Cod sursa(job #2236048)

Utilizator FunnyStockyMihnea Andreescu FunnyStocky Data 27 august 2018 22:46:23
Problema Elementul majoritar Scor 70
Compilator cpp Status done
Runda Arhiva educationala Marime 0.65 kb
#include <bits/stdc++.h>

using namespace std;

int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    int n;
    cin>>n;
    vector<int>v(n);
    for(int i=0;i<n;i++)
        cin>>v[i];
    int winner=v[0],vot=1;
    for(int i=1;i<n;i++)
        if(v[i]==winner)
            vot++;
        else
        {
            if(vot==1)
                winner=v[i];
            else
                vot--;
        }
    int have=0;
    for(int i=0;i<n;i++)
        if(v[i]==winner)
            have++;
    if(have>=n/2+1)
        cout<<winner<<" "<<have<<"\n";
    else
        cout<<"-1\n";
    return 0;
}