제출 #124228

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
124228		KieranHorgan	Dancing Elephants (IOI11_elephants)	C++17	26 / 100	9033 ms	2552 KiB

elephants

#include "elephants.h"
#include <bits/stdc++.h>
using namespace std;

int n;
vector<int> a;

set<pair<int,int>> pos;
int L;
void init(int N, int L_, int X[]) {
	L = L_;
	n = N;
	a.resize(n);
	for(int i = 0; i < n; i++) {
		a[i] = X[i];
		pos.insert({a[i], i});
	}
}

int update(int i, int y) {
	pos.erase(make_pair(a[i], i));
	a[i] = y;
	pos.insert(make_pair(a[i], i));

	int mx = pos.rbegin()->first;
	int l = pos.begin()->first + L+1;
	int ans = 1;
		// cerr << l << " " << mx << endl;
	while(l <= mx) {
		l = pos.lower_bound(make_pair(l,0))->first + L + 1;
		// cerr << l << endl;
		ans++;
	}
	// cerr << L << endl;
	// for(auto x: pos) {
		// cerr << x.first << " " << x.second << endl;
	// }
	// cerr << endl;

	return ans;
}

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