Submission #1013709

#	Time	Username	Problem	Language	Result	Execution time	Memory
1013709		vjudge1	Dancing Elephants (IOI11_elephants)	C++17	26 / 100	9049 ms	14672 KiB

elephants

#include "elephants.h"
#include<bits/stdc++.h>
#pragma GCC optimize(2)
using namespace std;
int n,l;
int arr[50100];
set<int>st;
void init(int N, int L, int X[]){
    n = N;
    l=L;
    for(int i=0;i<N;i++)
        st.insert(arr[i]=X[i]);
}

int update(int i, int y) {
    st.erase(arr[i]);
    st.insert(arr[i]=y);
    int ans=0,lst=-1e9;
    for(auto b:st)
        if(lst+l<b)
            lst=b,ans++;
    return ans;
}

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