✅ Code Explanation: The super digit of a number is found by repeatedly adding its digits until a single digit remains, but this can be calculated instantly using a mathematical shortcut. When a number is divided by 9, the remainder (num % 9) gives the same final digit as the repeated digit sum. For example, if num = 9875, adding digits gives 9 8 7 5 = 29, then 2 9 = 11, and finally 1 1 = 2; using the shortcut, 9875 % 9 = 2, which is the same result. If the remainder is 0, the super digit is 9 (f
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✅ Code Explanation: The super digit of a number is found by repe…
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