采蘑菇的小西佬:
博客地址:https://www.cnblogs.com/Mrleon/
采蘑菇的小西佬:
博客地址:https://www.cnblogs.com/Mrleon/
codeforces 789 D Weird journey
codeforces 768 E 变形NIM博弈/手写sg函数
CodeForces - 617E XOR and Favorite Number (莫队+前缀异或和)
Codeforces-964D Destruction of a Tree(贪心)
CodeForces - 958 F2 Lightsabers (medium) . (尺取法)
Pair Of Lines Codeforces 961D (随机)
BZOJ 1012 [JSOI2008]最大数maxnumber
BZOJ 1015 [JSOI2008]星球大战starwar(逆序并查集)