2719. Count of Integers
You are given two numeric strings num1 and num2 and two integers max_sum and min_sum. We denote an integer x to be good if: - num1 <= x <= num2 - min_sum <= digit_sum(x) <= max_sum. Return the number of good integers. Since the answer may be large, return it modulo 109 + 7. Note that digit_sum(x) denotes the sum of the digits of x. Example 1: Input: num1 = "1", num2 = "12", min_sum = 1, ma
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solution.cppC++17
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