Problem Tags

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