goto_1600的博客

#include<bits/stdc++.h>using namespace std;const int N=500010;int pre[N];int ne[N];int a[N];int id[N];int c[N];int d[N];int main(){ int n,k; scanf("%d%d",&n,&k); for(int i=1;i<=n;i++) scanf("%d",&a[i]),id[a[i]]=i; long lon

不一定正确，先贴一下//#pragma GCC target("avx")//#pragma GCC optimize(2)//#pragma GCC optimize(3)//#pragma GCC optimize("Ofast")// created by myq#include<iostream>#include<cstdlib>#include<string>#include<cstring>#include<cstdio&

题目在这里’代码如下：#include<iostream>using namespace std;const int N=100010;int l[N],r[N],idx,e[N];void init (){ idx=2; r[0]=1; l[1]=0;}void dele(int k){ l[r[k]]=l[k]; r[l[...

原题点这里代码如下#include<iostream>using namespace std;const int N=100010;int ne[N],e[N],head,idx;void init(){ idx=0; head=-1;}void dele(int k){ ne[k]=ne[ne[k]];}void add_to_head...