Today's Challenge

https://leetcode.com/problems/maximum-points-you-can-obtain-from-cards/

Maximum Points You Can Obtain from Cards - LeetCode

오랜만에 내 손으로 풀어본 문제.
5번 재제출만에 풂 ㅋㅋㅋㅋ

그냥 직관적으로 풀면 되는데.. index가 자꾸 헷갈려서 몇 번 틀린 듯 ㅠㅠ

class Solution:
    def maxScore(self, cardPoints: List[int], k: int) -> int:
        a = copy.deepcopy(cardPoints)
        b = copy.deepcopy(cardPoints)
        l = len(cardPoints)
        if l == k:
            return sum(cardPoints)

        for i in range(1, l):
            a[i] += a[i - 1]
            b[l - i - 1] += b[l - i]

        res = max(a[k - 1], b[-k])
        for i in range(0, k - 1):
            res = max(res, a[i] + b[(l-(k-i-1))])

        return res