CODEWITHSUNDEEP
pythonlistfunctionfor-loopmax
user4139413
user4139413

Reputation:

How do you find the maximum number in a list without using the function "max"?

I'm a beginner at programming, and I'm trying to create a program that generates 1000 random numbers, and then prints out the highest value of the numbers in the list of numbers (I am aware that my program only outputs 10 numbers, it is because I'm trying to debug the program). I already have a program, but it's not working. The problem is, the program will output these seemingly random numbers, sometimes its the largest number, and other times its a list of more than one number. Help would be greatly appreciated.

import random
num_list=[]
largest=[]
maximum=-1
while len(num_list)<10:
    numbers=random.randrange(0,11)
    numbers=int(float(numbers))
    num_list.append(numbers)
if len(num_list)==10:
    print num_list
    for num in num_list:
        if num>maximum:
            maximum=num
            largest.append(num)
    print largest

Upvotes: 0

Views: 6875

Answers (3)

Malonge
Malonge

Reputation: 2040

A more efficient way of doing this:

numList = []
for i in range(10):
    numList.append(random.randrange(0,11))

maxNum = -1
for i in numList:
    if i > maxNum:
        maxNum = i

print(maxNum)

Upvotes: 2

Barry Rogerson
Barry Rogerson

Reputation: 598

reduce(lambda x, y: x if x > y else y, [random.randrange(0,11) for i in range(10)])

Upvotes: 0

John La Rooy
John La Rooy

Reputation: 304483

This makes no sense

        maximum=num
        maximum.append(num)

perhaps you mean this

        maximum=num
        largest.append(num)

Upvotes: 1

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