简单的题解
2020-04-28
CodeForces-1257D Monster Killing Problem
CodeForces-1253E Antenna Coverage
CodeForces-1253D Harmonious Graph
pb_ds 一个强大的黑科技
CodeForces-1262D Optimal Subsequences
CodeForces-1272E Nearest Opposite
CodeForces-1341E Unexpected Guest (01BFS)
CodeForces-1341D Nastya and Scoreboard
牛客 - 挑战赛39B 密码系统
牛客 - 练习赛62C 牛牛染颜色
牛客 - 挑战赛39C 牛牛的等差数列
2019CCPC - Final K.Russian Dolls on the Tree
洛谷 - P2633 Count on a tree
CodeForces-1281E Jeremy Bearimy
CodeForces-1217D Coloring Edges (有向图判环)
CodeForces-1221D Make The Fence Great
CodeForces-1343E Weights Distributing
洛谷 - P1772 [ZJOI2006]物流运输