Project Euler Problem2

时间:2023-11-13 23:52:02

Even Fibonacci numbers

Problem 2

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

Answer:

 def isEven(a):
if a%2 == 0:
return True
return False Max = 4000000 a = 0
b = 1
c = 0
count = 0
while True:
c = a + b
if(c > Max):
break
if isEven(c):
count += c
a = b
b = c print("the result is ", count)