Cod sursa(job #3216192)
Utilizator | Bora Ioan Alexandru Alexbora13 | Data | 15 martie 2024 18:23:45 |
---|---|---|---|
Problema | Elementul majoritar | Scor | 30 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.66 kb |
#include <bits/stdc++.h>
#define MAX 1000000
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
long long v[MAX+1];
long long elmaj, ap, n;
int main()
{
fin >> n;
for(int i=1; i<=n; i++)
fin >> v[i];
elmaj = v[1];
ap = 1;
for(int i=2; i<=n; i++)
{
if(ap == 0)
elmaj = v[i];
else
{
if(v[i] == v[i-1])ap++;
else ap--;
}
}
int ap = 0;
for(int i=1; i<=n; i++)
if(v[i] == elmaj)
ap++;
if(ap >= n/2+1)
fout << elmaj << ' ' << ap;
else
fout << -1;
return 0;
}