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Dsa Prefix Sum Easy

Product Sales Growth

You are analyzing the growth of product sales over a series of months. Each month's sales figures are recorded as integers. Write a program that calculates the total sales over a specific range of months. Input format: - The first line contains an integer M (1 ≤ M ≤ 100,000), the number of months. - The second line contains M integers, representing the sales figures for each month. - The third line contains two integers, fromMonth and toMonth (0 ≤ fromMonth ≤ toMonth < M), indicating the range of months. Output format: - Output a single integer: the total sales from fromMonth to toMonth (inclusive). Example: Input: 6 150 200 50 300 100 250 1 4 Output: 950

Key concepts

prefix_sumrange_query

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