Cod sursa(job #1156582)

Utilizator cristina_borzaCristina Borza cristina_borza Data 27 martie 2014 19:48:16
Problema Elementul majoritar Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.58 kb
#include <fstream>

using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,nr,sansa,a[1000002],i,ap;
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>a[i];
    nr=a[1];
    sansa=1;
    for(i=1;i<=n;i++)
    {
        if(a[i]==nr)
            sansa++;
        else
            sansa--;
        if(sansa<0)
        {
            sansa=1;
            nr=a[i];
        }
    }
    for(i=1;i<=n;i++)
        if(a[i]==nr)
            ap++;
    if(ap>n/2)
        fout<<nr<<" "<<ap;
    else
        fout<<-1;
    return 0;
}