Submission #787083

#	Time	Username	Problem	Language	Result	Execution time	Memory
787083		MinaRagy06	Dancing Elephants (IOI11_elephants)	C++17	50 / 100	9039 ms	4416 KiB

elephants

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
typedef int64_t ll;

int n, l;
int a[150'005][2];
void init(int N, int L, int X[]) {
    n = N, l = L;
    pair<int, int> v[n];
    for (int i = 0; i < n; i++) {
        v[i] = {X[i], i};
    }
    sort(v, v + n);
    for (int i = 0; i < n; i++) {
        a[i][0] = v[i].first;
        a[i][1] = v[i].second;
    }
}
int update(int x, int y) {
    int pos = -1;
    for (int i = 0; i < n; i++) {
        if (a[i][1] == x) {
            pos = i;
            break;
        }
    }
    if (a[pos][0] < y) {
        a[pos][0] = y;
        for (int i = pos; i + 1 < n && a[i][0] > a[i + 1][0]; i++) {
            swap(a[i][0], a[i + 1][0]);
            swap(a[i][1], a[i + 1][1]);
        }
    } else {
        a[pos][0] = y;
        for (int i = pos; i - 1 >= 0 && a[i][0] < a[i - 1][0]; i--) {
            swap(a[i][0], a[i - 1][0]);
            swap(a[i][1], a[i - 1][1]);
        }
    }
    int prv = a[0][0], cnt = 0;
    for (int i = 1; i < n; i++) {
        cnt += (a[i][0] - prv > l); 
        if (a[i][0] - prv > l) prv = a[i][0];

    }
    return cnt + 1;
}

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