Labyrinth
Curiosity Has No Limits
Cram Time
Minimum path
Dwarves, Hats and Extrasensory Abilities
Colored Rooks
Vasya and Robot
Berland Fair
Array Without Local Maximums
图论(带权并查集,网络流)
数论反演
字符串manacher+kmp(不看板子搓出来)
数据结构(树状数组)
STL的所有函数(博客)