Problem Tags

*1500
18
greedy
16
dp
15
implementation
13
动态规划
9
brute force
7
constructive algorithms
7
data structures
6
*1600
5
binary search
5
区间 dp
4
背包
4
bitmasks
4
字符串
3
树形结构
3
USACO
3
graphs
3
*1900
3
*1700
3
strings
3