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2023.12.08 Today's Challenge 본문

Problem Solving/LeetCode

2023.12.08 Today's Challenge

fabichoi 2023. 12. 8. 23:45

https://leetcode.com/problems/calculate-money-in-leetcode-bank/?envType=daily-question&envId=2023-12-06

 

Calculate Money in Leetcode Bank - LeetCode

Can you solve this real interview question? Calculate Money in Leetcode Bank - Hercy wants to save money for his first car. He puts money in the Leetcode bank every day. He starts by putting in $1 on Monday, the first day. Every day from Tuesday to Sunday

leetcode.com

수학적으로 푸는 문제!

class Solution:
    def totalMoney(self, n: int) -> int:
        k = n //7
        f = 28
        l = 28 + (k-1) * 7
        asum = k * (f+l) // 2

        monday = 1 + k
        last_week = 0
        for day in range(n % 7):
            last_week += monday + day
        
        return asum + last_week
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