amr0's blog

By amr0, history, 6 years ago, In English

Hello, I am not sure how to solve this problem on graphs from a previous contest. Any help is appreciated.

https://codeforces.me/predownloaded/49/4e/494ef6d6376342a0bdbd9e42cb0f57389fe21d3b.png /predownloaded/49/4e/494ef6d6376342a0bdbd9e42cb0f57389fe21d3b.png

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