Magical Coins

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Mr.X has 1 magical coin initially with him. With each passing day, the number of coins gets double the value which was on previous day. Now Mr.X is tired and he needs some sleep. When he wakes up after N days, he wants to know how many magic coins are there with him now. Since he is a little weak in maths, therefore he needs your help in counting the number of magic coins. This number can be very

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solution.cppC++17

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