IMC SWE grad OA

经典老artifact题
Davy has buried pieces of his ancient artifacts underground. The artifacts are hidden in an area split into an NxN grid of square cells. The rows are numbered from 1 to N. The columns are labeled with consecutive English upper-case letters (A, B, C, etc.). Each cell is identified by a string composed of its row number

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游客，您好！
本帖隐藏的内容需要积分高于 188 才可浏览
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cribing respectively the top-left and bottom-right corner cells where pieces of an artifact is buried. The artifacts' locations are separated by a comma.


新人发帖，求加米鼓励， 谢谢！
当时找oa积分太低好多都看不到，分享给大家!

虽然我已经知道这题 但还是给你加个米