显示代码纯文本
#include<bits/stdc++.h>
using namespace std;
int n,t,a[5000006],next[5000006],b[5000006];
int main()
{
freopen("divid.in","r",stdin);
freopen("divid.out","w",stdout);
// freopen("1.txt","r",stdin);
scanf("%d%d",&n,&t);
for(int i=1;i<n;i++){
scanf("%d",&a[i]);
}
for(int i=1;i<n;i++){
for(int j=i+1;j<n;j++){
if(a[j]>a[i]){
next[i]=j+1;
break;
}
}
}
for(int i=1;i<n;i++){
b[a[i]+1]++;
if(next[i])
b[next[i]]--;
}//for(int i=1;i<n;i++)cout<<next[i]<<" ";
for(int i=1;i<=n;i++){
b[i]+=b[i-1];//cout<<b[i]<<" ";
if(i%t==0){
cout<<(b[i]&1);
}
}
return 0;
}