Cod sursa(job #1156582)
Utilizator | Cristina Borza cristina_borza | Data | 27 martie 2014 19:48:16 |
---|---|---|---|
Problema | Elementul majoritar | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.58 kb |
#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,nr,sansa,a[1000002],i,ap;
int main()
{
fin>>n;
for(i=1;i<=n;i++)
fin>>a[i];
nr=a[1];
sansa=1;
for(i=1;i<=n;i++)
{
if(a[i]==nr)
sansa++;
else
sansa--;
if(sansa<0)
{
sansa=1;
nr=a[i];
}
}
for(i=1;i<=n;i++)
if(a[i]==nr)
ap++;
if(ap>n/2)
fout<<nr<<" "<<ap;
else
fout<<-1;
return 0;
}