Cod sursa(job #1690446)

Utilizator emity03Vrabie Vladislav emity03 Data 15 aprilie 2016 08:54:54
Problema Elementul majoritar Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include <fstream>
#include <unordered_map>
 
using namespace std;
 
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
 
int N,x,k;
unordered_map<int,int> M;
 
int main()
{
    ios_base::sync_with_stdio(0);
 fin.tie(0);
 fin>>N;
  for(int i=0; i<N; ++i)
  {
     fin>>x;
     M[x]++;
     if(M[x]>N/2)k=x;
  }
 
  if(k)fout<<k<<" "<<M[k];
  else fout<<"-1";
return 0;
}