1716. Calculate Money in Leetcode Bank

# 1716. Calculate Money in Leetcode Bank#

## 题目 #

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, he will put in `\$1` more than the day before. On every subsequent Monday, he will put in `\$1` more than the previous Monday.

Given `n`, return the total amount of money he will have in the Leetcode bank at the end of the `nth` day.

Example 1:

``````Input: n = 4
Output: 10
Explanation: After the 4th day, the total is 1 + 2 + 3 + 4 = 10.
``````

Example 2:

``````Input: n = 10
Output: 37
Explanation: After the 10th day, the total is (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4) = 37. Notice that on the 2nd Monday, Hercy only puts in \$2.
``````

Example 3:

``````Input: n = 20
Output: 96
Explanation: After the 20th day, the total is (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4 + 5 + 6 + 7 + 8) + (3 + 4 + 5 + 6 + 7 + 8) = 96.
``````

Constraints:

• `1 <= n <= 1000`

## 题目大意 #

Hercy 想要为购买第一辆车存钱。他 每天 都往力扣银行里存钱。最开始，他在周一的时候存入 1 块钱。从周二到周日，他每天都比前一天多存入 1 块钱。在接下来每一个周一，他都会比 前一个周一 多存入 1 块钱。给你 n ，请你返回在第 n 天结束的时候他在力扣银行总共存了多少块钱。

## 解题思路 #

• 简单题。按照题意写 2 层循环即可。

## 代码 #

``````package leetcode

func totalMoney(n int) int {
res := 0
for tmp, count := 1, 7; n > 0; tmp, count = tmp+1, 7 {
for m := tmp; n > 0 && count > 0; m++ {
res += m
n--
count--
}
}
return res
}
``````

Nov 25, 2022