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Cod sursa(job #696859)
#include<fstream>
using namespace std;
struct {long long e; long f;} x[1000000],aux;
int main()
{long n,i,j,l,ok;
long long nr;
ifstream g("elmaj.in");
g>>n;
g>>nr; l=0;
x[l].e=nr;
x[l].f=1;
aux=x[0];
for(i=1;i<n;i++)
{g>>nr; ok=1;
for(j=-1;((j<=l)&&(ok==1));++j)
if(nr==x[j].e)
{x[j].f++;
ok++;
if(aux.f<x[j].f)
if(x[j].f>=n/2+1)
aux=x[j];
}
if(ok==1)
{l++;
x[l].e=nr;
x[l].f=1;}
}
ofstream t("elmaj.out");
if(aux.f>=n/2+1)
t<<aux.e<<" "<<aux.f;
else
t<<-1;
g.close();
t.close();
return 0;
}