Algorithm practices in all popular online judge.
Some of the solutions are available on https://BigBang019.github.io
/contest/Codeforces/#538/F.cpp
/contest/Codeforces/Educational_Round#68/E.cpp 枚举左右边界+单调队列+BIT维护y值***
/contest/cometoj/59/F.cpp 二维空间方阵包含最多的点——线段树统计贡献***
/contest/2019 Multi-University Training Contest/hdu02/1012.cpp 线段树统计贡献
/contest/2019 Multi-University Training Contest/nowcoder04/C.cpp 单调栈预处理左右边界线段树求最大前缀和
/contest/Codeforces/#576/D.cpp
/contest/2019 Multi-University Training Contest/hdu06/1005.cpp 线段树求最大子区间和——进阶
/contest/2019 Multi-University Training Contest/nowcoder07/C.cpp
/contest/2019 Multi-University Training Contest/nowcoder07/E.cpp 区间添加+1e9范围+在线求中位数：离散化+权值线段树。第一次写头都WA飞了。二分+BIT在区间修改的题慎用
/contest/2019 Multi-University Training Contest/nowcoder08/E.cpp 离散化区间线段树，又难想又难写***
/contest/2019 Multi-University Training Contest/nowcoder08/I.cpp 其实这个题重点在于思维+启发式合并，只是需要用线段树维护***
/contest/Codeforces/#578/D.cpp 统计贡献，BIT维护
/contest/2019 Multi-University Training Contest/hdu09/6681.cpp 块的个数=交点个数+1
/contest/hdu_869/6703.cpp 权值线段树记录在pos中的位置，修改+查询第一个>=k的权并且出现位置大于pos
/contest/2019 Multi-University Training Contest/hdu03/6609.cpp
/contest/2019 Multi-University Training Contest/nowcoder07/F.cpp 差分思想统计最终贡献***
/contest/2019 Multi-University Training Contest/nowcoder08/D.cpp 8个三维树状数组维护3维最近点对
/contest/jisuanke/contest/3004/A.cpp 扫描线***
/contest/Codeforces/[Gym]102307/J.cpp 线段树+维护下溢
/contest/jisuanke/contest/2290/J.cpp 树上主席树***
/contest/2019 Multi-University Training Contest/hdu02/1011.cpp 求给定区间能组成的最大三角形
/contest/2019 Multi-University Training Contest/hdu04/1008.cpp 求给定区间距离p第k近的点的距离——二分答案主席树统计贡献
/contest/2019 Multi-University Training Contest/nowcoder09/H.cpp 不二分更好..但是不好写^_^
/contest/2019 Multi-University Training Contest/hdu01/1002.cpp 向末尾加数或者求给定区间的最大异或和
/contest/2019 Multi-University Training Contest/nowcoder04/B.cpp 线段树维护线性基合并求交***
/contest/2019 Multi-University Training Contest/nowcoder02/H.cpp 单调栈求柱形次大图矩形
/contest/2019 Multi-University Training Contest/nowcoder08/A.cpp 0/1矩阵求不被包含的最大矩形数目，思维过后用单调栈维护一个东西
/contest/2019 Multi-University Training Contest/hdu10/6701.cpp 分治思想处理一类问题，单调栈预处理
/contest/2019 Multi-University Training Contest/nowcoder03/F.cpp 有ST表过的方法，lanran无敌
/contest/2019 Multi-University Training Contest/nowcoder03/F.cpp
/contest/2019 Multi-University Training Contest/nowcoder08/I.cpp 多棵树转化一棵树以后，重链剖分启发式合并***
/contest/hdu/869/6704.cpp 后缀树上重链剖分式启发式合并***
/contest/2019 Multi-University Training Contest/nowcoder06/E.cpp 自补图构造
/contest/2019 Multi-University Training Contest/nowcoder05/F.cpp Dinic求最大匹配后在残余网络上寻找最大独立集***
/contest/2019 Multi-University Training Contest/nowcoder03/A.cpp 异或运算加密neighbor+分块均摊暴力***
/contest/2019 Multi-University Training Contest/nowcoder02/B.cpp
/contest/2019 Multi-University Training Contest/nowcoder05/B.cpp 十进制倍增+矩阵快速幂***
/contest/2019 Multi-University Training Contest/nowcoder05/C.cpp wlsnb
/contest/2019 Multi-University Training Contest/nowcoder07/K.cpp
/contest/hdu/869/6706.cpp
/contest/2019 Multi-University Training Contest/nowcoder08/J.cpp
/contest/2019 Multi-University Training Contest/nowcoder05/E.cpp 最大独立集
/contest/2019 Multi-University Training Contest/hdu09/6686.cpp 结论+直径问题
/contest/2019 Multi-University Training Contest/nowcoder05/G.cpp
/contest/2019 Multi-University Training Contest/hdu05/1002.cpp 贪心开路
/contest/2019 Multi-University Training Contest/hdu09/6687.cpp 贪心开路
/contest/2019 Multi-University Training Contest/hdu05/1006.cpp
/contest/2019 Multi-University Training Contest/nowcoder10/C.cpp
/contest/2019 Multi-University Training Contest/nowcoder06/C.cpp
/contest/2019 Multi-University Training Contest/hdu02/6599.cpp
/contest/jisuanke/contest/3005/G.cpp
/contest/hdu_869/6704.cpp 后缀树上重链剖分式启发式合并***
/contest/2019 Multi-University Training Contest/hdu01/6583.cpp SAM优化dp
/contest/2019 Multi-University Training Contest/nowcoder03/G.cpp 分治统计贡献***
/contest/2019 Multi-University Training Contest/hdu10/6701.cpp 分治统计贡献***