第一次写单调队列，WA+RE+TLE+AC

#include<bits/stdc++.h>
using namespace std;
deque<int>q;
int n,w;
int a[100005];
int main(){
	scanf("%d%d",&n,&w);
	for(int i=1;i<=n;i++){
		scanf("%d",&a[i]);
	}
	int t=1;
	for(int i=1;i<=n;i++){
		while(!q.empty()&&q.back()>=a[i])q.pop_back();
		q.push_back(a[i]);
		if(i-t>=w&&a[t]==q.front()){
			t++;
			q.pop_front();
		}
		if(i-t>=w&&a[t]!=q.front())t++;
		if(i>=w)printf("%d ",q.front());
	}
	q.clear();
	t=1;
	printf("\n");
	for(int i=1;i<=n;i++){
		while(!q.empty()&&q.back()<=a[i])q.pop_back();
		q.push_back(a[i]);
		if(i-t>=w&&a[t]==q.front()){
			t++;
			q.pop_front();
		}
		if(i-t>=w&&a[t]!=q.front())t++;
		if(i>=w)printf("%d ",q.front());
	}
    return 0;
}