#include "gap.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll solve1(int N){
ll s=0,t=1e18,ml=0,mr;
vector<ll> ans,sus2;
for(int i=0;i<N;i+=2){
MinMax(s,t,&ml,&mr);
if(mr==-1)break;
ans.push_back(ml);
if(ml==mr)break;
sus2.push_back(mr);
s=ml+1;
t=mr-1;
}
for(int j=sus2.size()-1;j>=0;j--){
ans.push_back(sus2[j]);
}
ll out=0;
for(int i=0;i<N;i++){
out=max(out,ans[i+1]-ans[i]);
}
// for(int i : ans)cout << i << ' ';
// cout << '\n';
return out;
}
ll solve2(int N){
ll ml,mr;
MinMax(0,1e18,&ml,&mr);
ll lo=ml,hi=mr;
ll L=hi-lo;
ll sus=(L+N-2)/(N-1);
ll ans = sus;
ll prev=lo;
for(ll i=ml+1;i<hi;i+=sus){
sus=ans;
MinMax(i,min(i+sus,hi-1),&ml,&mr);
if(ml==-1)continue;
ans=max(ans,ml-prev);
prev=mr;
}
return max(ans,hi-prev);
}
ll findGap(int T, int N){
if(T==1)return solve1(N);
else return solve2(N);
}
