${\color{Cyan}{talk\;is\;cheap\;\;show\;me\;the\;code} }$

摘要： 1 #include 2 #define up(i,l,r) for(register int i = (l);i = (r); i--) 4 #define ll long long 5 using namespace std; 6 7 const int N = 21000000; 8 int len,ans,r[N i) r[i] = min(r[id*2-i],mx-i... 阅读全文