作者Kuba4ma ()
看板Python
標題[問題] leetcode 1287
時間Thu Apr 23 22:55:17 2020
題目:
Given an integer array sorted in non-decreasing order, there is exactly one
integer in the array that occurs more than 25% of the time.
Return that integer.
Example 1:
Input: arr = [1,2,2,6,6,6,6,7,10]
Output: 6
Constraints:
1 <= arr.length <= 10^4
0 <= arr[i] <= 10^5
code:
class Solution(object):
def findSpecialInteger(self, arr):
"""
:type arr: List[int]
:rtype: int
"""
dic={}
dic=Counter(arr)
for i in dic:
if (dic[i]/len(arr))>0.25:
return i
問題:
我用Visual Studio Code的編譯器跑出來沒問題,但leetcode會跑出None,不知道
哪裡出問題了
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 49.216.60.243 (臺灣)
※ 文章網址: https://www.ptt.cc/bbs/Python/M.1587653719.A.314.html
推 cuteSquirrel: dic[i] * 1.0 / len(arr) 就可以了 04/23 23:29
→ cuteSquirrel: Python 2.X 的 / 假如沒有轉浮點數,預設是整數除法 04/23 23:32
推 mirror0227: 同樓上,Python哪一版要搞清楚 04/23 23:42
推 moodoa3583: 既然都用Counter了怎麼不取most_commons就好,題目說 04/24 00:27
→ moodoa3583: 只會有一個解 04/24 00:27
→ Jyery: 同樓上 用most_commons解 04/29 21:46