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TR-MO-R1 2015 Problem 8

    ai∈{0,1}a_i \in \{0, 1\} olmak üzere, kaç (a1,a2,…,a11)(a_1, a_2, \dots, a_{11}) onbirlisi a1+a2+a3+a4+a5≥a6+a7+a8+a9+a10+a11a_1 + a_2 + a_3 + a_4 + a_5 \geq a_6 + a_7 + a_8 + a_9 + a_{10} + a_{11} koşulunu sağlar?

    a) 682682 b) 758758 c) 864864 d) 956956 e) 10241024

    Official text Turkish Mathematical Olympiad, first round 2015 official paper, page 3. Quoted with source.

    A model read this text from the scan of the paper by OCR, with vision/claude@2.1.318 (claude-opus-5-5). No person has checked it against the paper yet.

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