题库
题号 状态 题目名称 标签 通过率
CF1276A As Simple as One and Two
CF1276B Two Fairs
CF1276C Beautiful Rectangle
CF1276D Tree Elimination
CF1276E Four Stones
CF1276F Asterisk Substrings
CF1277A Happy Birthday, Polycarp!
CF1277B Make Them Odd
CF1277D Let's Play the Words?
CF1278A Shuffle Hashing
CF1278B A and B
CF1278C Berry Jam
CF1278D Segment Tree
CF1278E Tests for problem D
CF1278F Cards
CF1279A New Year Garland
CF1279B Verse For Santa
CF1279C Stack of Presents
CF1279D Santa's Bot
CF1279E New Year Permutations