project euler question 2

Question

i've started working on the Project Euler codeing problems to get more familiar with coding. For question 2 my code seems to "exceed the memory limit". I can't tell if I did something wrong or if my computer just can't handle that many numbers. I would appreciate it if someone could tell me if my code is correct or not. Thank you

it reads as:

a = sum([x for x in range (4000000) if ((x%2 ==0))])
print(str(a))

Answer 1

Your code worked on my PC, but I think the problem is that you're creating a list. Try to use a generator, instead.

a = sum(x for x in range(4000000) if (x % 2 == 0))
print(a)

Note that I just removed the brackets.

Answer 2

See what Gauss did
http://mathcentral.uregina.ca/QQ/database/QQ.02.06/jo1.html
its not the final answer but it will point you in the right direction

Answer 3

Thanks everyone! I really appreciate your help

Answer 4

gives output: 3999998000000
probably is that your computer can't handle it.

if i read that correctly it adds every even number between 0 and 3999999 together
2+4+6+8+10+12+14+16 and so on.