ID 题目 显示标签 隐藏标签 AC / 尝试 难度
840 P1818A   Politics 0 / 0 3
837 P1819B   The Butcher 0 / 0 6
836 P1819C   The Fox and the Complete Tree Traversal 0 / 0 9
832 P1820A   Yura's New Name 0 / 0 3
828 P1821C   Tear It Apart 0 / 0 4
824 P1822A   TubeTube Feed 0 / 0 3
810 P1824A   LuoTianyi and the Show 0 / 0 4
802 P1826A   Trust Nobody 0 / 0 4
798 P1826E   Walk the Runway 0 / 0 9
787 P1829A   Love Story 0 / 0 3
786 P1829B   Blank Space 0 / 0 3
785 P1829C   Mr 0 / 0 3
784 P1829D   Gold Rush 0 / 0 3
783 P1829E   The Lakes 0 / 0 3
781 P1829G   Hits Different 0 / 0 5
769 P1832C   Contrast Value 0 / 0 4
768 P1832D1   Red-Blue Operations (Easy Version) 0 / 0 7
767 P1832D2   Red-Blue Operations (Hard Version) 0 / 0 9
764 P1833A   Musical Puzzle 0 / 0 3
759 P1833F   Ira and Flamenco 0 / 0 5
758 P1833G   Ksyusha and Chinchilla 0 / 0 6
754 P1834D   Survey in Class 0 / 0 6
753 P1834E   MEX of LCM 0 / 0 8
751 P1835A   k-th equality 0 / 0 5
746 P1835F   Good Graph 0 / 0 10
745 P1836A   Destroyer 0 / 0 3
738 P1837F   Editorial for Two 0 / 0 9
731 P1839A   The Good Array 0 / 0 3
726 P1840A   Cipher Shifer 0 / 0 3
722 P1840E   Character Blocking 0 / 0 5
717 P1841B   Keep it Beautiful 0 / 0 3
694 P1844C   Particles 0 / 0 4
689 P1844G   Tree Weights 0 / 0 10
687 P1845A   Forbidden Integer 0 / 0 3
686 P1845B   Come Together 0 / 0 3
683 P1845E   Boxes and Balls 0 / 0 9
681 P1846A   Rudolph and Cut the Rope 0 / 0 3
680 P1846B   Rudolph and Tic-Tac-Toe 0 / 0 3
677 P1846E1   Rudolf and Snowflakes (simple version) 0 / 0 4
676 P1846E2   Rudolf and Snowflakes (hard version) 0 / 0 6
675 P1846F   Rudolph and Mimic 0 / 0 6
670 P1847D   Professor Higashikata 0 / 0 6
669 P1847E   Triangle Platinum? 0 / 0 10
666 P1848B   Vika and the Bridge 0 / 0 4
663 P1848E   Vika and Stone Skipping 0 / 0 10
661 P1849A   Morning Sandwich 0 / 0 3
655 P1850A   To My Critics 0 / 0 3
654 P1850B   Ten Words of Wisdom 0 / 0 3
653 P1850C   Word on the Paper 0 / 0 3
652 P1850D   Balanced Round 0 / 0 3
651 P1850E   Cardboard for Pictures 0 / 0 3
650 P1850F   We Were Both Children 0 / 0 4
649 P1850G   The Morning Star 0 / 0 5
648 P1850H   The Third Letter 0 / 0 5
644 P1851D   Prefix Permutation Sums 0 / 0 4
641 P1851G   Vlad and the Mountains 0 / 0 7
623 P1856A   Tales of a Sort 0 / 0 3
622 P1856B   Good Arrays 0 / 0 3
618 P1856E2   PermuTree (hard version) 0 / 0 10
616 P1857B   Maximum Rounding 0 / 0 3
593 P1860F   Evaluate RBS 0 / 0 10
590 P1861C   Queries for the Array 0 / 0 5
588 P1861E   Non-Intersecting Subpermutations 0 / 0 8
586 P1862A   Gift Carpet 0 / 0 3
584 P1862C   Flower City Fence 0 / 0 3
579 P1863A   Channel 0 / 0 3
577 P1863C   MEX Repetition 0 / 0 3
570 P1864A   Increasing and Decreasing 0 / 0 3
565 P1864F   Exotic Queries 0 / 0 8
564 P1864G   Magic Square 0 / 0 10
551 P1866K   Keen Tree Calculation 0 / 0 9
545 P1867D   Cyclic Operations 0 / 0 6
541 P1868A   Fill in the Matrix 0 / 0 4
540 P1868B1   Candy Party (Easy Version) 0 / 0 5
539 P1868B2   Candy Party (Hard Version) 0 / 0 7
538 P1868C   Travel Plan 0 / 0 9
537 P1868D   Flower-like Pseudotree 0 / 0 10
535 P1868F   LIS? 0 / 0 10
530 P1870C   Colorful Table 0 / 0 4
529 P1870D   Prefix Purchase 0 / 0 6
523 P1872B   The Corridor or There and Back Again 0 / 0 3
519 P1872F   Selling a Menagerie 0 / 0 6
517 P1873A   Short Sort 0 / 0 3
515 P1873C   Target Practice 0 / 0 3
514 P1873D   1D Eraser 0 / 0 3
509 P1874A   Jellyfish and Game 0 / 0 4
484 P1878G   wxhtzdy ORO Tree 0 / 0 8
479 P1879E   Interactive Game with Coloring 0 / 0 9
475 P1881C   Perfect Square 0 / 0 4
452 P1884E   Hard Design 0 / 0 10
448 P1886C   Decreasing String 0 / 0 5
439 P1889A   Qingshan Loves Strings 2 0 / 0 4
435 P1889D   Game of Stacks 0 / 0 10
431 P1890B   Qingshan Loves Strings 0 / 0 3
426 P1891E   Brukhovich and Exams 0 / 0 9
424 P1893A   Anonymous Informant 0 / 0 4
422 P1893C   Freedom of Choice 0 / 0 7
419 P1894A   Secret Sport 0 / 0 3
415 P1895C   Torn Lucky Ticket 0 / 0 4
405 P1896F   Bracket Xoring 0 / 0 10

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