Submission #151240

#	Time	Username	Problem	Language	Result	Execution time	Memory
151240		jun6873	Lokahian Relics (FXCUP4_lokahia)	C++17	0 / 100	3 ms	636 KiB

lokahia

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

int FindBase(int N) {
    srand(20001021);

    vector<int> ans;

    for (int i=0; i<N; i++) ans.push_back(i);

    int k;
    while (ans.size() > 1) {
        vector<int> nans;
        if (ans.size() % 2) nans.push_back(ans.back());
        for (int i=0; i+1<ans.size(); i+=2) {
            if (ans[i] == ans[i+1]) nans.push_back(ans[i]);
            else if ((k = CollectRelics(ans[i], ans[i+1])) != -1) nans.push_back(k);
        }
        ans = nans;
    }

    if (ans.empty()) return -1;

    int cand = ans[0];

    int cnt = 1;
    for (int i=0; i<N; i++) if (i != cand) cnt += (CollectRelics(cand, i) != -1);

    if (cnt > N/2) return cand;
    return -1;
}

Compilation message (stderr)

lokahia.cpp: In function 'int FindBase(int)':
lokahia.cpp:16:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i=0; i+1<ans.size(); i+=2) {
                       ~~~^~~~~~~~~~~

• Subtask 1: 0 / 100