「CF1442F」Differentiating Games

01-21

「CF1408H」Rainbow Triples

01-12

「CF493E」Vasya and Polynomial

11-24

「CF1442E」Black, White and Grey Tree

11-07

「CF1423M」Milutin's Plums

10-08

「CF1396E」Distance Matching

09-28

「CF1407E」Egor in the Republic of Dagestan

09-27

「CF1396D」Rainbow Rectangles

09-27

「CF1406E」Deleting Numbers

09-23

「CF1404D」Game of Pairs

09-23