Cod sursa(job #634521)
Utilizator | FMI Ciprian Olariu scipianus | Data | 16 noiembrie 2011 16:57:51 |
---|---|---|---|
Problema | Elementul majoritar | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include<fstream>
using namespace std;
int n,v[1000010];
int main()
{
int i,x,nr;
ifstream fin("elmaj.in");
fin>>n;
for(i=1;i<=n;i++)
fin>>v[i];
fin.close();
x=v[1];
nr=1;
for(i=2;i<=n;i++)
{
if(v[i]==x)
nr++;
else
nr--;
if(nr<0)
{
x=v[i];
nr=1;
}
}
nr=0;
for(i=1;i<=n;i++)
{
if(v[i]==x)
nr++;
}
ofstream fout("elmaj.out");
if(nr>=n/2+1)
fout<<x<<' '<<nr<<"\n";
else
fout<<"-1\n";
fout.close();
return 0;
}