Problem Tags

dp
15
math
15
2021
12
算法基础
9
数学
9
greedy
9
brute force
8
2022
7
CSP-S
7
O2优化
7
combinatorics
7
data structures
7
图论
6
CoE
6
dfs and similar
6
trees
6
字符串
5
graphs
5
constructive algorithms
5
implementation
5