Submission #72865

#	Time	Username	Problem	Language	Result	Execution time	Memory
72865		KLPP	Dancing Elephants (IOI11_elephants)	C++14	26 / 100	9024 ms	2780 KiB

elephants

#include "elephants.h"
#include<set>
#include<iostream>
using namespace std;
typedef std::multiset<int>::iterator mit;
int n;
multiset<int> s;
int l;
int positions[1000000];
void init(int N, int L, int X[])
{
	l=L;
	n=N;
	for(int i=0;i<n;i++){
		positions[i]=X[i];
		s.insert(X[i]);
	}
}

int update(int i, int y)
{
	mit it=s.find(positions[i]);
	s.erase(it);
	s.insert(y);
	it=s.begin();
	int cnt=0;
	while(it!=s.end()){
		int next=*it+l;
		it=s.upper_bound(next);
		cnt++;
	}positions[i]=y;
	return cnt;
}

• Subtask 1: 10 / 10
• Subtask 2: 16 / 16
• Subtask 3: 0 / 24
• Subtask 4: 0 / 47
• Subtask 5: 0 / 3