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Cod sursa(job #670011)
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,v[1000001],em,nr;
int main(void){
register int i,j;
f>>n;
f>>v[1];
em=v[1];
nr=1;
for(i=2;i<=n;i++){
f>>v[i];
if(v[i]==em)
nr++;
else
nr--;
if(nr==0)
em=v[i],nr=1;
}
nr=0;
for(i=1;i<=n;i++)
if(em==v[i])
nr++;
if(nr>=n/2+1)
g<<em<<" "<<nr;
else
g<<"-1";
return 0;
}