摘要:
https://ac.nowcoder.com/acm/contest/887/E 树状数组做法(代码有注释) #include<bits/stdc++.h> using namespace std; typedef long long ll; const int M=4e5+5; int x[M] 阅读全文
摘要:
https://ac.nowcoder.com/acm/contest/889/D(超大背包) #include<bits/stdc++.h> using namespace std; //__ #define pb push_back typedef long long ll; typedef u 阅读全文