Cod sursa(job #2656119)

Utilizator MerlinTheWizardMelvin Abibula MerlinTheWizard Data 6 octombrie 2020 20:04:54
Problema Elementul majoritar Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.7 kb
#include<iostream>
#include<fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,v[1000001];
void citire()
{
    f>>n;
    for(int i=1;i<=n;i++)
        f>>v[i];
}
void rezolvare()
{
    int aux=v[1];
    int nr=0;
    int cnt=0;
    for(int i=2;i<=n;i++)
    {
        if(v[i]!=aux)
            nr--;
        else
            nr++;
        if(nr<0)
        {
            aux=v[i];
            nr=0;
        }
    }
    for(int i=1;i<=n;i++)
    {
        if(v[i]==aux)
        {
            cnt++;
        }
    }
    if(cnt>=n/2+1)
        g<<aux<<" "<<cnt;
    else
        g<<"-1";
}
int main()
{
    citire();
    rezolvare();
}