Submission #137003

#	Time	Username	Problem	Language	Result	Execution time	Memory
137003		amiratou	Rice Hub (IOI11_ricehub)	C++14	68 / 100	1083 ms	1784 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define ii pair<ll,ll>
using namespace std;

int besthub(int R, int L, int X[], long long B)
{
	int ans=0;
	for (int i = 0; i < R; ++i)
	{
		int idx=i,comp=1;
		ll rem=B;
		priority_queue<pair<ii,ll>,vector<pair<ii,ll>>,greater<pair<ii,ll> > > q;
		if(idx-1>=0)q.push({{X[idx]-X[idx-1],idx-1},0});
		if(idx+1<R)q.push({{X[idx+1]-X[idx],idx+1},1});
		while(!q.empty()){
			pair<ii,ll> front =q.top();
			q.pop();
			ll C=front.fi.fi,id=front.fi.se;
			if(C>rem)break;
			rem-=C,comp++;
			if(front.se&&id+1<R)
				q.push({{X[id+1]-X[id]+C,id+1},1});
			if(!front.se&&id-1>=0)
				q.push({{X[id]-X[id-1]+C,id-1},0});
		}
		//cerr<<i<<" "<<comp<<"\n";
		ans=max(ans,comp);
	}
	return ans;
}

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 0 / 32