UVALive 8512 XOR

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• [X] codeforces 1100F of Ivan and Burgers simple XOR maximum interrogation zone
• [X] 6579 HDU Operation plurality of operations insertion end of the data, as well as by force
• [] BZOJ 4184 Shallot this title more than the operating insertions and deletions. Actually measure what the local authority title ...... forget.
• [] UVALive 8514 XOR 2017ICPC Xi'an a question, almost all operations

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