#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pb push_back
using namespace std;
//#include "game.h"
#include "gap.h"
ll answer = 0;
long long findGap(int T, int N)
{
ll l = -1, r = 1e18; r++;
ll cnt = 0;
int calls = 0;
ll len = -1;
while(true){
ll new_l,new_r;
if(len != -1){
if((r-l) < len/N) break;
}
cnt++;
if(answer >= r-l) break;
if(cnt > (N+1)/2){
if(l != r){
answer = max(answer,r-l);
}
break;
}
if(l+1 > r-1){
if(l == r) break;
answer = max(answer,r-l);
break;
}
MinMax(l+1,r-1,&new_l,&new_r);
calls++;
if(new_l == -1){
answer = max(answer,r-l);
break;
} else {
if(cnt > 1)answer = max(answer, max(new_l-l,r-new_r)); else len = new_r-new_l;
l = new_l;
r = new_r;
}
}
return answer;
}
