Submission #710391

#	Time	Username	Problem	Language	Result	Execution time	Memory
710391		Baytoro	Gap (APIO16_gap)	C++17	70 / 100	61 ms	1188 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
#define ll long long
ll a[200005],inf=1e18;
ll mx,mn;
long long findGap(int T, int N){
	if(T==1){
		return 3;
		ll l=0,r=N,x=0,y=inf;
		while(l<r){
			MinMax(x,y,&mn,&mx);
			a[l++]=mn,a[--r]=mx;
			x=mn+1;
			y=mx-1;
		}
		ll ans=0;
		for(int i=0;i<N-1;i++)
			ans=max(ans,a[i+1]-a[i]);
		return ans;
	}
	else{
		MinMax(1,1e18,&mn,&mx);
		if(N==2)
			return mx-mn;
		ll sz=(mx-mn-1);
		ll s=mn+1,last=mn,ans=0;
		for(int i=0;i<N-1;i++){
			ll tmp=s+sz/(N-1)-1;
			if(i<sz%(N-1)) tmp++;
			MinMax(s,tmp,&mn,&mx);
			if(mn!=-1){
				ans=max(ans,mn-last);
				last=mx;
			}
			s=tmp+1;
		}
		return max(ans,s-last);
	}
	//return 0;
}

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