ABC080C
https://gyazo.com/24f7bc06a85f410b32b34fc2ddae9048
Thoughts.
If you do it naively, it's a 2^10 search space, about 10^9, so it's a bit of a stretch.
PS: Were you sleepwalking? I don't understand.
I wonder if it's DP.
Official Explanation
2^10, so about 10^3, with room for a full search.
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