Submission #540654

#	Time	Username	Problem	Language	Result	Execution time	Memory
540654		Carmel_Ab1	CONSUL (info1cup19_consul)	C++17	100 / 100	27 ms	336 KiB

consul

#include "grader.h"
#include "bits/stdc++.h"

void solve(int n){
    std::vector<int>ord(n);
    for(int i=0; i<n; i++)
        ord[i]=i+1;

    std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count());
    std::shuffle(ord.begin(),ord.end(),rng);

    int limit=std::min(n,(n<=50?25:30));
    for(int i=0; i<limit; i++){
        int v=kth(ord[i]);
        int c=cnt(v);
        if(c>n/3) {
            say_answer(v);
            return;
        }
    }
    say_answer(-1);
}

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 65 / 65