Submission #1213955

#	Time	Username	Problem	Language	Result	Execution time	Memory
1213955		fskarica	Hack (APIO25_hack)	C++20	0 / 100	19 ms	16020 KiB

hack

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

using namespace std;

#define ll long long
#define fi first
#define se second
#define pii pair<int, int>

int n = 1000000;
int bs(int col) {
    int lo = 1;
    int hi = n + 10;
    while (lo < hi) {
        int mid = (lo + hi) / 2;

        int cnt = 0;
        for (int i = 0; i < mid; i++) {
            int x = n / mid;
            if (i < n % mid) x++;

            cnt += x * (x - 1) / 2;
        }

        if (cnt > col) lo = mid + 1;
        else hi = mid;
    }

    return lo;
}

int hack() {
    vector <ll> v;
    for (int i = 0; i < n; i++) v.push_back(i);
    int x = collisions(v);

    return bs(x);
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 8
• Subtask 2: 0 / 17
• Subtask 3: 0 / 75