Cod sursa(job #1607385)

Utilizator denniscrevusDennis Curti denniscrevus Data 21 februarie 2016 01:56:40
Problema Elementul majoritar Scor 80
Compilator cpp Status done
Runda Arhiva educationala Marime 0.86 kb
#include <fstream>


long int v[1000000];
using namespace std;

int main()
{
    ifstream f("elmaj.in");
    ofstream g("elmaj.out");
    int n,i,k,j,elmaj=-1,ap=0;
    f>>n;
    for(i=0;i<n;i++)
        f>>v[i];
    for(i=0;i<=n/2+1;i++)
    {
        if(v[i]!=v[0])
        {
        k=n/2+1;
        ap=1;
        }
        else
        {
            k=n/2+2;
            ap=1;
        }
        for(j=i+1;j<n;j++)
        {
            if(v[i]!=v[j]&&k>0)
            {
                k--;
            }
            else if(v[i]==v[j]&&k>0)
            {
                k++;
                ap++;
            }
            if(k==0)
                break;
        }
        if(k>n/2+1 && k>0)
        {
            elmaj=v[i];
            break;
        }
    }
    if(elmaj>0)
    g<<elmaj<<" "<<ap;
    else
        g<<"-1";
}