제출 #900266

#제출 시각아이디문제언어결과실행 시간메모리
900266Muhammad_Aneeq코끼리 (Dancing Elephants) (IOI11_elephants)C++17
26 / 100
9010 ms7256 KiB
#include <set>
using namespace std;
int const MAXN=2e5+10;
int pos[MAXN]={};
set<int>s;
int l;
void init(int N, int L, int X[])
{
	l=L;
	for (int i=0;i<N;i++)
	{
		pos[i]=X[i];
		s.insert(X[i]);
	}
}
int update(int i, int y)
{
	s.erase(pos[i]);
	pos[i]=y;
	s.insert(y);
	int z=0;
	auto f=begin(s);
	while (f!=s.end())
	{
		f=s.upper_bound(*f+l);
		z++;
	}
	return z;
}
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