#include "chameleon.h" #include <bits/stdc++.h> using namespace std; int n; void Solve(int N) { n = N; vector<array<int,2>> ans; for(int i=1;i<=2*n;i++) { for(int j=i+1;j<=2*n;j++) { vector<int> p = {i,j}; int num = Query(p); if(num==1) { ans.push_back({i,j}); } } for(auto x:ans) { Answer(x[0],x[1]); } } }