03 2025 档案

坐标与图形
摘要:https://codeforces.com/contest/2072/problem/E #include<bits/stdc++.h> using namespace std; #define endl '\n' using ll = long long; using pii = pair<in 阅读全文
posted @ 2025-03-03 21:17 laileou 阅读(2) 评论(0) 推荐(0) 编辑
区间和(新构造的区间和)
摘要:https://www.luogu.com.cn/problem/T576143?contestId=233561 #include<bits/stdc++.h> using namespace std; #define endl '\n' using ll = long long; using p 阅读全文
posted @ 2025-03-02 20:56 laileou 阅读(2) 评论(0) 推荐(0) 编辑
(对于所有的j)异或
摘要:https://www.luogu.com.cn/problem/T575379?contestId=233561 #include<bits/stdc++.h> using namespace std; #define endl '\n' using ll = long long; using p 阅读全文
posted @ 2025-03-02 18:54 laileou 阅读(1) 评论(0) 推荐(0) 编辑