Cod sursa(job #1811173)

Utilizator andreigasparoviciAndrei Gasparovici andreigasparovici Data 20 noiembrie 2016 21:46:30
Problema Elementul majoritar Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <unordered_map>
#include <vector>
#include <fstream>
using namespace std;
unordered_map<int,int>m;
int a[1000000], n;

int main()
{
    ifstream in("elmaj.in");
    in>>n;
    for(int i=0;i<n;i++)
    {
        in>>a[i];
        m[a[i]]++;
    }
    ofstream out("elmaj.out");
    for(int i=0;i<n;i++)
    {
        if(m[a[i]]>=n/2+1)
        {
            out<<a[i]<<' '<<m[a[i]];
            return 0;
        }
    }
    out<<-1;
    return 0;
}