本文深入探讨了在Codeforces平台上解决编程挑战时的代码优化策略，包括时间复杂度、空间复杂度的降低以及如何有效利用数据结构和算法提高效率。
Description
There are n stones on the table in a row, each of them can be red, green or blue. Count the minimum number of stones to take from the table so that any two neighboring stones had different colors. Stones in a row are considered neighboring if there are no other stones between them.
Input
The first line contains integer n (1
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转载于:https://blog.51cto.com/huahua520amy/1373655
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