Codeforces - 1105F Helping Hiasat(最大独立集)2021-01-18 题解 CodeForces-1364D Ehab's last Corollary (dfs树)2020-06-16 题解 CodeForces-1243D 0 - 1 MST2020-04-29 题解 CodeForces-1217D Coloring Edges (有向图判环)2020-04-22 题解 CodeForces-1343E Weights Distributing2020-04-22 题解 CodeForces-1325E Ehab's REAL Number Theory Problem(最小环)2020-03-15 题解 CodeForces1294F - Three Paths on a Tree(树的直径)2020-02-28 题解 CodeForces1228D - Complete Tripartite2020-02-28 题解