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Cod sursa(job #785443)
#include <fstream>
#include <algorithm>
#include <vector>
using namespace std;
#define Max 666013
ifstream f("elmaj.in");
ofstream h("elmaj.out");
vector<int>g[Max];
int n;
void rasp()
{
int p,mx,nr;
for(int i=0;i<Max;i++)
if( g[i].size() > n/2 )
{
sort(g[i].begin(),g[i].end());
p = g[i][0];
mx = 1;
nr = 1;
for(int j=1;j<g[i].size();j++)
{
if( g[i][j] == g[i][j-1] )nr++; else nr = 0;
if( nr > mx ){ p = g[i][j]; mx = nr; }
}
}
if( nr > n/2 )
{
h << p <<' '<< mx <<'\n';
return;
}
h << "-1\n";
}
int main()
{
int x;
f >> n;
for(int i=1;i<=n;i++)
{
f >> x;
g[x%Max].push_back(x);
}
rasp();
return 0;
}