题目标签

greedy
8
constructive algorithms
6
dp
4
implementation
4
math
4
stl
3
sortings
3
brute force
2
dfs and similar
2
strings
2
*800
2
模拟
1
graphs
1
shortest paths
1
*1500
1
combinatorics
1
number theory
1
bitmasks
1
*1100
1
*900
1