Cod sursa(job #2282150)

Utilizator MihneaGhiraMihnea MihneaGhira Data 13 noiembrie 2018 12:46:55
Problema Elementul majoritar Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.68 kb
#include<fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n;
int v[1000001];

void majoritar(int n, int v[]){
    int x=-1;
    int k=0;
    for(int i=1;i<=n;i++){
        if(k==0){
            x=v[i];
            k++;
        }
        else{
            if(v[i]==x)
                k++;
            else
                k--;
        }

    }
    int nr=0;
    for(int i=1;i<=n;i++)
        if(v[i]==x)
            nr++;
    if(nr>=n/2+1)
        fout<<x<<" "<<nr;
    else
        fout<<-1;
    return;

}


int main(){
    fin>>n;
    for(int i=1;i<=n;i++)
        fin>>v[i];
    majoritar(n,v);
    return 0;
}