DP好题。。。开始的时候以为是线段树。。结果怎么都想不出来。。 include<iostream> include<queue> include<stack> include<map> include<set> include<bitset> include<cstdio> include<algorithm> include<cstring> include<climits> include<cstdlib> include<cmath> in...

好题。。。附上CF的官方题解。。。 include<iostream> include<queue> include<stack> include<map> include<set> include<bitset> include<cstdio> include<algorithm> include<cstring> include<climits> include<cstdlib> include<cmath> include<time....