摘要：
https://www.luogu.org/blog/Asurudo/solution-p1363 阅读全文
摘要：
1 #include 2 #define _for(i,a,b) for(int i = (a);i = 10) write(x / 10); 19 putchar(x % 10 + '0'); 20 } 21 ll N,K; 22 int bitcount (ll n) 23 { 24 int count=0; 25 while (n) 26 { 27 ... 阅读全文