c了2道黑题、1道紫题、2道绿题。

证据：

https://www.luogu.com.cn/record/193910320 https://www.luogu.com.cn/record/195989653 https://www.luogu.com.cn/record/195014133 https://www.luogu.com.cn/record/193909941 https://www.luogu.com.cn/record/193909850

受害题解：

https://www.luogu.com.cn/article/pqud2ca2 https://www.luogu.com.cn/article/b4uz1ftz https://www.luogu.com.cn/article/2sf26vq8 https://www.luogu.com.cn/article/hpa3yvy7 https://www.luogu.com.cn/article/emv7tflh