Submission #372597

#	Time	Username	Problem	Language	Result	Execution time	Memory
372597		Bill_00	Gap (APIO16_gap)	C++14	64.88 / 100	58 ms	2032 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#define N 100005
typedef long long ll;
using namespace std;
ll a[N],mn,mx;
long long findGap(int T, int n)
{
	ll m1=0,m2=1e18,ans=0;
	if(T==1 || n<=10){
		for(int i=1;i<=(n+1)/2;i++){
			MinMax(m1,m2,&mn,&mx);
			a[i]=mn;
			a[n+1-i]=mx;
			m1=mn+1;
			m2=mx-1;
		}
		for(int i=1;i<n;i++){
			ans=max(ans,a[i+1]-a[i]);
		}
		return ans;
	}
	else{
		ll ans=2;
		MinMax(m1,m2,&mn,&mx);
		if(mx-mn+1==n) return 1;
		ll l=mn,r=mx;
		while(l!=r){
			MinMax(l+1,l+ans,&mn,&mx);
			if(mx!=-1) l=mx;
			else{
				ll y=ans;
				while(mn==-1){
					y*=2;
					MinMax(l+1,l+y,&mn,&mx);
				}
				ans=max(ans,mn-l);
				l=mx;
			}
		}
		return ans;
	}
}

• Subtask 1: 30 / 30
• Subtask 2: 34.8777572039 / 70