ID 题目 显示标签 隐藏标签 AC / 尝试 难度
1991 P1227E  Arson In Berland Forest 0 / 0 (无)
1984 P1228D  Complete Tripartite 0 / 0 (无)
1965 P1236F  Alice and the Cactus 0 / 0 (无)
1950 P1238F  The Maximum Subtree 0 / 0 (无)
1945 P1239D  Catowice City 0 / 0 (无)
1943 P1239F  Swiper, no swiping! 0 / 0 (无)
1942 P1240F  Football 0 / 0 (无)
1940 P1242B  0-1 MST 0 / 0 (无)
1939 P1242C  Sum Balance 0 / 0 (无)
1937 P1242E  Planar Perimeter 0 / 0 (无)
1930 P1244D  Paint the Tree 0 / 0 (无)
1923 P1245D  Shichikuji and Power Grid 0 / 0 (无)
1903 P1250E  The Coronation 0 / 0 (无)
1897 P1250K  Projectors 0 / 0 (无)
1894 P1250N  Wires 0 / 0 (无)
1875 P1252L  Road Construction 0 / 0 (无)
1871 P1253D  Harmonious Graph 0 / 0 (无)
1869 P1253F  Cheap Robot 0 / 0 (无)
1861 P1255B  Fridge Lockers 0 / 0 (无)
1836 P1263D  Secret Passwords 0 / 0 (无)
1834 P1263F  Economic Difficulties 0 / 0 (无)
1820 P1266D  Decreasing Debts 0 / 0 (无)
1818 P1266F  Almost Same Distance 0 / 0 (无)
1816 P1266H  Red-Blue Graph 0 / 0 (无)
1800 P1268D  Invertation in Tournament 0 / 0 (无)
1790 P1270G  Subset with Zero Sum 0 / 0 (无)
1777 P1272E  Nearest Opposite Parity 0 / 0 (无)
1766 P1276B  Two Fairs 0 / 0 (无)
1755 P1278D  Segment Tree 0 / 0 (无)
1744 P1280C  Jeremy Bearimy 0 / 0 (无)
1733 P1282E  The Cake Is a Lie 0 / 0 (无)
1729 P1283D  Christmas Trees 0 / 0 (无)
1721 P1284F  New Year and Social Network 0 / 0 (无)
1720 P1284G  Seollal 0 / 0 (无)
1715 P1285E  Delete a Segment 0 / 0 (无)
1712 P1286B  Numbers on Tree 0 / 0 (无)
1696 P1290C  Prefix Enlightenment 0 / 0 (无)
1695 P1290D  Coffee Varieties (hard version) 0 / 0 (无)
1690 P1291F  Coffee Varieties (easy version) 0 / 0 (无)
1686 P1292D  Chaotic V. 0 / 0 (无)
1665 P1296E1  String Coloring (easy version) 0 / 0 (无)
1650 P1299D  Around the World 0 / 0 (无)
1643 P1301D  Time to Run 0 / 0 (无)
1641 P1301F  Super Jaber 0 / 0 (无)
1620 P1304D  Shortest and Longest LIS 0 / 0 (无)
1610 P1305G  Kuroni and Antihype 0 / 0 (无)
1605 P1307D  Cow and Fields 0 / 0 (无)
1602 P1307G  Cow and Exercise 0 / 0 (无)
1598 P1310D  Tourism 0 / 0 (无)
1570 P1316D  Nash Matrix 0 / 0 (无)

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