제출 #987160

#제출 시각아이디문제언어결과실행 시간메모리
987160Pyqe송신탑 (IOI22_towers)C++17
23 / 100
4089 ms2136 KiB
#include <bits/stdc++.h>
#include "towers.h"

using namespace std;

const long long inf=1e18;
long long n,a[100069];

void init(int on,vector<int> aa)
{
	long long i;
	
	n=on;
	for(i=1;i<=n;i++)
	{
		a[i]=aa[i-1];
	}
}

int max_towers(int lb,int rb,int cw)
{
	long long i,l=inf,c=0;
	
	lb++;
	rb++;
	for(i=lb;i<=rb;i++)
	{
		if(c%2==0)
		{
			if(a[i]<=l-cw)
			{
				c++;
				l=a[i];
			}
			else if(a[i]>l)
			{
				l=a[i];
			}
		}
		else
		{
			if(a[i]>=l+cw)
			{
				c++;
				l=a[i];
			}
			else if(a[i]<l)
			{
				l=a[i];
			}
		}
	}
	return (c+1)/2;
}
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