#include<bits/stdc++.h>
#include "gap.h"
#pragma optimize ("g",on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
//01001101 01100001 01101011 01101000 01100001 01100111 01100001 01111001
using namespace std;
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()
#define ld double
#define ull unsigned long long
#define ff first
#define ss second
#define fix fixed << setprecision
#define pii pair<int, int>
#define E exit (0)
const ll inf = 1e18;
ll findGap(int t, int n) {
ll li, lj, ans = 0;
MinMax(0ll, inf, &li, &lj);
int cnt = 2;
while (cnt <= n) {
if (cnt == n) {
ans = max(ans, lj - li);
break;
}
ll i, j;
MinMax(li + 1, lj - 1, &i, &j);
ans = max({ans, i - li, lj - j});
li = i, lj = j;
cnt += 2;
}
return ans;
}
