摘要: #include<bits/stdc++.h> using namespace std; const int N = 3e5 + 10; int main() { int n; cin >> n; vector<int>v(n + 1),pre(N + 1); map<int, int>mp; fo 阅读全文
posted @ 2024-01-19 01:39 O_JF? 阅读(10) 评论(0) 推荐(0) 编辑