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Cod sursa(job #716717)
#include<stdio.h>
#include<fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,k;
int v[1000001];
int main(){
f>>n;
for(int i=0;i<n;i++){
f>>v[i];
}
int c=-1;
for(int i=0;i<n;i++){
if(k==0){
c=v[i];
k=1;
}
else{
if(v[i]==c)k++;
else k--;
}
}
if(c<0)
g<<-1;
int nr=0;
for(int i=0;i<n;i++)
if(v[i]==c)
nr++;
if(nr>n/2)
g<<c<<" "<<nr;
else
g<<-1;
return 0;
}