#include<bits/stdc++.h>
using namespace std;
template<class item>
inline item read() {
item res = 0;
bool negative = 0;
char ch = getchar();
while (!isdigit(ch)) negative |= ch == '-', ch = getchar();
while (isdigit(ch)) res = (res << 3) + (res << 1) + (ch ^ 48), ch = getchar();
return negative ? -res : res;
}
template<class item>
inline item read(item & t) {
t = read<item>();
return t;
}
#define max(a, b) (!((a) < (b)) ? (a) : (b))
#define min(a, b) ((a) < (b) ? (a) : (b))
template <typename T, typename... Args>
inline void read(T& t, Args&... args) {
read(t), read(args...);
}
struct{
int l, r;
int val, dat;
int cnt, size;
}a[300010];
int tot, root;
const int oo = (1 << 30);
int New(int val){
a[++tot].val = val;
a[tot].dat = rand();
a[tot].size = a[tot].cnt = 1;
return tot;
}
void update(int p){
a[p].size = a[a[p].l].size + a[a[p].r].size + a[p].cnt;
}
void build(){
root = New(-oo),a[1].r = New(oo);
update(root);
}
void zig(int &p){
int q = a[p].l;
a[p].l = a[q].r, a[q].r = p, p = q;
update(p),update(a[p].r);
}
void zag(int &p){
int q = a[p].r;
a[p].r = a[q].l, a[q].l = p, p = q;
update(p),update(a[p].l);
}
void insert(int &p,int val){
if(!p) {
p = New(val);
return;
}
if(val == a[p].val){
return;
}
if(val < a[p].val){
insert(a[p].l, val);
if(a[a[p].l].dat > a[p].dat) zig(p);
}
else{
insert(a[p].r, val);
if(a[a[p].r].dat > a[p].dat) zag(p);
}
update(p);
}
int getpre(int val){
int ans = 1, p = root;
while(p){
if(val == a[p].val){
if(a[p].l) {
p = a[p].l;
while(a[p].r) p = a[p].r;
ans = p;
}
break;
}
if(a[p].val < val && a[p].val > a[ans].val) ans = p;
p = val < a[p].val ? a[p].l : a[p].r;
}
return a[ans].val;
}
int getnext(int val){
int ans = 2, p = root;
while(p){
if(val == a[p].val){
if(a[p].r) {
p = a[p].r;
while(a[p].l) p = a[p].l;
ans = p;
}
break;
}
if(a[p].val > val && a[p].val < a[ans].val) ans = p;
p = val < a[p].val ? a[p].l : a[p].r;
}
return a[ans].val;
}
int getrankbyval(int p,int val){
if(!p) return 0;
if(val == a[p].val) return a[a[p].l].size + 1;
if(val < a[p].val) return getrankbyval(a[p].l, val);
return getrankbyval(a[p].r, val) + a[a[p].l].size + a[p].cnt;
}
int getvalbyrank(int p, int rank){
if(!p) return 0;
if(a[a[p].l].size >= rank) return getvalbyrank(a[p].l, rank);
if(a[a[p].l].size + a[p].cnt >= rank) return a[p].val;
return getvalbyrank(a[p].r, rank - a[a[p].l].size - a[p].cnt);
}
void remove(int &p,int val){
if(!p) return;
if(val == a[p].val){
if(a[p].cnt > 1){
--a[p].cnt, update(p);
return;
}
else{
if(a[p].l || a[p].r){
if(a[p].r == 0 || a[a[p].l].dat > a[a[p].r].dat)
zig(p), remove(a[p].r, val);
else
zag(p), remove(a[p].l, val);
update(p);
}
else p = 0;
return;
}
}
remove(val < a[p].val ? a[p].l : a[p].r, val);
update(p);
}
int n, m, b[200010], u[200010];
int main(){
build();
//freopen("data.out", "w", stdout);
read(n, m);
int j = 1, cnt = 1;
for (register int i = 1; i <= n; ++i) read(b[i]);
for (register int i = 1; i <= m; ++i) read(u[i]);
sort(u + 1, u + m + 1);
for (register int i = 1; i <= m; ++i) {
while (j <= u[i]) insert(root, b[j++]);
printf("%d\n", getvalbyrank(root, ++cnt));
}
}
模板都过了啊