TNP CHALLENGE 502

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Due to the lockdown imposed as a result of the pandemic, Ramu is forced to stay in his home. For passing time he started playing with numbers.Interestingly, he found out a new pattern. He takes a 4-digit number (with at most 3-digits repeating), writes the largest and smallest number that can be obtained by rearranging the digits of that 4-digit number, finds the difference between the largest and

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solution.cppC++17

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