Submission #762566

#	Time	Username	Problem	Language	Result	Execution time	Memory
762566		goodbyehanbyeol	Lokahian Relics (FXCUP4_lokahia)	C++17	100 / 100	1 ms	596 KiB

lokahia

#include "lokahia.h"
#include <bits/stdc++.h>
using namespace std;

int FindBase(int n){
	if(n == 1) return 0;
	mt19937 gen(time(NULL));
	uniform_int_distribution<int> uid(0, n - 1);

	vector<int> cnt(n);
	int rep = 101;
	for(int i = 0; i < rep; ++i){
		int x = uid(gen), y = uid(gen);
		while(x == y){
			y = uid(gen);
		}
		int rv = CollectRelics(x, y);
		if(rv != -1){
			++cnt[rv];
		}
	}
	int mx = 0, pos = -1;
	for(int i = 0; i < n; ++i){
		if(cnt[i] > mx){
			mx = cnt[i];
			pos = i;
		}
	}
	if(pos == -1) return -1;

	int gocnt = 1;
	for(int i = 0; i < n; ++i){
		if(i == pos) continue;
		gocnt += (CollectRelics(pos, i) != -1);
	}
	if(gocnt > n / 2) return pos;
	return -1;
}

• Subtask 1: 100 / 100