#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N=5e3;
int a[N+5],x[N+5];
void solve(int n){
vector <pair<int,int>> v;
cout<<"query(1, 2)\n";
fflush(stdout);
int dist;
cin>>dist;
for (int i=3;i<=n;++i){
cout<<"query("<<i-1<<", "<<i<<")\n";
fflush(stdout);
int x;
cin>>x;
cout<<"query("<<i-2<<", "<<i<<")\n";
fflush(stdout);
int y;
cin>>y;
v.push_back({x,y});
}
a[1]=1e9;
a[2]=1e9+dist;
x[1]=x[2]=0;
int bruh=min(a[1],a[2]);
for (int i=3;i<=n;++i){
x[i]=0;
int d=a[i-1]+v[i-3].first;
if (max(d,max(a[i-1],a[i-2]))-min(d,min(a[i-1],a[i-2]))==v[i-3].second) a[i]=d;
else a[i]=a[i-1]-v[i-3].first;
bruh=min(bruh,a[i]);
}
--bruh;
for (int i=1;i<=n;++i) a[i]-=bruh,x[a[i]]=i;
bool ok=true;
for (int i=1;i<=n;++i)
if (!x[i]) ok=false;
if (x[1]>x[n]) ok=false;
if (ok){
for (int i=1;i<=n;++i) cout<<"answer("<<i<<", "<<a[i]<<")\n";
fflush(stdout);
return;
}
a[1]=1e9;
a[2]=1e9-dist;
bruh=min(a[1],a[2]);
for (int i=3;i<=n;++i){
x[i]=0;
int d=a[i-1]+v[i-3].first;
if (max(d,max(a[i-1],a[i-2]))-min(d,min(a[i-1],a[i-2]))==v[i-3].second) a[i]=d;
else a[i]=a[i-1]-v[i-3].first;
bruh=min(bruh,a[i]);
}
--bruh;
for (int i=1;i<=n;++i) a[i]-=bruh;
for (int i=1;i<=n;++i) cout<<"answer("<<i<<", "<<a[i]<<")\n";
fflush(stdout);
}
Compilation message
/usr/bin/ld: /tmp/ccxl3jis.o: in function `main':
grader.cpp:(.text.startup+0x30): undefined reference to `solve(int)'
collect2: error: ld returned 1 exit status
