ID 题目 显示标签 隐藏标签 AC / 尝试 难度
6741 P227B   Effective Approach 0 / 0 (无)
6680 P242A   Heads or Tails 0 / 0 (无)
6679 P242B   Big Segment 0 / 0 (无)
6667 P245B   Internet Address 0 / 0 (无)
6638 P252A   Little Xor 0 / 0 (无)
6636 P253A   Boys and Girls 0 / 0 (无)
6619 P257A   Sockets 0 / 0 (无)
6614 P258A   Little Elephant and Bits 0 / 0 (无)
6608 P259B   Little Elephant and Magic Square 0 / 0 (无)
6565 P270A   Fancy Fence 0 / 0 (无)
6508 P285A   Slightly Decreasing Permutations 0 / 0 (无)
6498 P287A   IQ Test 0 / 0 (无)
6491 P289A   Polo the Penguin and Segments 0 / 0 (无)
6478 P292A   SMSC 0 / 0 (无)
6458 P296A   Yaroslav and Permutations 0 / 0 (无)
6447 P300A   Array 0 / 0 (无)
6409 P312A   Whose sentence is it? 0 / 0 (无)
6406 P313B   Ilya and Queries 0 / 0 (无)
6395 P316A1   Special Task 0 / 0 (无)
6330 P331C1   The Great Julya Calendar 0 / 0 (无)

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