Submission #1235036

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235036		Hanksburger	Hack (APIO25_hack)	C++20	78.10 / 100	199 ms	1284 KiB

hack

#include "hack.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
int hack()
{
    int l=2, r=1e9;
    while (l<r)
    {
        int mid=(l+r)/2, sq=sqrt(mid-l+1.5);
        vector<long long> tmp;
        for (int i=1; i<=sq; i++)
            tmp.push_back(i);
        for (int i=mid+1; i>l; i-=sq)
            tmp.push_back(i);
        sort(tmp.begin(), tmp.end());
        tmp.resize(unique(tmp.begin(), tmp.end())-tmp.begin());
        if (collisions(tmp))
            r=mid;
        else
            l=mid+1;
    }
    return l;
}

• Subtask 0: 0 / 0
• Subtask 1: 8 / 8
• Subtask 2: 17 / 17
• Subtask 3: 53.0951 / 75