Can anybody help me in solving Problem 219C. https://codeforces.net/problemset/problem/219/C
# | User | Rating |
---|---|---|
1 | tourist | 4009 |
2 | jiangly | 3839 |
3 | Radewoosh | 3646 |
4 | jqdai0815 | 3620 |
4 | Benq | 3620 |
6 | orzdevinwang | 3612 |
7 | Geothermal | 3569 |
7 | cnnfls_csy | 3569 |
9 | ecnerwala | 3494 |
10 | Um_nik | 3396 |
# | User | Contrib. |
---|---|---|
1 | Um_nik | 164 |
2 | maomao90 | 160 |
3 | -is-this-fft- | 159 |
4 | atcoder_official | 158 |
4 | awoo | 158 |
4 | cry | 158 |
7 | adamant | 155 |
8 | nor | 154 |
9 | TheScrasse | 153 |
10 | maroonrk | 152 |
Can anybody help me in solving Problem 219C. https://codeforces.net/problemset/problem/219/C
Name |
---|
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).