Submission #614108

#	Time	Username	Problem	Language	Result	Execution time	Memory
614108		nohaxjustsoflo	Gap (APIO16_gap)	C++17	100 / 100	60 ms	1868 KiB

gap

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> order_set;
mt19937 mt_rand(chrono::high_resolution_clock::now().time_since_epoch().count());
//uniform_int_distribution<int> gen; ///(min, max)
//int random() {return gen(mt_rand);}
const int mxN=1e5+5;
const int mod=998244353;
const int mxlogN=40;
const int mxK=26;
const ll inf=1e18;
const int K=600;

void MinMax(ll s, ll t, ll *mn, ll *mx);
ll a[mxN];
ll findGap(int t, int n)
{
    if(t==1)
    {
        ll mn=0,mx=inf;
        for(int l=0, r=n-1; l<=r; l++, r--)
        {
            MinMax(mn,mx,&a[l],&a[r]);
            mn=a[l]+1;
            mx=a[r]-1;
        }
        ll ans=0;
        for(int i=1; i<n; i++) ans=max(ans,a[i]-a[i-1]);
        return ans;
    }
    ll mn,mx;
    MinMax(0,inf,&mn,&mx);
    ll gap=(mx-mn+n-1-1)/(n-1);
    ll x=mn,y=mn;
    while(x<mx)
    {
        ll mn2, mx2;
        MinMax(x+1,min(inf,y+gap),&mn2,&mx2);
        y+=gap;
        if(~mn2)
        {
            gap=max(gap,mn2-x);
            x=mx2;
        }
    }
    return gap;
}
/*
int main()
{

}*/
/*
7 3
4 1 3 4 0 2 3
*/

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70