{ "data": { "question": { "questionId": "1817", "questionFrontendId": "1716", "boundTopicId": null, "title": "Calculate Money in Leetcode Bank", "titleSlug": "calculate-money-in-leetcode-bank", "content": "

Hercy wants to save money for his first car. He puts money in the Leetcode bank every day.

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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.

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

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Example 1:

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\nInput: n = 4\nOutput: 10\nExplanation: After the 4th day, the total is 1 + 2 + 3 + 4 = 10.\n
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Example 2:

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\nInput: n = 10\nOutput: 37\nExplanation: 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.\n
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Example 3:

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\nInput: n = 20\nOutput: 96\nExplanation: 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.\n
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Constraints:

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