Submission #112974

#	Time	Username	Problem	Language	Result	Execution time	Memory
112974		andremfq	Rice Hub (IOI11_ricehub)	C++17	100 / 100	21 ms	4096 KiB

ricehub

#include<bits/stdc++.h>
#include"ricehub.h"
#define debug(args...)	//fprintf(stderr,args)
using namespace std;
const int MAXR=100010;
 
int R,L,X[MAXR];
long long int sp1[MAXR],sp2[MAXR],x[MAXR];
long long int B;
int resp;
 
int besthub(int r,int l,int v[],long long int b)
{	
	sort(v,v+r);
	for(int i=0;i<r;i++)	x[i+1]=v[i];
	
	for(int i=1;i<=r;i++)	sp1[i]=sp1[i-1]+x[i];
	
	for(int i=r;i>0;i--)	sp2[i]=sp2[i+1]+(l-x[i]);
	
	int ini=1,	fim=1;
	while(fim<=r)
	{
		if(ini>fim)		fim++;
		
		int m=(ini+fim)/2;
		
		long long int op1=sp1[fim]-sp1[m]-((fim-m)*(x[m]));
		
		long long int op2=sp2[ini]-sp2[m]-((m-ini)*(l-x[m]));
		
		debug("op1 = %d  op2 = %d  ini = %d  fim = %d\n",op1,op2,ini,fim);
		
		if(op1+op2<=b)	resp=max(resp,fim-ini+1),	fim++;
		else ini++;
	}
	
	return resp;
}
/*
int main ()
{	
	scanf("%d %d",&R,&L);
	
	for(int i=0;i<R;i++)	scanf("%d",&X[i]);
	
	scanf("%lld",&B);
	
	int RESP=besthub(R,L,X,B);
	
	printf("%lld\n",RESP);
}
 
/*
5 20 
1 2 10 12 14
6
*/

Compilation message (stderr)

ricehub.cpp:54:1: warning: "/*" within comment [-Wcomment]
 /*

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