Cod sursa(job #2035155)

Utilizator GramaDavidGrama David Sebastian GramaDavid Data 8 octombrie 2017 23:05:20
Problema Elementul majoritar Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.86 kb
#include <iostream>
#include <fstream>

using namespace std;

ifstream f("elmaj.in");
ofstream g("elmaj.out");

int elmaj(int n, int a[]) {
    int x=-1, m=0,s;
    for (int i=0; i < n; i++) {
        if (m == 0) {
            x=a[i];
            m=1;
        }
        else if (a[i]==x) {
            m++;
        }
        else{
            m--;
        }
    }
    if (x < 0){
        return x;
    }

    int nr = 0;
    for (int i = 0; i < n; i++) {
        if (a[i] == x){
            nr++;
        }
    }
    if (nr> n/2){
        return x;
    }
    else{
        s=-1;
        return m;
    }
}

int main()
{
    int r,v[50002];
    cin>>r;
    for(int i=1;i<=r;i=i+1){
        cin>>v[i];
    }
    for(int i=1;i<=r;i=i+1){
        if(elmaj(v[i],v)!=-1){
            cout<<v[i]<<" "<<elmaj(v[i],v);
        }
    }
}