#include <gap.h>
#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll solve1(int n) {
long long left;
long long right;
left = 0;
right = 1e18;
long long mn = 0, mx = 1e18;
long long vec[n];
int cnt = 0;
int cn = n - 1;
while (mn < mx) {
MinMax(left, right, &mn, &mx);
vec[cnt++] = mn;
if (mn != mx)
vec[cn--] = mx;
left = mn + 1;
right = mx - 1;
}
long long ans = 0;
for (int i = 1; i < n; i++) {
if (vec[i] - vec[i - 1] > ans) {
ans = vec[i] - vec[i - 1];
}
}
return ans;
}
ll findGap(int t, int n) {
if (t == 1) {
return solve1(n);
}
ll l, r;
MinMax(0, 1e18, &l, &r);
if (n == 2) {
return r - l;
}
ll dif = (r - l + n) / n + 1;
l++; r--;
ll start = l;
ll fin = start + dif - 1;
ll fre = 0;
ll mx = 0;
ll ans = 0;
while (1) {
ll l1, r1;
MinMax(start, fin, &l1, &r1);
if (l1 == -1) {
fre += dif;
} else {
if (fre != 0) {
ans = max(ans, fre + mx + (l1 - start + 1));
}
fre = 0;
mx = fin - r1;
}
if (fin == r) break;
start = fin + 1;
fin = min(start + dif - 1, r);
}
return ans;
}
