Cod sursa(job #2368823)

Utilizator OgneanMihneaOgnean Mihnea Ionut OgneanMihnea Data 5 martie 2019 18:29:10
Problema Elementul majoritar Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.62 kb
#include <fstream>
#include <iostream>
using namespace std;

ifstream fin("elmaj.in");
ofstream fout("elmaj.out");

int cand, n, v[1000003], i, k, ap;

int main()
{
    fin>>n;
    for(i=1; i<=n; i++)
    {
        fin>>v[i];
    }
    cand=v[1];
    k=1;
    for(i=2; i<=n; i++)
    {
        if(v[i]==cand)
            k++;
        else
        {
            k--;
        }
        if(k<0)
            cand=v[i];
    }
    ap=0;
    for(i=1; i<=n; i++)
    {
        if(v[i]==cand)
            ap++;
    }
    if(ap>n/2)
        fout<<cand<<" "<<ap;
    else
        fout<<-1;
    return 0;
}