This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <icc.h>
#include <bits/stdc++.h>
using namespace std;
const int mxN=100;
int cci;
bool vis[mxN];
vector<int> adj[mxN], ccs[mxN], qa[2];
void dfs(int u) {
vis[u]=1;
ccs[cci].push_back(u);
for(int v : adj[u])
if(!vis[v])
dfs(v);
}
/*
int query(int as, int bs, int *aa, int *ba) {
cout << "Query " << as << " " << bs << endl;
for(int i=0; i<as; ++i)
cout << aa[i] << " ";
cout << endl;
for(int i=0; i<bs; ++i)
cout << ba[i] << " ";
cout << endl;
int r;
cin >> r;
return r;
}
void setRoad(int u, int v) {
cout << "Set road " << u << " " << v << endl;
}
//*/
void run(int n) {
for(int it=0; it<n-1; ++it) {
for(int i=0; i<n; ++i) {
// cout << "hi1 " << i << endl;
if(!vis[i]) {
// cout << "hi2 " << i << endl;
dfs(i);
++cci;
}
}
for(int i=0; ; ++i) {
qa[0].clear();
qa[1].clear();
for(int j=0; j<cci; ++j)
for(int u : ccs[j])
qa[j>>i&1].push_back(u+1);
int qr=query(qa[0].size(), qa[1].size(), qa[0].data(), qa[1].data());
if(!qr)
continue;
int cm=0;
for(int k=0; k<i; ++k) {
qa[0].clear();
qa[1].clear();
for(int j=0; j<cci; ++j)
if((j&((1<<(k+1))-1))==cm)
for(int u : ccs[j])
qa[j>>i&1].push_back(u+1);
qr=query(qa[0].size(), qa[1].size(), qa[0].data(), qa[1].data());
if(!qr)
cm|=1<<k;
}
qa[0].clear();
qa[1].clear();
for(int j=0; j<cci; ++j)
if((j&((1<<i)-1))==cm)
for(int u : ccs[j])
qa[j>>i&1].push_back(u+1);
for(int j=0; j<2; ++j) {
while(qa[j].size()>1) {
qr=query(qa[j].size()/2, qa[j^1].size(), qa[j].data(), qa[j^1].data());
if(qr)
qa[j].erase(qa[j].begin()+qa[j].size()/2, qa[j].end());
else
qa[j].erase(qa[j].begin(), qa[j].begin()+qa[j].size()/2);
}
}
int u=qa[0][0], v=qa[1][0];
setRoad(u, v);
adj[u-1].push_back(v-1);
adj[v-1].push_back(u-1);
break;
}
memset(vis, 0, n);
while(cci)
ccs[--cci].clear();
}
}
/*
int main() {
int n;
cin >> n;
run(n);
}
//*/
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