2500 + 构造题

CF1344B Monopole Magnets

CF1344B Monopole Magnets | Legendgod’s Blog

CF1385E Directing Edges

CF1385E Directing Edges | Legendgod’s Blog

CF1416B Make Them Equal

CF1416B Make Them Equal | Legendgod’s Blog

GCJ2015 还原集合

GCJ2015 还原集合 | Legendgod’s Blog

CF1391D 505

CF1391D 505 | Legendgod’s Blog

CF1380D Berserk And Fireball

CF1380D Berserk And Fireball | Legendgod’s Blog

CF1375E Inversion SwapSort

CF1375E Inversion SwapSort | Legendgod’s Blog

CF449C Jzzhu and Apples

CF449C Jzzhu and Apples 题解 | Legendgod’s Blog

CF1559D2 Mocha and Diana (Hard Version)

CF1559D2 Mocha and Diana (Hard Version) | Legendgod’s Blog