我想在優化問題的解決方案的幫助下,我已經整理出了問題,但我的代碼是不夠好處理大陣 - codeWars : Sum of Pairs - problem 這裏我的代碼 - var sum_pairs=function(e, sum){
var result=null;
var arrLen=e.length;
for(let i=0;i<arrLen-1;i++){
let ne
這就是我的代碼: def O_C(n, prices, start=1, memo=None):
if start == n:
return 0
if memo is None:
memo = {}
if start not in memo:
options = []
for i in range(start + 1,
我寫了數據類型和實例Monad類。下面是我的源代碼: data UI a = UI { unUI :: a }
deriving Functor
instance Applicative UI where
pure = UI
m *> k = m >>= \ _ -> k
m <* k = m >>= \ _ -> m
m <*> k =
我有一個功能,列出小於N的素數: def ListPrimes(N):
list = [2]
for n in range(3, N, 2):
for i in range(3, int(sqrt(n)+1)):
if n % i == 0:
break
else:
list.append(n)
re
我聽說過記憶的好處,但我不確定它是如何工作的。對於實施例,在: class User < ActiveRecord::Base
def twitter_followers
# assuming twitter_user.followers makes a network call
@twitter_followers ||= twitter_user.follower