Chef loves Charity

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Chef loves helping the poor and is very sad seeing the difference between rich and poor rising day by day in Chefland. One day he decides to steal exactly $1$ rupee coin every day from the richest person and give it to the poorest person. Chef has only $K$ days left. If any day all people in Chefland have the same amount of money he will not take or give any amount of coins. Find the difference

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solution.cppC++17

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