显示代码纯文本
#include<iostream>
#include<cstdio>
#include<algorithm>
using namespace std;
const int maxn=1000010;
const int INF=0x3f3f3f3f;
int q[maxn],cnt;
int a[maxn];
int D[maxn],X[maxn];
inline int Main(){
freopen("window.in","r",stdin);
freopen("window.out","w",stdout);
int n,k;
scanf("%d%d",&n,&k);
for(int i=1;i<=n;i++) scanf("%d",&a[i]);
int h=0,t=0;
a[0]=-INF;
for(int i=1;i<=n;i++) {
while(h<=t&&a[q[t]]<=a[i]) t--;
q[++t]=i;
while(i-q[h]>=k) h++;
if(i>=k) D[++cnt]=a[q[h]];
}
h=0;t=0;cnt=0;
a[0]=INF;
for(int i=1;i<=n;i++) {
while(h<=t&&a[q[t]]>=a[i]) t--;
q[++t]=i;
while(i-q[h]>=k) h++;
if(i>=k) X[++cnt]=a[q[h]];
}
for(int i=1;i<=cnt;i++) printf("%d",X[i]);
printf("\n");
for(int i=1;i<=cnt;i++) printf("%d",D[i]);
fclose(stdin);
fclose(stdout);
return 0;
}
int work=Main();
int main(){;}