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Cod sursa(job #775838)
#include<fstream>
#include<vector>
using namespace std;
#define NMAX 1000005
ifstream f("elmaj.in");
ofstream g("elmaj.out");
vector<int> a;
int n;
int main()
{
int x,nr,maj;
f>>n>>x;
nr=1;maj=x;
a.push_back(x);
for(int i=0;i<n;++i)
{
f>>x;a.push_back(x);
if(x==maj)nr++;
else
if(nr>0)nr--;
else
{
maj=x;nr=1;
}
}
nr=0;
for(int i=0;i<n;i++)
if(a[i]==maj)nr++;
if(nr>n/2)g<<maj<<' '<<nr<<'\n';
else g<<-1<<'\n';
return 0;
}