Cod sursa(job #2418106)
Utilizator | Alecs Andru ALEx6430 | Data | 3 mai 2019 16:43:47 |
---|---|---|---|
Problema | Elementul majoritar | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.55 kb |
#include <fstream>
#include <unordered_map>
using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
int main()
{
ios_base::sync_with_stdio(0);
in.tie(0);
out.tie(0);
int n;
in >> n;
unordered_map<int,int> um;
int maj = n/2 + 1;
int elem = 0;
for(int i = 0; i < n; i++)
{
int tmp;
in >> tmp;
int fr = ++um[tmp];
if(!elem && fr >= maj) elem = tmp;
}
if(elem) out << elem << ' ' << um[elem];
else out << -1;
return 0;
}