#include "alienslib.cpp"
#include <bits/stdc++.h>
using namespace std;
int n,x,y,ox,oy,l,r,up,lo,sz;
bool check(int x,int y)
{
cout << "examine " << x << ' ' << y; cout << flush;
// return examine(x,y);
string s; cin >> s;
return s=="true";
}
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n >> x >> y;
//get_size_and_start(n,x,y);
//cout << check(x,y) << endl;
ox = x,oy = y;
l = x,r = n;
// return 0;
for(int i = 1;x+i <= n;i*=2)
{
if(!check(x+i,y)){ r = x+i; break; }
else if(!check(x+i+1,y)){ r = x+i+1; break; }
else l = x+i;
x+=i;
}
//return 0;
while(l<r)
{
int m = (l+r)/2;
if(check(m,y))
{
if(!check(m+1,y)){ l = m; break; }
else l = m+1;
}
else r = m;
}
// return 0;
//cout << "still ok";
//cout.flush();
//cout << l;
up = l;
x = ox,y = oy;
l = 1,r = x;
for(int i = 1;x-i >= 1;i*=2)
{
// cout << x << ' ' << x-i << endl;
if(!check(x-i,y)){ l = x-i; break; }
else if(!check(x-i-1,y)){ l = x-i-1; break; }
else r = x-i;
x-=i;
}
while(l<r)
{
int m = (l+r)/2;
// cout << l << ' ' << m << ' ' << r << endl;
// cout << check(m,y) << endl;
if(check(m,y))
{
if(!check(m-1,y)){ l = m; break; }
else r = m;
}
else l = m+1;
}
// cout << r << endl;
// cout << lo << ' ' << up << ' ' << sz << endl;
lo = l,sz = up-lo+1;
// cout << lo << ' ' << up << ' ' << sz << endl;
x = ox,y = oy;
while(check(x-sz,y-sz)) x-=sz,y-=sz;
while(check(x-sz*2,y)) x-=sz*2;
while(check(x,y-sz*2)) y-=sz*2;
l = x-sz,r = x;
while(l<r)
{
int m = (l+r)/2;
if(check(m,y))
{
if(!check(m-1,y)){ l = m; break; }
else r = m;
}
else l = m+1;
}
//return 0;
x = l;
l = y-sz,r = y;
while(l<r)
{
int m = (l+r)/2;
if(check(x,m))
{
if(!check(x,m-1)){ l = m; break; }
else r = m;
}
else l = m+1;
}
y = l;
cout << x+sz*2+sz/2 << ' ' << y+sz*2+sz/2;
cout << flush;
//solution(x+sz*2+sz/2,y+sz*2+sz/2);
}
Compilation message
aliens.cpp:1:10: fatal error: alienslib.cpp: No such file or directory
#include "alienslib.cpp"
^~~~~~~~~~~~~~~
compilation terminated.
