Cod sursa(job #1153485)

Utilizator clopotelNeamtu Sergiu clopotel Data 25 martie 2014 15:19:55
Problema Elementul majoritar Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.8 kb
#include <iostream>
#include <fstream>

using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int a[1000001],n;
int fct()
{
    int c=-1,k=0;
    for(int i=0;i<n;i++)
    {
        if(k==0)
        {
            c=a[i];
            k=1;
        }
        else
            if(a[i]==c)
            {
                k++;
            }
            else
                k--;
    }
    if(c<0)
        return c;
    int nr=0;
    for(int i=0;i<n;i++)
    {
        if(a[i]==c)
            nr++;
    }
    if(nr>n/2)
        return c;
    else
        return -1;
}
int main()
{
    fin>>n;
    for(int i=0;i<n;i++)
        fin>>a[i];
    int m=fct(),x=0;
    for(int i=0;i<n;i++)
        if(a[i]==m)
            x++;
    cout<<m<<" "<<x;
    return 0;
}