a simple program in python , I am stumped

Question

m = 0
for i in range(1,1000):
    if i % 3 == 0 or i % 5 == 0:
        m += m
print m

This gives 0 as answer. Answer should be 233168.

Could the line ending in my IDE be an issue? I am using pycharm.

EDIT: note to self - take a break. I found the typo as soon as I posted this. I was having some problem with ide and line ending just before this. anyway thanks :) Troll away

Err, you're adding `m` to `m` which always is `0`. What else do you expect? — favoretti, Oct 02 '12 at 23:46

score 5 · Accepted Answer · edited Oct 02 '12 at 23:47

5

Note the line:

m += m

You're adding m to m itself; i.e. you're always adding 0 to 0.

You probably meant:

m += i

edited Oct 02 '12 at 23:47

the Tin Man

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answered Oct 02 '12 at 23:46

millimoose

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holy crap >.< i need to sleep before starting on project euler problems. thanks – Abhishek Dujari Oct 02 '12 at 23:48

a simple program in python , I am stumped

1 Answers1