unordered map in on average O(1)O(1) with custom hash and vector operations is obviously constant O(1)O(1) , so it's little faster than unordered map obviously , your vector solution almost TLEed too(almost 1800 ms),unordered map here didn't act much slower , it's good enough , ...
One thing there hasn't been much of online lately is earnest content that uses Mickey Mouse as a character in an original story. It almost feels absurd to tell a Mickey Mouse story, because he's more associated with logos and toys than with stories at this point. And that's a shame ...
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