Submission #1205110

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205110		tamzid	Hack (APIO25_hack)	C++20	0 / 100	3094 ms	8436 KiB

hack

#include "hack.h"
#include <vector>
#include <map>
using ll = long long;

int hack(){
    // std::vector<long long> x = {3333,2565454,21223,898997,9999,4,8,100,2340040,222,44,2222211};
    // long long a = collisions(x);


    std::vector<ll> x;
    for(ll i=1;i<=500000;++i)
        x.push_back(i);

    ll c = collisions(x);

    ll n;
    for(n=2;n<=500000;++n)
    {
        std::map<ll,ll> mp;
        ll a = 0;

        for(ll &x2 : x)
        {
            a+=mp[x2 % n];
            ++mp[x2 % n];
        }
        if(a==c)
            break;
    }

    return n;
}

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