Expense Tracker Query

Imagine you're building a finance application that tracks daily expenses. You're provided with daily expenses over a month (30 days) and need to calculate total expenses for specific day ranges based on user queries. The input consists of the number of days (30), followed by their respective daily expenses, and then multiple queries specifying ranges. For example: Input: 30 30 35 40 25 30 20 10 50 60 70 55 50 45 40 35 30 25 20 15 10 5 0 10 5 15 20 25 30 35 10 15 3 0 5 10 15 5 29 Output: 150 270 600 The first query calculates total expenses from day 0 to day 5 (30 + 35 + 40 + 25 + 30 + 20 = 150), the second from day 10 to day 15 (55 + 50 + 45 + 40 + 35 + 30 = 270) and the third encompasses all days from 5 to 29.