제출 #530149

#제출 시각아이디문제언어결과실행 시간메모리
530149LucaDantasCONSUL (info1cup19_consul)C++17
4.96 / 100
46 ms320 KiB
#include "grader.h" #include <bits/stdc++.h> using namespace std; constexpr int maxn = 1e5+10, SZ = 50, tot = 100; mt19937 rng(random_device{}()); int rnd(int x) { return (rng() % x + x) % x; } int a[maxn], mark[maxn]; void solve(int n) { for(int i = 0; 2*i < tot; i++) { int rd = rnd(n)+1, cor = kth(rd); if(cnt(cor) > n/3) return (void)(say_answer(cor)); } say_answer(-1); /* vector<int> usar; map<int,int> freq; while(usar.size() < min(n, SZ)) { int rd = rnd(n)+1; if(!mark[rd]) usar.push_back(rd), a[rd] = kth(rd), freq[a[rd]]++; mark[rd] = 1; } for(int x : usar) mark[x] = 0; vector<pair<int,int>> maiores; for(auto it : freq) maiores.push_back({it.second, it.first}); sort(maiores.begin(), maiores.end(), greater<pair<int,int>>()); while(maiores.size() > tot - SZ) maiores.pop_back(); if(n <= SZ) { if(maiores[0].first > n/3) say_answer(maiores[0].second); else say_answer(-1); return; } for(int i = 0; i < maiores.size(); i++) if(cnt(maiores[i].second) > n/3) return (void)(say_answer(maiores[i].first)); say_answer(-1); */ }
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