leetcode

0 class Solution {

1 public:

2 int totalMoney(int n) {

3 const int whole = n / 7, rest = n % 7;

4 int res = whole * (7 * whole + 49) / 2;

5

6 for (int i = 1; i <= rest; i++) {

7 res += whole + i;

8 }

9

10 return res;

11 }

12 };