vb.cpp

/*              |\ | |  ||\ \ /(_~     |~)|_~|\/||_~|\/||~)|_~|~)
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*/                              
#include<bits/stdc++.h>
using namespace std;
 
#define fastio ios_base::sync_with_stdio(0); cin.tie(0)
#define LL long long 
#define mod 998244353 
#define FOR(i, j, k) for (int i=j ; i<k ; i++)
#define ROF(i, j, k) for (int i=j ; i>=k ; i--) 
#define debug(...) fprintf(stderr, __VA_ARGS__), fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false); debug("%s time : %.4fs", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))

const long long INF = 1e18;
const long long MAX = 1e5+10;

int main(){
    fastio;
    int t=1; cin>>t;
    while(t--){
        int n=200000;  cin>>n; 
         LL a[n+1]={0};
        priority_queue<int> p; priority_queue<int,vector<int>,greater<int>>in[n+1];
        p.push(n); in[n].push(1); int c=1; 
        while(!p.empty()){
            int len= p.top(),i=in[len].top();
            int j = i+len-1; p.pop(); in[len].pop(); 
            if(len&1){
                int k = (i+j)/2;    
                a[k] = c++;
                if(k-1-i+1>0) p.push(k-1-i+1),in[k-1-i+1].push(i);
                if(j-k>0) p.push(j-k),in[j-k].push(k+1);
            }else{
                int k = (i+j)/2;    
                a[k] = c++;
                if(k-1-i+1>0) p.push(k-1-i+1),in[k-1-i+1].push(i);
                if(j-k>0) p.push(j-k),in[j-k].push(k+1);
            }
        }
        FOR(i,1,n+1) cout<<a[i]<<" ";
        cout<<"\n";
        
    }
}