Can anybody help me in solving Problem 219C. https://codeforces.com/problemset/problem/219/C
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Время на сервере: 03.06.2024 18:54:23 (k3).
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See tips here:
What is the solution for the string "AAAAAAA"?
How would you expand the solution from tip 1 to other strings?
See the full solution here:
First, divide the sequence of characters in segments of the same color, for example "AABCA" would be divided in $$$4$$$ segments: "AA", "B", "C" and "A". Notice that for one block, you should change alternating letters to it. For example you transform "AAAAA" in "ABABA". (It can be prooven that it works).