Cod sursa(job #2662166)

Utilizator proflaurianPanaete Adrian proflaurian Data 23 octombrie 2020 16:58:21
Problema Elementul majoritar Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.55 kb
#include <bits/stdc++.h>

using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
const int N = 1000010;
int n,cnt,maj,x[N];
int main()
{
    f>>n;
    for(int i=1;i<=n;i++)
        f>>x[i];
    for(int i=1;i<=n;i++)
    {
        if(cnt==0)
            maj=x[i];
        if(x[i]==maj)
            cnt++;
        else
            cnt--;
    }
    cnt=0;
    for(int i=1;i<=n;i++)
        if(x[i]==maj)
            cnt++;
    if(cnt>n-cnt)
        g<<maj<<' '<<cnt<<'\n';
    else
        g<<"-1\n";
    return 0;
}