有人可以告訴我爲什麼這應該是錯的嗎?與Python的歐拉項目2號
#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, ...
#Find the sum of all the even-valued terms in the sequence
#which do not exceed four million.
sum=2
list = [1,2]
for x in range(2,100):
a = list[x-2]+list[x-1]
print(a)
list.append(a)
if a % 2 == 0:
sum += a
print('sum', sum)
if sum >= 4000000:
break
當您嘗試運行它時,會出現什麼問題?你得到一個錯誤的結果?你有錯誤嗎? – Wesley 2010-01-15 20:37:59
我也讀過這個問題(但以不同的方式):http://stackoverflow.com/questions/736495/haskell-script-running-out-of-space – 2010-01-15 20:42:45
順便說一句,前兩個斐波納契數字都是1 ...但當然,這並不影響偶數項的總和。 :) – 2010-01-15 22:15:04