Cod sursa(job #2811626)

Utilizator bubblegumixUdrea Robert bubblegumix Data 2 decembrie 2021 18:48:12
Problema Elementul majoritar Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.96 kb
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>  
#include <complex>
#include <queue>
#include <set>
#include <unordered_set>
#include <list>
#include <chrono>
#include <random>
#include <iostream>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include <map>
#include <unordered_map>
#include <stack>
#include <iomanip>
#include <fstream>
 
using namespace std;
 
typedef long long ll;
typedef long double ld;
typedef pair<int,int> p32;
typedef pair<ll,ll> p64;
typedef pair<double,double> pdd;
typedef vector<ll> v64;
typedef vector<int> v32;
typedef vector<vector<int> > vv32;
typedef vector<vector<ll> > vv64;
typedef vector<vector<p64> > vvp64;
typedef vector<p64> vp64;
typedef vector<p32> vp32;
ll MOD = 998244353;
double eps = 1e-12;
#define forn(i,e) for(ll i = 0; i < e; i++)
#define forsn(i,s,e) for(ll i = s; i < e; i++)
#define rforn(i,s) for(ll i = s; i >= 0; i--)
#define rforsn(i,s,e) for(ll i = s; i >= e; i--)
#define ln "\n"
#define dbg(x) cout<<#x<<" = "<<x<<ln
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define INF 2e18
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define all(x) (x).begin(), (x).end()
#define sz(x) ((ll)(x).size())
const int lim = 1e6 + 6;
vector<int> voturi;
unordered_map<int, int> freq;
int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out", "w", stdout);
    fast_cin();
    int n;
    cin >> n;
    voturi.resize(n);
    for (auto& vot_curent : voturi)
        cin >> vot_curent;

    for (auto vot : voturi)
        freq[vot]++;


    int el_majoritar = -1;
    for (auto it : freq)
    {
        if (it.second >= n / 2 + 1)
            el_majoritar = it.first;
    }
    
    cout << el_majoritar << " " << freq[el_majoritar];
    return 0;
}