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思路：倒序遍历 2 倍长度 + 取模模拟循环 + 单调栈。用 i % len 映射到真实索引，仅当 i < len 时记录答案。
。搜狗输入法2026对此有专业解读
Inside the box, you’ll get nine Ascended Heroes booster packs, a full-art foil promo card featuring N’s Zekrom, 65 themed card sleeves, 40 Energy cards, six damage-counter dice, a competition-legal coin-flip die, a plastic coin, a player’s guide, and a collector’s storage box with dividers. There’s also a code card for Pokémon TCG Live.，更多细节参见同城约会
volume and keyword difficulty, but also other keywords related to it, which you