Submission #447669

#	Time	Username	Problem	Language	Result	Execution time	Memory
447669		dxz05	Dancing Elephants (IOI11_elephants)	C++14	26 / 100	9064 ms	2764 KiB

elephants

#include "elephants.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 2e5 + 3e2;

int N, L;
int X[MAXN];

set<int> s;
void init(int _N, int _L, int _X[]){
    N = _N;
    L = _L;

    for (int i = 0; i < N; i++){
        X[i] = _X[i];
        s.insert(X[i]);
    }

}

int update(int i, int y){
    s.erase(X[i]);
    X[i] = y;
    s.insert(y);

    int ans = 1, last = *s.begin();
    for (int x : s){
        if (x - last > L){
            ans++;
            last = x;
        }
    }

    return ans;
}

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