Cod sursa(job #1100685)
Utilizator | Data | 7 februarie 2014 12:21:34 | |
---|---|---|---|
Problema | Elementul majoritar | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.6 kb |
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n, a, b, v[1000010], i;
int main(){
f>>n;
for(i=1; i<=n; i++)
f>>v[i];
a=v[1];
b=1;
for(i=2; i<=n; i++)
{
if(b==0)
{
a=v[i];
b=1;
}
else
{
if(v[i]==a)
b++;
else
b--;
}
}
b=0;
for(i=1; i<=n; i++)
if(v[i]==a)
b++;
if(b>n/2)
g<<a<<' '<<b<<"\n";
else
g<<"-1\n";
return 0;
}