#include "icc.h"
#include<bits/stdc++.h>
using namespace std;
const int mxN = 105;
bool G[mxN][mxN];
int query(int sza, int szb, int a[], int b[]);
// {
// for(int i = 0;i < sza;++i){
// cout << a[i] << ' ';
// }
// cout << ": ";
// for(int i = 0;i < szb;++i){
// cout << b[i] << ' ';
// }
// int ans;
// cin >> ans;
// return ans;
// }
int Query(int sza, int szb, vector<int>a, vector<int>b){
int A[sza], B[szb];
for(int i = 0;i < sza;++i){
A[i] = a[i];
}
for(int i = 0;i < szb;++i){
B[i] = b[i];
}
return query(sza, szb, A, B);
}
void setRoad(int a, int b);
// {
// cout << "Found: " << a << " " << b << '\n';
// }
void run(int n){
srand(time(0));
for(int k = 0;k < n - 1;++k){
vector<int>V;
for(int i = 1;i <= n;++i){
V.push_back(i);
}
int node = -1, node2 = -1;
vector<int>a, b;
do{
a.clear();
b.clear();
int indx = rand() % (int)V.size();
node = V[indx];
a.push_back(node);
V.erase(V.begin() + indx);
for(int x : V){
if(!G[node][x]){
b.push_back(x);
}
}
}while(!Query(a.size(), b.size(), a, b));
int l = 0, r = b.size() - 1, ans = -1;
while(l <= r){
int mid = (l + r) / 2;
vector<int>temp;
for(int i = 0;i <= mid;++i){
temp.push_back(b[i]);
}
if(Query(a.size(), temp.size(), a, temp)){
ans = mid;
r = mid - 1;
}
else{
l = mid + 1;
}
}
node2 = b[ans];
setRoad(node, node2);
G[node][node2] = G[node2][node] = 1;
}
}
// int main(){
// // ios_base::sync_with_stdio(0);
// // cin.tie(0);
// int n;
// cin >> n;
// run(n);
// }
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