Problem Tags

math
15
dp
14
2021
11
数学
9
算法基础
9
greedy
9
brute force
8
O2优化
7
CSP-S
7
data structures
7
combinatorics
7
2022
6
图论
6
dfs and similar
6
trees
6
字符串
5
CoE
5
graphs
5
implementation
5
constructive algorithms
5