题解 | #买卖股票的最好时机(一)#
买卖股票的最好时机(一)
http://www.nowcoder.com/practice/64b4262d4e6d4f6181cd45446a5821ec
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# 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
#
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# @param prices int整型一维数组
# @return int整型
#
class Solution:
def maxProfit(self , prices ):
if len(prices)== 0 or len(set(prices))== 1:
return 0
min_price=prices[0]
cha=0
max_cha=0
for i in range(len(prices)-1):
cha=max_prices[i]-min_price
if max_cha<= cha:
max_cha=cha
if prices[i]<= min_price:
min_price=prices[i]
return max_cha if max_cha>0 else 0