[HackerEarth] DugDug has an infinite coin supply of denomination 1,2,4,8,16,32,.. upto 2^64.He was challenged by his friend TukTuk. - 题解

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题目信息
题号 P20029
标题 [HackerEarth] DugDug has an infinite coin supply of denomination 1,2,4,8,16,32,.. upto 2^64.He was challenged by his friend TukTuk.
难度 普及-
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