Cod sursa(job #1880251)

Utilizator dumitrescugeorgeGeorge Dumitrescu dumitrescugeorge Data 15 februarie 2017 17:23:26
Problema Elementul majoritar Scor 60
Compilator cpp Status done
Runda Arhiva educationala Marime 0.77 kb
#include <iostream>
#include <cstdio>

using namespace std;
int n,a[100010];
void citire()
{
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
        scanf("%d",&a[i]);
}
void cerinta()
{
    int ok=0,cand,nr=0;
    for(int i=1;i<=n;i++)
    {
        if(ok==0)
        {
            cand=a[i];
            ok=1;
        }
        else
            if(a[i]==cand)
                ok++;
        else
            ok--;
    }
    for(int i=1;i<=n;i++)
    {
        if(a[i]==cand)
            nr++;
    }
    if(nr>n/2)
        printf("%d %d",cand,nr);
    else
        printf("-1");
}
int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    citire();
    cerinta();
   // cout << "Hello world!" << endl;
    return 0;
}