Cod sursa(job #1331094)
Utilizator | Data | 31 ianuarie 2015 12:28:35 | |
---|---|---|---|
Problema | Elementul majoritar | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.78 kb |
#include<fstream>
using namespace std;
int v[1000002];
int main()
{
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int i,n,nrmaj=0,nraparitii=0;
f>>n;
for(i=1; i<=n; i++)
f>>v[i];
for(i=1; i<=n; i++)
{
if(nrmaj==0)
{
nrmaj=v[i];
nraparitii=1;
}
else if(v[i]==nrmaj)
++nraparitii;
else if(nraparitii==1)
{
nrmaj=0;
nraparitii=0;
}
else
--nraparitii;
}
nraparitii=0;
for (i=1; i<=n; i++)
{
if(v[i]==nrmaj)
++nraparitii;
}
if(nraparitii<=n/2)
g<<"-1";
else
g<<nrmaj<<' '<<nraparitii;
return 0;
}