Submission #1260291

#	Time	Username	Problem	Language	Result	Execution time	Memory
1260291		Zbyszek99	Gap (APIO16_gap)	C++20	72.60 / 100	39 ms	2352 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define ull unsigned long long
#define ff first
#define ss second
#define pii pair<int,int>
#define pll pair<long long, long long>
#define vi vector<int>
#define vl vector<long long>
#define pb push_back
#define rep(i, b) for(int i = 0; i < (b); ++i)
#define rep2(i,a,b) for(int i = a; i <= (b); ++i)
#define rep3(i,a,b,c) for(int i = a; i <= (b); i+=c)
#define count_bits(x) __builtin_popcountll((x))
#define all(x) (x).begin(),(x).end()
#define siz(x) (int)(x).size()
#define forall(it,x) for(auto& it:(x))
using namespace __gnu_pbds;
using namespace std;
typedef tree<int, null_type, less<int>, rb_tree_tag,tree_order_statistics_node_update> ordered_set;
//mt19937 mt;void random_start(){mt.seed(chrono::time_point_cast<chrono::milliseconds>(chrono::high_resolution_clock::now()).time_since_epoch().count());}
//ll los(ll a, ll b) {return a + (mt() % (b-a+1));}
const int INF = 1e9+50;
const ll INF_L = 1e18+40;
const ll MOD = 1e9+7;


ll findGap(int T, int n)
{
	cerr << T << " " << n << " T\n";
	if(T == 1 || n <= 20)
	{
		vl arr;
		ll l = 0;
		ll r = 1e18;
		rep(i,n/2)
		{
			ll l2;
			ll r2;
			MinMax(l,r,&l2,&r2);
			arr.pb(l2);
			arr.pb(r2);
			l = l2+1;
			r = r2-1;
		}
		if(n%2 == 1)
		{
			ll xd;
			ll xd2;
			MinMax(l,r,&xd,&xd2);
			arr.pb(xd);
		}
		sort(all(arr));
		ll ans = 0;
		rep(i,siz(arr)-1) ans = max(ans,arr[i+1]-arr[i]);
		return ans;
	}
	else
	{
		ll ans = 1;
		ll first;
		ll last;
		MinMax(0,1e18,&first,&last);
		ll cur = first;
		while(cur < last)
		{
			ll ans2 = ans;
			while(true)
			{
				ll first2;
				ll last2;
				MinMax(cur+1,cur+ans2,&first2,&last2);
				if(first2 == -1)
				{
					ans2 *= 2;
					continue;
				}
				ans = max(ans,first2-cur);
				cur = last2;
				break;
			}
		}
		return ans;
	}
}

• Subtask 1: 30 / 30
• Subtask 2: 42.604 / 70