#include<bits/stdc++.h>
#include "gap.h"
using namespace std;
using ll =long long;
ll Sub1(ll N) {
ll b[N + 2],ans, lo1, hi1, lo, hi, l, r;
l = 1;
r = N;
lo = 0;
hi = 1e18;
while ( l <= r) {
MinMax(lo, hi, &lo1, &hi1);
if (lo1 == -1) break;
b[l] = lo1;
b[r] = hi1;
lo = lo1 + 1;
hi = hi1 - 1;
l ++;
r --;
}
ans = 0;
for (int i = 2; i <= N; i ++) {
ans =max(ans, b[i] - b[i - 1]);
}
return ans;
}
ll Sub2(ll N) {
return N;
}
long long findGap(int T, int N) {
if ( T == 1) {
return Sub1(N);
}
else return Sub2(N);
}
