제출 #249788

#제출 시각아이디문제언어결과실행 시간메모리
249788eohomegrownapps코끼리 (Dancing Elephants) (IOI11_elephants)C++14
26 / 100
9035 ms1656 KiB
#include "elephants.h"
#include <bits/stdc++.h>
using namespace std;

int n,l;
set<int> elephants;
vector<int> elpos;

void init(int N, int L, int X[]) {
    n=N;l=L;
    elpos.resize(n);
    for (int i = 0; i<n; i++){
        elpos[i]=X[i];
        elephants.insert(X[i]);
    }
}

int update(int i, int y) {
    elephants.erase(elpos[i]);
    elpos[i]=y;
    elephants.insert(y);
    int ptr = 0;
    auto it = elephants.begin();
    while (it!=elephants.end()){
        ptr++;
        it = elephants.upper_bound(*it+l);
    }
    return ptr;
}
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