Submission #486945

#	Time	Username	Problem	Language	Result	Execution time	Memory
486945		cfalas	Gap (APIO16_gap)	C++14	70 / 100	46 ms	1856 KiB

gap

#include "gap.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;

#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto v : a)

int t, n;
vi a, b;

long long findGap(int T, int n){
	if(T==2){
		long long int a1=0, an=0;
		MinMax(0, (ll)1e18, &a1, &an);
		long long ans = (an - a1) / (n-1);
		long long start = a1 + 1;
		long long ansstart=a1;
		while(start <= an){
			long long a=0, b=0;

			MinMax(start, start + ans, &a, &b);

			if(a==-1){
				start += ans + 1;
			}
			else{
				ans = max(ans, a-ansstart);
				ansstart = b;
				start = b+1;
			}
		}
		return ans;
	}
	else{
		ll a[n] = {};
		MinMax(0, (ll)(1e18), &a[0], &a[n-1]);
		FORi(i,1,n/2){
			MinMax(a[i-1]+1, a[n-i]-1, &a[i], &a[n-i-1]);
		}
		ll ans = a[1]-a[0];
		FOR(i,n-1){
			ans = max(ans, a[i+1]-a[i]);
		}
		return ans;
	}
}

• Subtask 1: 0 / 30
• Subtask 2: 70 / 70