제출 #39161

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
39161		faustaadp	로봇 (IOI13_robots)	C++14	76 / 100	3000 ms	37880 KiB

robots

#include "robots.h"
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
int t,i,n,m,x[1010101],y[1010101],hs,l,r,c,xx[1010101],yy[1010101],b[1010101],st[1010101];
pair<int,int> a[1010101];
void un(ll aa,ll bb,ll cc,ll dd,ll ee)
{
	if(aa==bb)
		st[ee]=dd;
	else
	{
		ll ce=(aa+bb)/2;
		if(cc<=ce)
			un(aa,ce,cc,dd,ee*2);
		else
			un(ce+1,bb,cc,dd,ee*2+1);
		st[ee]=min(st[ee*2],st[ee*2+1]);
	}
}
ll hn(ll aa,ll bb,ll cc,ll dd,ll ee)
{
	if(bb<cc||dd<aa)
		return 1;
	else
	if(cc<=aa&&bb<=dd)
		return st[ee];
	else
	{
		ll ce=(aa+bb)/2;
		return min(hn(aa,ce,cc,dd,ee*2),hn(ce+1,bb,cc,dd,ee*2+1));
	}
}
bool cm(pair<ll,ll> aa,pair<ll,ll> bb)
{
	return aa.se>bb.se;
}
bool rmt(ll aa)
{
	ll ii,jj,le,re,hv1,ce,hv2;
	for(ii=0;ii<n;ii++)
	{
		xx[ii]=0;
		un(0,n-1,ii,0,1);
	}
	for(ii=0;ii<m;ii++)
		yy[ii]=0;
	for(ii=0;ii<t;ii++)
		b[ii]=0;
	for(ii=0;ii<t;ii++)
	{
		le=0;
		re=n-1;
		hv1=-1;
		while(le<=re)
		{
			ce=(le+re)/2;
			if(a[ii].fi<x[ce])
			{
				hv1=ce;
				re=ce-1;
			}
			else
				le=ce+1;
		}
		if(hv1!=-1)
		{
			le=hv1;
			re=n-1;
			hv2=-1;
			while(le<=re)
			{
				ce=(le+re)/2;
				if(hn(0,n-1,hv1,ce,1)==0)
				{
					hv2=ce;
					re=ce-1;
				}
				else
					le=ce+1;
			}
			if(hv2!=-1)
			{
				b[ii]=1;
			//	cout<<hv2<<" ";
				xx[hv2]++;
				if(xx[hv2]==aa)
				{
					un(0,n-1,hv2,1,1);
				//	cout<<hn(0,n-1,hv2,hv2,1)<<"hv\n";
				}
			}
		}
	}
//	cout<<"\n";
//	for(ii=0;ii<n;ii++)
//		cout<<xx[ii]<<" ";
//	cout<<aa<<"\n";
	for(ii=0;ii<m;ii++)
		un(0,m-1,ii,0,1);
	for(ii=0;ii<t;ii++)
	{
		if(b[ii]==0)
		{
			le=0;
			re=m-1;
			hv1=-1;
			while(le<=re)
			{
				ce=(le+re)/2;
				if(a[ii].se<y[ce])
				{
					hv1=ce;
					re=ce-1;
				}
				else
					le=ce+1;
			}
			if(hv1!=-1)
			{
				hv2=-1;
				le=hv1;
				re=m-1;
				while(le<=re)
				{
					ce=(le+re)/2;
					if(hn(0,m-1,hv1,ce,1)==0)
					{
						hv2=ce;
						re=ce-1;
					}
					else
						le=ce+1;
				}
				if(hv2!=-1)
				{
					b[ii]=1;
					yy[hv2]++;
					if(yy[hv2]==aa)
						un(0,m-1,hv2,1,1);
				}
			}
		}
		if(b[ii]==0)
		{
			return 0;
		}
	}
	
	return 1;
}
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
	t=T;
	for(i=0;i<T;i++)
		a[i]=mp(W[i],S[i]);
	n=A;
	m=B;
	for(i=0;i<A;i++)
		x[i]=X[i];
	for(i=0;i<B;i++)
		y[i]=Y[i];
	sort(a,a+T,cm);
	sort(x,x+A);
	sort(y,y+B);
	hs=-1;
	l=1;
	r=T;
	while(l<=r)
	{
		c=(l+r)/2;
		if(rmt(c))
		{
			hs=c;
			r=c-1;
		}
		else
			l=c+1;
	}
    return hs;
}

컴파일 시 표준 에러 (stderr) 메시지

robots.cpp: In function 'bool rmt(long long int)':
robots.cpp:44:8: warning: unused variable 'jj' [-Wunused-variable]
  ll ii,jj,le,re,hv1,ce,hv2;
        ^

• Subtask 1: 14 / 14
• Subtask 2: 0 / 14
• Subtask 3: 25 / 25
• Subtask 4: 37 / 37
• Subtask 5: 0 / 10