题目链接：点击打开链接
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <vector>
#include <iostream>
#include <map>
#include <set>
#include <math.h>
using namespace std;
#define inf 10000000
#define ll __int64
#define N 200005
ll n, m, v;
struct node{
int a,b,pos;
bool operator<(const node&x)const{
return a!=x.a?a<x.a:b<x.b;
}
}f[N];
int ans[N];
int main(){
ll i, j, T; cin>>T;
while(T--){
cin>>n;
ll all = 2*n-1;
for(i=1;i<=all; i++){
cin>>f[i].a>>f[i].b;
f[i].pos = i;
}
sort(f+1,f+all+1);
ll top = 0;
for(i=1;i<all; i+=2)
if(f[i].b >= f[i+1].b)
ans[top++]=f[i].pos;
else ans[top++] = f[i+1].pos;
ans[top++]=f[all].pos;
puts("YES");
sort(ans,ans+top);
for(i=0;i<top;i++)
printf("%d%c",ans[i],i==top-1?'\n':' ');
}
return 0;
}
/*
3
40 -83
52 -80
-21 -4
*/