Submission #1213960

#	Time	Username	Problem	Language	Result	Execution time	Memory
1213960		fskarica	Hack (APIO25_hack)	C++20	0 / 100	31 ms	16068 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<ll, ll>

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

        ll cnt = 0;
        for (ll i = 0; i < mid; i++) {
            ll 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 (ll i = 0; i < n; i++) v.push_back(i);
    ll x = collisions(v);

    return bs(x);
}

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