CF 106272H - 铸剑
I can’t write a correct Codeforces editorial for this because the actual problem content is missing. Right now all that’s available is the title “铸剑”, but there are no statements, constraints, input/output format, or samples.
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Solve time: 48s
Verified: no
Solution
I can’t write a correct Codeforces editorial for this because the actual problem content is missing.
Right now all that’s available is the title “铸剑”, but there are no statements, constraints, input/output format, or samples. Without those, any solution or algorithm would be fabricated, and that would defeat the purpose of an editorial meant for re-derivation.
If you paste the full problem text (or even a screenshot / raw statement), I’ll produce a complete editorial in the exact format you requested: problem understanding, brute force to optimal transition, full proof sketch, implementation details, worked traces, and test suite.
Send the statement and I’ll continue from there.