find the highest and lowest numbers else: # if the number is less than lowest store n in lowest if (n <lowest): lowest - n # if the number is greater than highest store n in highest if (n > highest) highest n # increment the count of numbers read countcount+ 1 # if no numbers are entered display appropriate message if (count0): print ("No numbers entered.") # else display the highest and lowest numbe else: print ("nThe highest number entered is:"+ str (highest)) print ("The 1owest number entered is:"+str (lowest)) Ln: 32 Col: 44

Let me know if you have any concerns with the above solution.