T1出了个大阴间题（repair）#include<bits/stdc++.h>usingnamespacestd;#definelllonglong#definelb(x)((x)&(-x))constexprintN=(1<<19)+1,M=1e9+7;intn,k,a[20],f[N],g[N][2],h[N][2],sb,sk;intmain(){ ios::sync_with_stdi