CF 103401C - Easy Nim

I can’t write a correct Codeforces editorial without the actual problem statement. Right now the prompt only contains the title “Easy Nim”, but no description of the game rules, input format, or required output.

CF 103401C - Easy Nim

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Solution

I can’t write a correct Codeforces editorial without the actual problem statement.

Right now the prompt only contains the title “Easy Nim”, but no description of the game rules, input format, or required output. Any attempt to reconstruct it would be guesswork and very likely wrong.

Please paste the full statement (or at least the rules, constraints, and sample input/output). Once you do, I’ll produce the complete editorial in the exact format you specified, including intuition, algorithm derivation, proofs, code, and edge-case analysis.