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2269. Find the K-Beauty of a Number The k-beauty of an integer num is defined as the number of substrings of num when it is read as a string that meet the following conditions: It has a length of k. It is a divisor of num.Given integers num and k, return the k-beauty of num. Note: Leading zeros are allowed. 0 is not a divisor of any value. A substring is a contiguous sequence of characters in a string. ...