11-12

Easy Round 刷题

05-20

「CF1521E」Nastia and a Beautiful Matrix

05-19

「CF1521D」Nastia Plays with a Tree

05-18

「CF1521C」Nastia and a Hidden Permutation

03-25

「CF1458E」Nim Shortcuts

03-25

「CF1458D」Flip and Reverse

03-25

「CF1411G」No Game No Life

03-23

「CF1479D」Odd Mineral Resource

02-23

「CF506C」Mr. Kitayuta vs. Bamboos

02-22

「CF516D」Drazil and Morning Exercise