[HackerEarth] My dear friend Durgesh loves math very much. He likes to challenge himself with different maths puzzle. Unlike many of us he has maths problem coming in his dreams! One night he dreamed - 题解

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题号 P15890
标题 [HackerEarth] My dear friend Durgesh loves math very much. He likes to challenge himself with different maths puzzle. Unlike many of us he has maths problem coming in his dreams! One night he dreamed
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