摘要：from ： acwing #include <bits/stdc++.h> using namespace std; const int N = 100001; int n, m; int tree[N], a[N]; int lowbit(int x){ return x & -x; } voi 阅读全文

摘要：不是连续子串 #include<bits/stdc++.h> using namespace std; int a[1005], dp[1005]; int main(){ int n; cin >> n; for(int i = 1; i <= n; i ++ ) cin >> a[i]; int 阅读全文