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ID 题目 显示标签 隐藏标签 AC / 尝试 难度
2664 P2664  [Spoj1557] Can you answer these queries II 0 / 0 (无)
2670 P2670  [Spoj1557] Can you answer these queries II 0 / 0 (无)
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手气不错

根据当前过滤条件随机选择一道题